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Suspension bed hydrocracking technique for producing gasoline with high octane number and diesel oil with high cetane number simultaneously

A high-octane gasoline, hydrocracking technology, applied in hydrocarbon oil cracking, petroleum industry, etc., can solve the problems of low cetane number of diesel oil, high olefin content of gasoline, low octane number of gasoline, etc.

Inactive Publication Date: 2003-10-08
CHINA UNIV OF PETROLEUM (EAST CHINA)
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Problems solved by technology

This process can not only solve the problem of high olefin content and low cetane number of diesel oil produced by catalytic cracking process, but also solve the problem of low octane number of gasoline produced by hydrocracking process

Method used

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  • Suspension bed hydrocracking technique for producing gasoline with high octane number and diesel oil with high cetane number simultaneously
  • Suspension bed hydrocracking technique for producing gasoline with high octane number and diesel oil with high cetane number simultaneously

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Embodiment Construction

[0030] Suspension bed hydrocracking process is often used in the treatment of heavy hydrocarbon raw materials, and the catalysts are usually aqueous solutions of transition elements such as Co, Mo, Ni, Fe, W, Mn, organic compounds, inorganic or organic complexes, and heteropolyacids. Salt, natural ore powder, coal powder, special soil powder, and spent catalyst powder from other processes. These said catalysts are dispersed in heavy hydrocarbon feedstocks, mostly in suspension. If the reaction bed is fixed, it is called a fixed bed; if the reaction bed is fluidized, it is called a fluidized bed. The reaction bed is in a suspended state, so it is naturally called a suspended bed.

[0031] Catalysts mainly play two roles in the suspension bed hydrocracking process: ① promote hydrogen transfer, generate hydrogen free radicals to inhibit the condensation of fused ring free radicals produced by cracking reactions, that is, inhibit the production of coke; ② serve as a medium for ca...

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Abstract

A suspension-bed hydrocracking process for preparing both the gasoline with high octane number and the diesel oil with high cetane number at same time includes adding the aqueous solution of alcohol,which contains catalytic active component and assistant and is used as high-dispersity catalyst, to heavy hydrocarbon as raw material, cracking to generate olefin while reaction of the olefin on alcohol to obtain the oxygen-contained compound with high octane number. and hydrocracking to obtain said diesel oil. Its advantages are high output rate and high quality of products.

Description

Technical field: [0001] The invention belongs to the heavy oil lightening process in the petroleum processing process, and can also be used in the coal liquefaction process and the mixed processing process of coal and petroleum. Background technique: [0002] Currently, high-octane gasoline and high cetane diesel are produced using different processes: [0003] (1) Production of high-octane gasoline [0004] In China, the production of gasoline mainly relies on the catalytic cracking process, and about 70% of the gasoline comes from the catalytic cracking process. The catalytic cracking process includes the fluid catalytic cracking process with distillate oil as raw material and the heavy oil fluid catalytic cracking process with heavy oil as raw material, which are collectively referred to as catalytic cracking process. In the catalytic cracking process, acidic zeolite molecular sieves loaded with some rare earth elements are often used as catalysts, and some non-zeolite ...

Claims

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Application Information

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IPC IPC(8): C10G47/26
Inventor 周家顺阙国和
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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