Method and system for producing gasoline blend oil by using C5 raffinate oil

A technology for raffinate oil and blended oil, which is applied in the treatment of hydrocarbon oil, petroleum industry, refined hydrocarbon oil, etc. It can solve the problem of single processing route of ethylene carbon five raffinate oil, achieve rich processing methods, save investment and operating costs , the effect of low sulfur content

Pending Publication Date: 2022-07-19
CHINA PETROLEUM & CHEM CORP
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method and system for producing gasoline blending oil from C5 raffinate in order to overcome the single processing route of ethylene C5 raffinate in refinery existing in the prior art

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  • Method and system for producing gasoline blend oil by using C5 raffinate oil
  • Method and system for producing gasoline blend oil by using C5 raffinate oil
  • Method and system for producing gasoline blend oil by using C5 raffinate oil

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Embodiment 1-5

[0071] This example is used to illustrate the method for producing gasoline blend oil using C5 raffinate provided by the present invention

[0072] According to the setting in Table 4, one route of circulating hydrogen is drawn from the S Zorb device, mixed with the C5 raffinate and part of the catalytic gasoline raw material, and then enters the pre-hydrogenation reactor to carry out the pre-hydrogenation reaction. The properties of the pre-hydrogenated material are as follows: As shown in Table 6, after the diolefins are converted into monoolefins, they are mixed with the remaining catalytic gasoline feedstock into the S Zorb unit for adsorption and desulfurization to obtain high-standard gasoline. The sulfur content, octane number, sulfur removal rate and Table 7 shows the refined gasoline octane loss relative to the catalytic gasoline feedstock.

[0073] The output of the above-mentioned pre-hydrorefined materials after mixing is about 600,000 tons / year, and then enters th...

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Abstract

The invention relates to the field of petrochemical industry, in particular to a method and a system for producing gasoline blend oil by using C5 raffinate oil. The method comprises the following steps: mixing C5 raffinate oil, hydrogen and a part of catalytic gasoline, carrying out pre-hydrotreating on the obtained mixed material to convert alkadiene in the mixed material into monoolefine, mixing the pre-hydrotreated material with the residual part of catalytic gasoline, and carrying out S Zorb desulfurization. According to the invention, a pre-hydrotreating system is added in front of an S Zorb device, dialkene in ethylene C5 raffinate oil is converted into monoolefine, the monoolefine and catalytic gasoline enter the S Zorb device together for adsorption desulfurization, high-grade clean gasoline blend oil is produced, and the processing route of C5 olefin components is broadened. The method is low in project implementation investment, short in construction period and low in operation cost, and has better demonstration and popularization effects.

Description

technical field [0001] The invention relates to the field of petrochemical industry, in particular, to a method and system for producing gasoline blend oil by utilizing C5 raffinate oil. Background technique [0002] C5 raffinate oil, the by-product of ethylene, is rich in diolefins with high economic value. As a comprehensive utilization technology of C5, there are relatively mature patented technologies for the subdivision of C5 diolefins. The useful monomers are separated, mainly diolefins and isopentene. The current technology to improve the comprehensive utilization rate of C5 basically adopts this idea. However, the ethylene C5 raffinate after the use of this process technology still contains relatively high diolefins. At present, the conventional processing route is hydrogenation route. After hydrogenation, it is used as ethylene raw material to produce various useful monomers in the chemical industry of high quality. When the chemical industry market is sluggish, ec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/06C10G45/32C10G25/00
CPCC10G67/06C10G45/32C10G25/003C10G2400/02
Inventor 施俊林胡鸿飞张达孟锐
Owner CHINA PETROLEUM & CHEM CORP
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