Method for producing oil product by corefining coal and oil

A co-refining and oil product technology, which is applied in the fields of hydrocarbon oil treatment products, petroleum industry, hydrocarbon oil treatment, etc., can solve the problem of low yield of liquefied oil, reduce the depth of hydrogenation, reduce investment and operating costs, and simplify the process The effect of the process

Active Publication Date: 2016-05-11
上海竣铭化工工程设计有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the method is simple in process and low in operating cost, the yield of liquefied oil is low

Method used

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  • Method for producing oil product by corefining coal and oil
  • Method for producing oil product by corefining coal and oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1) Mix catalytic cracking oil slurry, coal powder below 100 mesh, and catalyst to prepare oil-coal slurry. The catalytic cracking oil slurry and coal powder are mixed in a ratio of 1:1, and the amount of catalyst added is 7.5% of the mass of coal powder. %;

[0043] (2) Mix the oil-coal slurry described in step (1) with hydrogen, and after being preheated by the preheater, enter the suspension bed reactor, and the reaction temperature is 400°C, the reaction pressure is 6.5MPa, and the volume space velocity is 0.5h -1 1. Hydrogenation reaction is carried out under the condition of hydrogen oil volume ratio of 1200;

[0044](3) The reaction product described in step (2) is separated into a high-temperature gas phase material and a high-temperature liquid phase material through a hot high-pressure separator; after the high-temperature gas phase material is cooled, hydrogen-rich gas, light oil and water are separated; the high-temperature liquid phase material is After de...

Embodiment 2

[0051] (1) Mix catalytic cracking oil slurry, coal powder below 100 mesh, and catalyst to prepare oil-coal slurry. The catalytic cracking oil slurry and coal powder are mixed in a ratio of 2:1, and the amount of catalyst added is 15% of the mass of coal powder. %;

[0052] (2) Mix the oil-coal slurry described in step (1) with hydrogen, and after being preheated by the preheater, enter the suspension bed reactor, and the reaction temperature is 400°C, the reaction pressure is 11MPa, and the volume space velocity is 0.5h -1 1. Hydrogenation reaction is carried out under the condition of hydrogen oil volume ratio of 1200;

[0053] (3) The reaction product described in step (2) is separated into a high-temperature gas phase material and a high-temperature liquid phase material through a hot high-pressure separator; after the high-temperature gas phase material is cooled, hydrogen-rich gas, light oil and water are separated; the high-temperature liquid phase material is After dec...

Embodiment 3

[0060] (1) Coal tar, pulverized coal below 100 meshes and a catalyst are mixed and prepared into an oil-coal slurry, and the coal tar and pulverized coal are mixed in a ratio of 2:1, and the amount of the catalyst added is 15% of the pulverized coal quality;

[0061] (2) Mix the oil-coal slurry described in step (1) with hydrogen, and after being preheated by the preheater, enter the suspension bed reactor, and the reaction temperature is 400°C, the reaction pressure is 8MPa, and the volume space velocity is 0.5h -1 1. Hydrogenation reaction is carried out under the condition of hydrogen oil volume ratio of 1200;

[0062] (3) The reaction product described in step (2) is separated into a high-temperature gas phase material and a high-temperature liquid phase material through a hot high-pressure separator; after the high-temperature gas phase material is cooled, hydrogen-rich gas, light oil and water are separated; the high-temperature liquid phase material is After decompressi...

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Abstract

The invention relates to an oil product production method, particularly a method for producing an oil product by corefining coal and oil. The method comprises the following steps: mixing coal powder, heavy oil and a catalyst to prepare an oil coal slurry, mixing with hydrogen gas, preheating, sending into a coal-oil corefining reactor, reacting, separating hydrogen-rich gas, light oil, water, crude oil, solvent extracted oil and solid residues from the reaction products, sending the hydrogen-rich gas, light oil and crude oil into a hydrogenation modification unit to produce gasoline, diesel and other oil products, and circulating the solvent extracted oil back to an oil coal slurry preparation unit as heavy oil to prepare the oil coal slurry, wherein the solid residues can be used sold as semicoke and can also be used for preparing hydrogen gas. The method has the advantages of simple technique, mild reaction conditions, high oil product yield, no need of hydrogenation solvent circulation, low investment and the like.

Description

technical field [0001] The invention relates to an oil product production method, in particular to a method for co-refining coal and oil to produce oil products. Background technique [0002] Coal direct liquefaction and coal and oil co-refining technology are two important areas of clean coal technology. The direct coal liquefaction process is to mix pulverized coal with circulating solvent and react with hydrogen under certain temperature and pressure conditions, so that the organic matter of coal can be directly converted into liquefied oil. Then through desulfurization and denitrification, the quality of liquefied oil is further improved, so that the product can be processed in general refineries to produce transportation fuel and chemical products. The advantage of direct coal liquefaction is high oil yield and thermal efficiency; the main disadvantage is the harsh operating conditions of the hydrogenation process. The coal and oil co-refining technology is a coal and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/14C10G1/06
CPCC10G1/06C10G67/14C10G2300/708C10G2400/02C10G2400/04
Inventor 韩保平冯光平邢宪军
Owner 上海竣铭化工工程设计有限公司
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