Method for separating hydrocarbon hydrocracking products

A hydrocracking and separation method technology is applied in the field of separation of hydrocarbon hydrocracking products, which can solve the problems of increasing a naphtha fractionator, increasing one-time investment and operating costs, increasing energy consumption, etc. The effect of solving the problem of hydrogen sulfide corrosion and liquefied gas desulfurization and avoiding the possibility
CN1371961AInactive Publication Date: 2002-10-02LUOYANG PETROCHEMICAL ENG CORP SINOPEC
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
LUOYANG PETROCHEMICAL ENG CORP SINOPEC
Publication Date
2002-10-02
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The separation method of hydrocracked product of hydrocarbons incldudes stabilization tower, hydrogen sulfide washing tower, debutanizing tower, deethanizing column and light hydrocarbon absorption tower. The stabilizatino tower is designed according to cutting portion or all C6 component, the absorption oil of light hydrocarbon absorption tower is from tower bottom product flow of debutanizing tower, the overhead gas of stabilizaltion tower, overhead gas of debutanizing tower and overhead gas of deethanizing column are mixed, and fed into light hydrocarbon absorption tower to recover light hydrocarbon, and the tower bottom rich absorption oi lof light-hydrocarbon absorption tower and hydrogen sulfide washing tower feeding material coming from stabilizatino tower and mixed, and fed into hydrogen sulfide washing tower. The C3 and C4 components can be completely recovered, and its liquified gas yield is high.
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Description

technical field

[0001] The invention relates to a method for separating hydrocarbon hydrocracking products, in particular to a method for recovering and desulfurizing light hydrocarbons of hydrocarbon hydrocracking products. technical background

[0002] Hydrocracking unit has increasingly become a key means to balance refinery production and market demand due to its wide range of raw oil processing, flexible product structure, good product quality, and high liquid yield. At present, the fractionation process of the hydrocracking unit mostly adopts the scheme of first stabilization and then fractionation, that is, the low-fraction oil from the reaction part is first separated from C by the stabilization tower. 4 The following components are removed by deethanizer 1 and C 2 , recovery of liquefied gas, and C 4 The above cuts are fractionated into various product components in the normal and vacuum fractionation towers. This scheme has simple process and convenient operati...

Claims

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