Nickel-base biomass tar reforming catalyst and preparation method thereof

The invention discloses a nickel-base biomass tar steam reforming catalyst and a preparation method thereof. The catalyst takes gamma-Al2O3 as a carrier and comprises the following components in percentage by mass: 10 to 35 percent of NiO, 8 to 30 percent of CeO2, and the balance of the gamma-Al2O3; and preferably, the catalyst comprises the following components in percentage by mass: 20 to 28 percent of the NiO, 85 to 25 percent of the CeO2, and the balance of the gamma-Al2O3. The preparation method comprises the following steps of: co-flowing and co-precipitating aqueous solution and weak alkali solution of a nickel salt, a cerium salt and an aluminum salt; performing calcination after the processes of ageing, filtering, drying and dewatering; and performing molding to obtain the catalyst. The catalyst has the characteristics of simple preparation method and high activity, and is suitable for the steam reforming process of a biomass gasification tar.

Biomass gasification tar cracking catalyst and preparation method thereof

The invention discloses a biomass gasification tar cracking catalyst and a preparation method thereof, wherein the catalyst is prepared through adopting stepped immersion method. The catalyst uses r-Al203 as carriers, utilizes NiO as active components, and utilizes La 203, CeO2 and MgO as auxiliary agents. The content of the active components NiO is 10-30%, the content of the auxiliary agents La203 is 3-8%, the content of the auxiliary agents CeO2 is 2-6%, the content o the auxiliary agents MgO is 1-3%, and the others are r-Al203, and the weight sum of the above substances is one percent. The catalyst has excellent activity and selectivity, has high intensity and high cracking efficiency, the content of polycyclic aromatics compound in cracked residuals is less, and the carbon accumulation content of the catalyst is little. The biomass gasification tar cracking catalyst is suitable for tar catalytic cracking during the gasification process of biomass, and is particularly suitable for the ...

Device and method for producing combustible gas by adopting waste residue of yellow ginger or traditional Chinese medicinal material

The invention discloses a device and a method for producing combustible gas by adopting waste residues of yellow gingers or traditional Chinese medicinal materials. The device comprises a gasification furnace consisting of a bed material bin, a boiling segment and a suspension segment, wherein the boiling segment is connected with a feeding device, and the device is characterized in that a pipeline air inlet device is arranged at the lower end of the boiling segment of the gasification furnace, a secondary rotary air pipe is arranged on the suspension segment of the gasification furnace, the feeding device is provided with a vibration device, the pipeline air inlet device comprises an air inlet pipe, the air inlet pipe is connected with an annular air chamber arranged at the lower end of the boiling segment of the gasification furnace, horizontal air pipes are arranged in parallel at the top of the annular air chamber, and air inlet pipes of the boiling segment of the gasification furnace ...

Biomass gasification tar cracking catalyst and preparation method thereof

The invention discloses a biomass gasification tar cracking catalyst and a preparation method thereof, wherein the catalyst is prepared through adopting stepped immersion method. The catalyst uses r-Al203 as carriers, utilizes NiO as active components, and utilizes La 203, CeO2 and MgO as auxiliary agents. The content of the active components NiO is 10-30%, the content of the auxiliary agents La203 is 3-8%, the content of the auxiliary agents CeO2 is 2-6%, the content o the auxiliary agents MgO is 1-3%, and the others are r-Al203, and the weight sum of the above substances is one percent. Thecatalyst has excellent activity and selectivity, has high intensity and high cracking efficiency, the content of polycyclic aromatics compound in cracked residuals is less, and the carbon accumulation content of the catalyst is little. The biomass gasification tar cracking catalyst is suitable for tar catalytic cracking during the gasification process of biomass, and is particularly suitable for the ...

Method for preparing combustable gas using peltate yam waste slag

The method of preparing combustible gas with waste peltate yam dreg includes feeding waste peltate yam dreg with one spiral feeder into one gasifying apparatus, and pyrolyzing waste peltate yam dreg at high temperature into combustible gas via controlling the ratio between air and the waste dreg and the staying time of the waste dreg inside the gasifying apparatus. The said method converts waste peltate yam dreg into combustible gas, and can reduce energy source waste and reduce environmental pollution caused by discarded waste dreg.

Gas lower exhaustion type whirlwind air-solid separator