METHOD AND DEVICE FOR GENERATION OF PROCESS STEAM AND WATER STEAM SUPPLY BOILER IN TRANSFORMATIVE HEATED REACTOR FOR PRODUCTION OF SYNTHETIC GAS

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Method and device for the generation of technological vapor and water vapor of the nourishment of boiler before the heated converting reactor for the production of synthetic gas invention relates down the method for the generation of technological vapor and water vapor of the nourishment of boiler before the heated converting reactor for the production of synthetic gas. Inventor method serves for using the contact heat of the synthetic gas, produced from the hydrocarbons and pair, to so as to obtain two types of vapor, each of which is generated during heating and evaporating the water of the nourishment of boiler and yu of technological condensate, the method also including the transformation of the carbon monoxide, which is contained before the synthetic gas, and the method including the optional heating of water of the nourishment of boiler by the flue gas, obtained based on heating of the converting reactor. Method makes it possible to use contact of heat- synthetic gas and flue gas from the heating more effectively, in this case avoiding deficiencies in heating flue gas concerning a change in the quantity of heat, accessible before the channel of flue gas.

Invention also relates down the device for the realization of this method.

synthetic gas can be generated, for example, by the catalytic transformation of the gaseous or evaporated hydrocarbons with the aid of the vapor before the heated converting reactor, heating is performed by combusting the fuel gas with the oxygen gas.

After generation synthetic gas has a temperature from approximately 800 °[S] to approximately 900 °[S]. contact of the heat- obtained synthetic gas, thus, it can be used for the generation of vapor. Heating gives flue gas, which also bears contact heat- and can equally to be used for the generation of vapor. Vapor, in turn, can be used for the actuating of auxiliary elements or steam turbine.

for the generation of vapor as the water of nourishment can be used the technological condensate, which is condensed the water, which is formed during cooling of synthetic gas. This \ 2012/031683

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technological condensate, however, has a deficiency, which is consisted before the fact that it contains the same admixtures, which are contained before the synthetic gas.

Such admixtures frequently have undesirable corrosive action, so that pairs it is not absolutely suitable for all applications. Therefore this vapor usually is used as starting vapor before the reaction of conversion.

furthermore, a quantity of vapor, obtained based on the technological condensate, is usually insufficient for the actuating of all auxiliary elements, which frequencies require a constant quantity of vapor. In order to solve this problem, additional vapor can be generated by yu from the pure water of the nourishment of boiler. This vapor contains no admixtures, so that it satisfies the rigid requirements, which must be carried out with the operation of steam turbines. Consequently, two forms of vapor are obtained.

operation of two steam systems have great advantages.

It is possible to mix up vapor from the technological condensate, for example, with the vapor from the boiler water in order to guarantee the accessibility of the sufficiency of vapor for the production of synthetic gas or to have an effect on the composition of vapor in accordance with the cleanliness, required for the process or the application below on the technological cycle.

pairs, obtained from the water of the nourishment of boiler, not only can be used for the operation of auxiliary elements or steam turbines, but also it can be exported or be used as the feeding vapor for the generation of synthetic gas. Vapor from the water of the nourishment of boiler can be generated, for example, by heating water of the nourishment of boiler by the industrial gas, which is the recently produced synthetic gas of high temperature. It is analogous, pairs of the technological condensate, which is the water, condensed from the synthetic gas, it can be generated by heating technological condensate by synthetic gas. Here typical procedure are heating water of the nourishment of boiler or technological condensate before the preliminary heater, designed in the form of heat exchanger, and above then - the evaporation of the heated water \ 2012/031683

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before the steam generator. Steam generator can, for example, be designed as the steam drum, which is heated by synthetic gas by means of the conducting liquid coil of heat exchanger.

