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Method for making clean fuels

A clean fuel and reaction product technology, applied in the petroleum industry, hydrotreating process, hydrocarbon oil treatment, etc., can solve the problems of difficulty in transformation and high cost, achieve the effect of process optimization and reduce the cost of primary investment and processing

Active Publication Date: 2009-06-24
SINOPEC LUOYANG PETROCHEM ENG CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In conventional hydrocracking units, it is becoming more and more difficult and costly to meet the product requirements only by upgrading the catalyst

Method used

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  • Method for making clean fuels
  • Method for making clean fuels

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Embodiment Construction

[0015] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The accompanying drawings are only drawn to illustrate the basic content of the present invention, and do not limit the scope of the present invention.

[0016] Such as figure 1 As shown, the hydrocracking reaction effluent 8 is heat-exchanged by the high-pressure heat exchanger 6 and enters the hot high-pressure separator 1 alone or together with the hydrocarbon oil 18 to be refined for gas-liquid separation. The hot high-pressure separator 1 is usually at a pressure of 5.0 Operate under the conditions of ~20.0MPa and temperature 200~400℃. The gas phase 9 of the hot high-pressure separator is a mixture of hydrogen, small molecule hydrocarbons and light oil, which passes through the refined catalyst bed arranged on the top of the hot high-pressure separator from bottom to top, and the usual range of liquid hourly space velocity (LHSV) is 0.1 ...

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Abstract

The invention provides a method for producing clean fuels, utilizing the relatively high temperature and pressure of the hot high-pressure separator in the existing hydrocracking process, and having the characteristics of a hydrogen-facing environment at the same time, through the upper part of the hot high-pressure separator Fill the refined catalyst bed or install a hydrofinishing reactor between the hot high-pressure separator and the cold high-pressure separator to refine the product of the hydrocracking unit and other refined hydrocarbon oils from outside the unit, with a set of hydrogenation The cracking unit can realize the effect of producing light and clean fuel products at the same time.

Description

technical field [0001] The invention belongs to the field of petroleum refining and relates to a method for producing clean fuel. Background technique [0002] With the strengthening of environmental awareness, the production and use of clean fuels has become a major development trend. Due to the use of hydrofining to produce clean fuel, which has the characteristics of high product yield, low pollution and no waste that is difficult to handle, hydrofining has become an important choice for refineries to improve product quality. Chinese patent CN1552812A discloses a deep desulfurization and dearomatization process for diesel oil. Hydrofining method is used to produce clean fuel. Due to the operation under hydrogen, high temperature and high pressure, the equipment investment and operation cost are high, which brings high cost to the refinery to produce clean fuel and reduces economic benefits. [0003] The hydrocracking unit is another important unit in the refinery. With ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/14
Inventor 李立权师敬伟
Owner SINOPEC LUOYANG PETROCHEM ENG CORP
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