19-04-2018 дата публикации
Номер: US20180105756A1
A process for the treatment of a gasoline containing sulphur-containing compounds, olefins and diolefins: 1. A process for the treatment of a gasoline containing sulphur-containing compounds , olefins and diolefins , comprising the following steps: a light gasoline cut LCN;', 'a primary intermediate gasoline cut, MCN; and', 'a primary heavy gasoline cut HHCN;, 'a) fractionating the gasoline into at least{'sup': −1', '3', '3', '3', '3', '3', '3, 'b) desulphurizing the primary intermediate gasoline cut MCN alone and in the presence of a hydrodesulphurization catalyst and hydrogen, at a temperature in the range 160° C. to 450° C., at a pressure in the range 0.5 to 8 MPa, with a liquid space velocity in the range 0.5 to 20 hand with a ratio between the flow rate of hydrogen, expressed in normal mper hour, and the flow rate of feed to be treated, expressed in mper hour under standard conditions, in the range 50 Nm/mto 1000 Nm/min a manner such as to produce an at least partially desulphurized primary intermediate gasoline cut MCN;'}{'sup': −1', '3', '3', '3', '3', '3', '3, 'c) desulphurizing the primary heavy gasoline cut HHCN alone in the presence of a hydrodesulphurization catalyst and hydrogen, at a temperature in the range 200° C. to 450° C., at a pressure in the range 0.5 to 8 MPa, with a liquid space velocity in the range 0.5 to 20 hand with a ratio between the flow rate of hydrogen, expressed in normal mper hour, and the flow rate of feed to be treated, expressed in mper hour under standard conditions, in the range 50 Nm/mto 1000 Nm/min a manner such as to produce an at least partially desulphurized primary heavy gasoline cut HHCN;'}{'sub': '2', 'd) sending, as a mixture, the partially desulphurized primary intermediate gasoline cut MCN which has not undergone treatment following step b) and the partially desulphurized primary heavy cut HHCN which has not undergone treatment following step c) to a separation column in order to separate a gaseous stream containing ...
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