\ of 20100519001 reveal method and device for using the heat before the steam conversion of hydrocarbon raw material with the aid of the vapor, before which steam converter is used for the generation of synthetic gas, which transfers certain quantity of heat, that include in proportion to six heat exchangers, the element of water purification, cooling section, the element of high-temperature conversion, on yu to smaller measure two elements of an increase in the pressure, at least one user and at least one element for further working of the obtained synthetic gas, the generated synthetic gas, which carries the first quantity of heat, passing the element of the high-temperature conversion, where its major portion is converted beside carbon dioxide and hydrogen, and the obtained carrying heat- synthetic gas is sent at the point of the first heat exchanger for further heat transfer, then it passes through at least the two additional heat exchangers, which work as the preliminary heaters of water of the nourishment of boiler, the heat exchangers of derived condensate or low-pressure evaporators are connected in series before any desired order, the synthetic gas, which is obtained based on the low-pressure evaporator, first is directed to another preliminary heater of water of the nourishment of the boiler, before which thermal energy is transferred to partial vapor of water of the nourishment of boiler from the water-cleaning element, the obtained synthetic gas then passes the cooling section, where the synthetic gas additionally is cooled and it is produced the flow of condensate, and finally synthetic gas is conducted through at least one element for the additional working. Process points out no possibility to use heat- synthetic gas above on the motion from the high-temperature transformative element.

in order to generate vapor from the technological condensate; also it is possible to use contact of heat- flue gas. 118 20092428411 \ 2012/031683

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method for the generation of synthetic gas, before which synthetic gas is generated by steam conversion before the converting reactor, with the airflow for the combustion, by convective zone and by the flow of flue gas, reveals, and method includes the technological step of the passage of combustion air concerning the preliminary heat exchange system before the convective zone in order to heat combustion air before the indirect heat exchange with the flue gas, moreover the temperature of the preheated combustion air varies from approximately 93 °[S] (200 °[R]) to 204 °[S] (400 °[R]). In accordance with one version of the realization of method, the water of the nourishment of boiler is heated by its yu by passage concerning the section of cooling synthetic gas and convective zone of combustion air afterward or in parallel with the combustion air, which is subject down heating, convective zone is heated by the flow of flue gas.

in order to heat water of the nourishment of boiler or technological condensate by flue gas, usually for the work with the fractional load it is necessary to adapt the quantity of heat, accessible before the channel of flue gas with a constant mass flow rate of technological condensate or water of the nourishment of boiler in order to guarantee the evaporation of water. This means that must be allowed an additional quantity of heat, at least temporarily, for example, with the aid of the auxiliary furnaces. This entails an increase in the cost of operation.

however, since the dual steam system has the advantages mentioned above, are investigated possibilities for obtaining the additional improvements. Initial point for an improvement in the effectiveness of dual steam system is the circuit of heat exchanger before the channel of flue gas at the point of the period of time, during which before the channel of flue gas of heat it is insufficient. Thus, there is no need for exploiting additional furnaces for heating of the channel of flue gas.

[United Nations] technological condensate can be heated by the outgoing heat of flue gas. However, since the technological condensate usually not is cooled down temperatures of cold water of the nourishment of boiler, its temperature \ 2012/031683

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it is higher than in cold water of the nourishment of boiler. Because of a lower temperature differential with the flue gas, the heat exchangers for the technological condensate before the channel of flue gas, thus, in accordance with the law of cooling Newton require large heat exchange surfaces.

Since a temperature differential between the technological condensate and the hot synthetic gas is more, on the technological gas line below on the motion based on the converting reactor are required substantially smaller heat exchange surfaces, than before the channel of flue gas. Since the reaction of shift “water- gas” additionally occurs at substantially lower temperatures than yu the production of synthetic gas, heat- production of synthetic gas can be used more effectively for the technological condensate immediately after of release from the converting reactor, where the temperature is substantially higher than lower on the motion from the transformative element. In turn, the heat exchange surfaces of smaller size will contribute down the improved efficiency of method.

consequently, is a purpose to grant the method, which uses heat- synthetic gas on the motion from the transformation of carbon monoxide in order to evaporate technological condensate. Another purpose of method it is to decrease the dependence beyond the changing quantities of heat, accessible before the channel of flue gas. These measures serve for continuing the use of advantages of dual steam system and for an improvement in the efficiency of the generation of vapor before the converting reactors.

inventions achieve goal with the aid of the method, which uses an additional steam generator, established on the motion from the element of the transformation of carbon monoxide, for the generation of vapor from the technological condensate. Since the generation of vapor from the water of the nourishment of boiler to on the motion from the transformative element already acts, that is suitable it appears to also generate vapor from the technological condensate in the same place. Thus, it is possible to replace a constant generation of vapor from the technological of condensate for the sake of the channel of flue gas.

