A process for the processing of c5c6 hydrocarbons
By using multi-stage distillation and hydrogenation conversion reactions, and by combining ZSM-5 molecular sieves and active metal catalysts to gradually reduce the metal content, isoalkanes in C5C6 hydrocarbons are converted into high-value small-molecule n-alkanes. This solves the problem of low conversion efficiency of isoalkanes in existing technologies and improves the yield and economic benefits of ethylene feedstock.
CN122145263APending Publication Date: 2026-06-05CHINA PETROLEUM & CHEMICAL CORP +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2024-12-05
- Publication Date
- 2026-06-05
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Figure CN122145263A_ABST
Abstract
The application discloses a processing method of C5C6 hydrocarbon. The processing method comprises the following steps: C5C6 hydrocarbon is subjected to normal and iso separation, C5C6 normal alkanes obtained are directly used as ethylene raw materials, C5C6 iso alkanes obtained are introduced into a hydroconversion reaction zone, and are reacted with a hydroconversion catalyst to obtain a hydroconversion reaction effluent, the hydroconversion reaction effluent is subjected to high-pressure separation, hydrogen-rich gas and liquid-phase effluent are separated, and ethane, propane and normal butane are separated from the liquid-phase effluent, wherein the hydroconversion catalyst comprises ZSM-5 molecular sieve and active metal, and the content of the active metal of the hydroconversion catalyst decreases in turn along the flow direction. By adopting the method, the separated C5C6 iso alkanes can be efficiently converted into ethane, propane and normal butane, and the quality of the ethylene raw material can be maximized.
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