发明名称 |
Catalytic cracking method with maximisation of diesel bases |
摘要 |
<p>The catalytic cracking process comprises performing a cracking reaction in a bottom fluidized bed reactor (1), separating cracked hydrocarbons and catalyst coke, and fractionating the cracked hydrocarbons and a then regenerating the catalyst coke. The hydrocarbon feedstock is injected into an upstream reactor of a partially deactivated catalyst by coking so that the temperature of reaction of the effluent ranges from 470-600[deg] C. The pre-coking of the catalyst is achieved by injecting a hydrocarbon compound having a boiling temperature of 350[deg] C on a portion of regenerated catalyst. The catalytic cracking process comprises performing a cracking reaction in a bottom fluidized bed reactor (1), separating cracked hydrocarbons and catalyst coke, and fractionating the cracked hydrocarbons and a then regenerating the catalyst coke. The hydrocarbon feedstock is injected into an upstream reactor of a partially deactivated catalyst by coking so that the temperature of reaction of the effluent in outlet of the reactor ranges from 470-600[deg] C. The pre-coking of the catalyst in the reactor is achieved by injecting a hydrocarbon compound having a boiling temperature of 350[deg] C on a portion of regenerated catalyst, where the portion is defined by an area defined by an internal device. A part of the separated catalyst coke is returned directly to the reactor in downstream of the injection of hydrocarbon feedstock at a temperature below the reaction temperature. A part of the regenerated catalyst is coked in upstream of the injection of the load by the hydrocarbon compound, and a portion (1-75%) of the stripped and recovered catalyst coke is returned in upstream and/or downstream of the injection of load into the reactor. A cut-off temperature of lower than 160[deg] C is provided on the catalyst regenerated in the reactor, during injection step. The process further comprises performing additional cracking reaction in the reactor and recycling the hydrocarbonized cut having a boiling point of lower than 145[deg] C and/or a boiling point of greater than 350[deg] C. A second upstream reactor is used for cracking of hydrocarbon cuts with a ratio of carbon and oxygen of 4-20 at 470-650[deg] C. An independent claim is included for a device performing for catalytic cracking process to maximize production of diesel oils.</p> |
申请公布号 |
EP2336273(B1) |
申请公布日期 |
2013.06.19 |
申请号 |
EP20100193432 |
申请日期 |
2010.12.02 |
申请人 |
TOTAL RAFFINAGE MARKETING |
发明人 |
BORIES, MARC;LEROY, PATRICK;ECHARD, MICHAEL;GAUTHIER, THIERRY |
分类号 |
C10G11/18;B01J8/24;B01J8/32 |
主分类号 |
C10G11/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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