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coolings of industrial gas from the output of converter outside the temperature of the entrance of the reaction of shift “water- gas” to the present moment usually it led down the evaporation of water of the nourishment of boiler. Other examples show that the part of the heat also is used for the preheating of raw material. Thus, for reacting the conversion can be used, for example, natural gas or mixture of raw gas. Now, in accordance with the present invention, technological condensate additionally evaporates between the output of converter and the entrance of the reaction of shift “water- gas”. Thus, is predominantly achieved the evaporation of technological condensate yu as far as industrial gas. Thus, it is possible to in full or in part turn from the evaporation of technological condensate to the channel of flue gas.

Since a temperature differential between the technological condensate and the hot synthetic gas is above on the motion from the element of conversion relatively high, the requiring heat exchange surfaces will have substantially smaller size, than before the channel of flue gas. This will, in turn, contribute down the improved efficiency of method.

over heating of technological condensate before the channel of flue gas advantage are to heat water of the nourishment of boiler, since it colder and, because of the smaller heat exchange surfaces, requires smaller contact surface with the caustic synthetic gas. This will also contribute down the improved efficiency of method.

depending on the degree of utilization of a device, channel of flue gas can be used for the generation of vapor from the water of the nourishment of boiler.

In this case the heat transfer of flue gas can be gone around. For this the coils, which transmit water of the nourishment of boiler through the channel of flue gas, bypass down the period, when before the channel of flue gas an accessibly insufficient quantity of heat. Thus it is possible to use a less expensive heat exchanger before the channel of flue gas, since are required the smaller heat exchange surfaces, when economical heating is more inaccessible as a result of the temperature of differences before the channel of flue gas. Thus it is possible to also heat part of the water of the nourishment of boiler or additional water of the nourishment of boiler before the channel furnace \ 2012/031683

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gas. The use of cold water of the nourishment of boiler makes more effective heat exchange because of the higher difference of temperatures with the flue gas possible.

is mainly declared method for the generation of technological vapor and vapor of water of the nourishment of boiler before the heated converting reactor for the production of synthetic gas, moreover hydrocarbons and water vapor, gas is heated by the combustion of fuel gas with the oxygen gas, and the produced synthetic gas is cooled, and then is condensed with the aid of a number of heat exchangers and cooling section, so that are obtained the dried synthetic gas and technological condensate, and the obtained carbon monoxide with the water ferry boat, in order to form carbon dioxide and hydrogen, and they are generated from the evaporation of water of the nourishment of boiler and evaporation of technological condensate, and the preliminary heater, established below on the motion from the transformative element before the direction of the flow of gas, and water of the nourishment of boiler then evaporates by the steam generator, established to on the motion from the transformative element before the direction of the flow of gas, and by preliminary heater, which both are established below on the motion from the transformative element before the direction of the flow of gas, and which is characterized by the fact that \ 2012/031683

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by the steam generator, established above on the motion from the transformative element.

in order to guarantee, that flue gas also can be used for heating of water of the nourishment of boiler, line for the liquid water of the nourishment of boiler can be carried out through the channel of flue gas, water of the nourishment of boiler is heated by constantly or temporarily flue gas by means of the additional heat exchanger. For this on the line of supply for the water of the nourishment of boiler before the heat exchangers of the channel of flue gas are established dosing yu the valves. These metering valves make it possible to go around heat exchanger, if, for example, before the channel of flue gas it is inaccessibly sufficient heat.

since the economic effectiveness of method in essence depends on the agreement of the yield of vapor for the sake of the need at the point of the pair, it is possible to control the output of all steam generators before the system before the preferred version of the realization of method. It is possible to reach, for example, this via the control of the yield of vapor based on the water of the nourishment of boiler by means of the inspection of the temperature of steam generator for the water of the nourishment of boiler. This, however, it is possible to reach and even when the circulation of heat before the steam generator as far as valves or by pumps.

yields of vapor based on the technological condensate also can be controlled before the preferred version of the realization of method. This equally it is possible to reach controlling the yield of vapor based on the technological condensate by means of the inspection of the temperature of steam generator for the technological condensate. This, however, it is possible to reach and even when the circulation of heat before the steam generator as far as valves or by pumps. However, is more difficult to realize the control of the yield of vapor based on the technological condensate, since an accessible quantity of technological condensate is connected for the sake of the production of synthetic gas.

[by 0021] before the different version of the realization of inventor process also can be controlled both the yield of vapor based on the water of the nourishment of boiler and output \ 2012/031683

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pair of the technological condensate, with the aid of the inspection of the temperature of steam generators. It is understandable that both types of vapor can be mixed up or be combined with each other in accordance with the requirements.

two steam generators for the water of the nourishment of boiler and technological condensate below on the motion from the converting reactor before the direction of the flow of synthetic gas can be equipped for the sake of the roundabout conduits, which make it possible to control the flow of the synthetic gas through the steam generators. Also it is possible to ensure additional heat exchangers for heating of hydrocarbon starting mixture for the converting reactor above on yu to motion or directly lower on the motion from the transformative element.

configurations of method can also include the assignment of evaporative boiler as the steam generator for the technological condensate above on the motion from the transformative element. Configuration also can include that the fact that the heat exchanger for the technological condensate below on the motion from the reaction of shift “water- gas” is evaporative boiler. This is the means of the control of the temperature of synthetic gas. Also it is possible to pass the flow of synthetic gas above on the motion and it is below on the motion from the transformative element through one evaporative boiler with the integral coil. Thus the evaporation of technological condensate can be arranged with the minimum requirements at the point of the arrangement. The use of individual evaporative boilers and the determination of the connected operating cycles remain to judgement specialist in this area of technology. Thus it is possible to achieve control of temperature for the flow of synthetic gas, which is independent from the production of flue gas and synthetic gas. It is understandable that synthetic gas also can include gas with the high content of hydrogen, depending on the degree of conversion.

is also declared the device, which serves for the realization of the described method. Is mainly declared device for the generation of technological vapor and vapor of water of the nourishment of boiler before that heated the converting reactor for the production of synthetic gas, that includes:

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synthetic gas from the hydrocarbons and the water vapor, water ferry boat before the carbon dioxide, technological condensate by synthetic gas, condensate by synthetic gas, heat exchanger is established directly lower on the motion from the transformative element before the direction of the flow of synthetic gas, element before the direction of the flow of synthetic gas, this generator is used for the generation of vapor from the water of the nourishment of boiler, and which is characterized by the fact that transformative element before the direction of the flow of synthetic gas, this generator is used for the generation of vapor from the technological condensate.

device can be equipped for the sake of additional heat exchanger for heating of water of the nourishment of boiler before the channel of flue gas.

Thus, the channel of flue gas also can be used for heating of water of the nourishment of boiler. In accordance with one version of the realization of invention, this channel can be disconnected, so that water of the nourishment of boiler can leak directly beside the special steam generator and without the flow through the channel of flue gas. Thus it is possible to go around heat exchanger before the channel \ 2012/031683

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flue gas and to retain flow from the passage concerning the channel. Water of the nourishment of boiler then there will be leak directly beside the special steam generator.

steam generators can have a construction, usually utilized in this area of technology. Before the illustrative version of realization they can be designed as the steam drum, heated by gas by means of the coil of heat exchanger. Steam generator can be designed as standard steam thermal-circulation boiler or equipped for the sake of convection elements, pumps or vaporizers.

before one version of the realization of invention the line yu of synthetic gas is supplied for the sake of the conduit, which can overlap and is allowed the controlled circuit of steam generator for the water of the nourishment of boiler above on the motion from the transformative element before the direction of gas flow (roundabout conduit). Thus it is possible to control the part of the synthetic gas, conducted through the heat exchanger for the water of the nourishment of boiler.

Before the different version of the realization of invention the line of synthetic gas is supplied for the sake of the conduit, which can overlap and allows the controlled circuit of steam generator for the technological condensate on the motion from the transformative element before the direction of gas flow.

Thus it is possible to control the part of the synthetic gas, conducted through the heat exchanger for the technological condensate. Also it is possible to establish and to use both roundabout lines.

steam generators for the water of the nourishment of boiler and technological condensate can be variables, although the preferable version of realization implies that the steam generator for the water of the nourishment of boiler is established directly lower on the motion from the converting reactor.

in accordance with one version of the realization of invention, steam generator for the line of synthetic gas to on the motion from the transformative element is evaporative boiler. In accordance with the different version of realization the heat exchanger on the line of synthetic gas is below on the motion from the transformative element WITH \ 2012/031683

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is evaporative boiler. However, also it is possible to supply the line of synthetic gas for the sake of evaporative boilers to on the motion, and it is also lower on the motion from the transformative element. Also it is possible to use evaporative boiler with the coil of the heat exchanger, which allows the passage of synthetic gas, on the motion, while it is also lower on the motion from the transformative element before the direction of the flow of gas. Before this evaporative boiler synthetic gas is heated simultaneously to on the motion and it is below on the motion from the transformative element. In that case steam drum for the technological condensate it is possible to lower yu illustratively. Also before the devices mentioned above it is possible to allow the large number of evaporative boilers. Evaporative boiler (boilers) or vaporizer (vaporizers) can be allowed as united element or as the set of elements. Evaporative boilers are noted for according to the existing level of technology and steel the usually utilized versions of boiler or vaporizer.

in accordance with one additional version of realization, both steam generators for the generation of vapor from the water of the nourishment of boiler and technological condensate can be controlled about the temperature. This can be realized by arbitrary devices. Aggregate usually also includes preliminary heaters for the water of the nourishment of boiler and technological condensate. They usually are projected as heat exchangers, and also they can be allowed before the arbitrary number and the order.

in accordance with one additional version of realization, element for the low-temperature conversion WITH the reaction of shift “water- gas” it is established between the preliminary heaters for the water of the nourishment of boiler and technological condensate with the synthetic gas in order to additionally use heat of the reaction of this conversion.

furthermore, inventor device can include the components at any point, which are required for the normal operation of the steam converting reactor. This, for example, heaters, thermostats, \ 2012/031683

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coolers, compressors, the pressure reducers, device of lowering the pressure or pumps. Such components of aggregate are known to specialist for the carrying out of a similar equipment.

inventions have an advantage, which consists besides the fact that contact of heat- synthetic gas also can be used above on the motion from the high-temperature transformative element for the carbon monoxide of the steam converting reactor. Invention has the additional advantage, which consists besides the fact that, with the retention of dual steam system, can be allowed pairs of the water of the nourishment of the boiler, which is heated by synthetic gas, and by flue gas from the heating, and also from the technological condensate, requiring no regulation of a quantity of heat before the channel of flue gas. This guarantees large independence according to the users of vapor concerning a quantity of consumed vapor.

inventions are illustrated by three graphic materials.

Fig. 1 is the image of installation with the production line of the existing technological level. Fig. 2 is the image of inventor installation with the production line, which presents only illustrative version of the realization, down which the invention is not limited. Fig. 3 is the image of the same version of realization, before which the steam generator and heat exchanger for the technological condensate were substituted for the sake of evaporative boilers.

Fig. 1 are the image of the device in accordance with the contemporary technological level, which includes the converting reactor (1) for the steam transformation of hydrocarbons. The latter works on the hydrocarbons (2) and the water vapor (3) for the conversion. Heating is carried out by fuel gas (4) and oxygen gas (5). The obtained synthetic gas (6) it has a temperature of approximately 800 °[S]- of 900 °[S] and is transferred with the purpose cooling through the heat exchanger (7), which heats by steam generator (7[a]) for the water (8) the nourishment of boiler. Before this version of realization the steam generator (7) for the water (8) the nourishment of boiler it is designed in the form steam drum (7[]). Synthetic \ 2012/031683

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gas (6) then it flows beside the high-temperature transformative element (9), where is added water vapor ([N]20, 9[a]), in order to convert being contained carbon monoxide () beside the carbon dioxide ([S]02) and hydrogen. The synthetic gas (6) then it flows beside another heat exchanger (10), heating steam generator ([Yua]) for the technological condensate (11). Before this version of realization the latter is also designed in the form steam drum (10[]).

The technological condensate (11) it is obtained based on the cooling section (12) for the synthetic gas (6[a]). Synthetic gas (6[a]), which was cooled along the way through heat exchangers (7,10) for the steam generators, is conducted through two more yu of heat exchanger, utilized as preliminary heaters (13,14) for the preheating of water (8) the nourishment of boiler and technological condensate (11). Leaving these heat exchangers (13,14), synthetic gas (6) it reaches the cooling section (12), where the synthetic gas (6[a]) cools or is cooled in order to ensure the condensation of being contained water (11a). The condensed water (on) further is used as technological condensate (11). Against the output is obtained the cooled dried synthetic gas (6[]). Technological condensate (11) is conducted concerning the channel (16) the flue gas through the heat exchanger (15) in order to additionally heat condensate. Steam drum (10[]) for the technological condensate (11) is also heated by flue gas (17) by means of the heat exchanger (18). Vapor (8[a], 11[]) is obtained based on the water (8) the nourishment of boiler and technological condensate (11).

Fig. 2 are the image of inventor device, which also includes the converting reactor (1), which produces synthetic gas (6) and transfers it down the high-temperature transformative element (9). The heat- produced synthetic gas (6) it is here also used as far as a high-temperature transformative element (9) for heating of steam generator (7[a]) by means of the heat exchanger (7) for the water (8) the nourishment of boiler. In accordance with the present invention heat- of synthetic gas (6) to on the motion from the high-temperature transformative element (9) is used for technological \ 2012/031683

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condensate (11), before additives to the heating with the aid of the heat exchanger (19) steam generator (10[a]). After output based on the high-temperature transformative element (9) synthetic gas is transferred through one additional heat exchanger (10) for heating of steam generator for the technological condensate (11) and two additional preliminary heaters (13,14), which serve for the preheating of water (11) the nourishment of boiler and technological condensate (8). Technological condensate (8) can be used for heating of water of the nourishment of boiler (1) as far as flue gas (17) by means of one additional heat exchanger (20) before the channel (16) flue gas. This yu the heat exchanger (20) it is possible to disconnect by valves (21[a], 21[]) and to go around on bypass valve (22), so that heat exchanger (20) can be used as it is necessary as far as need at the point of the vapor produced and use of the converting reactor (1). Heat exchangers for heating and evaporating technological condensate (10,19) can be designed as evaporative boilers. Synthetic gas (6[a]) also can the leak through the preliminary heaters (13) and (14) before the reverse order.

Fig. 3 are the image of the same version of realization, before which steam generator (19) and heat exchanger (10) with the steam drum ([YU]) for the technological condensate (11) they were substituted for the sake of the evaporative boiler (23). Synthetic gas (6), which leaves steam generator (7) for the water (8) the nourishment of boiler, it is carried out beside the evaporative boiler (23), where it is heated and it is carried out by means of input line (24) beside the element (9) conversion. From there it is conducted by means of output line (25) through the same evaporative boiler (23), so that its temperature then will be as above on the motion from the element (9) conversion.

list of designations and numbers of the references:

1 converting reactor 2 hydrocarbon \ of 2012/031683 16/[ER]2011/004205

3 water vapor 4 fuel gas is oxygen gas 6 synthetic gas of 6[a] the cooled synthetic gas of 6[] cooled and dried synthetic gas 7 heat exchanger for the steam generator for the water of the nourishment of the boiler of 7[a] steam generator for the water of the nourishment of the boiler of 7[] steam drum 8 water of the nourishment of the boiler of 8[a] of pairs of the water of the nourishment of boiler 9 high-temperature transformative element of 9[a] water vapor for the conversion heat exchanger for the steam generator for the technological condensate of 10[a] steam generator for the technological condensate of 10[] steam drum 1 1 technological condensate 11a condensed water from the synthetic gas of 1 1[] of the pairs of the technological condensate 12 cooling section \ of 2012/031683 17/[ER]2011/004205

13 preliminary heater for the preheating of water of the nourishment of boiler 14 preliminary heater for the preheating of technological condensate heat exchanger for heating of technological condensate before the channel of flue gas 16 channel of flue gas 17 flue gas 18 heat exchanger for the heating steam generator for technological condensate 19 heat exchanger for the heating technological condensate is above on the motion from the high-temperature transformative element heat exchanger before the channel of flue gas for the heating water of the nourishment of the boiler of 21[a], 21[] valves for turning off of heat exchanger before the channel of flue gas 22 bypass valve for the heat exchanger before the channel of flue gas 23 evaporative boiler 24 input line of conversion the output line of conversion WITH \ 2012/031683

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