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Method for co-producing high-quality liquid fuel and system for implementing method

A technology for liquid fuels and raw materials, which is applied in the preparation of liquid hydrocarbon mixtures, biological raw materials, hydrocarbon oil treatment products, etc. The effect of carbon content

Pending Publication Date: 2022-05-20
SYNFUELS CHINA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At present, the single indirect and direct coal liquefaction technology has achieved industrial production or commercial demonstration operation, and the staged liquefaction technology is still in the stage of small-scale or pilot-scale test. In the liquefaction process coupling, operation unit coupling, process energy efficiency, oil production and quality control, etc. still needs to be improved

Method used

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  • Method for co-producing high-quality liquid fuel and system for implementing method
  • Method for co-producing high-quality liquid fuel and system for implementing method
  • Method for co-producing high-quality liquid fuel and system for implementing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0158] Coal A was pulverized to <100 mesh (moisture content 12.36wt%), dehydrated and dried at 110°C for 0.5 hour to obtain dry coal powder as liquefaction feed. The residue coke from the residue slurry processing unit is pulverized as gasification feed. The heavy intermediate oil from the liquefaction separation / fractionation unit is mixed with the hydrogenated solvent oil from the solvent oil hydrogenation unit at a mass ratio of 6:4 as solvent oil.

[0159] Mix the liquefaction feed, solvent oil, and iron-based catalyst (see Example 1 of CN105363450B for specific composition) to obtain 1500 kg of liquefaction slurry with a solid content of 50 wt% (dry coal powder: solvent oil: iron in the catalyst = 100: 100:0.5, mass ratio); mix fresh hydrogen, circulating hydrogen and Fischer-Tropsch tail gas (volume ratio 10:60:30) as liquefaction reaction gas; in the slurry bed liquefaction reactor, liquefaction slurry and liquefaction reaction gas Under the conditions of 450°C, 4.5MPa...

Embodiment 2

[0167] Coal B and waste tires were crushed to below 100 mesh (water content 9.6wt%), dehydrated and dried at 110°C for 0.5 hours, as liquefaction feed (dry coal powder + dry waste tire powder), the catalyst was a nickel-containing additive 0.05 wt% of iron-based catalysts. The residual coke powder and coal powder from the residual slurry processing unit are used as gasification feed; the heavy intermediate oil and coal tar from the liquefaction separation / fractionation unit are mixed at a mass ratio of 1:1 as solvent oil.

[0168] Liquefied feed, solvent oil, iron-based catalyst (powdered FeOOH, additive component is 12wt% SiO 2 , 6wt%Al 2 o 3, 0.2wt% V and 0.5wt% Ni) mixed to make liquefied slurry 900kg of solid content 55wt% (coal powder: waste tire powder: heavy intermediate oil: coal tar: iron in the catalyst=45:10:35: 10:1, mass ratio). The recycled hydrogen and crude synthesis gas are mixed (volume ratio 4:1) as liquefied reaction gas. In the slurry bed liquefaction...

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Abstract

The invention relates to a method for co-producing high-quality liquid fuel by using a carbon-containing raw material and a system for implementing the method. According to the method, through the processes of pretreatment of the carbon-containing raw material, graded conversion of the raw material, graded upgrading of the product, classified preparation of the product, graded utilization of the liquefied residue slurry and the like, the oil product with good quality can be obtained with high energy efficiency, the yield of the product is high, and the variety regulation and control are flexible.

Description

technical field [0001] The invention belongs to the field of energy and chemical industry, and in particular relates to a method for co-producing high-quality liquid fuel by using carbon-containing raw materials and a system for implementing the method. Background technique [0002] On the one hand, China is rich in coal, poor in oil, and low in gas. The proportion of coal in China's primary energy production and consumption structure has remained at about 70% for a long time, of which 85% of coal is used through direct combustion. Direct combustion with high consumption and low efficiency emits a large amount of SO to the environment x , NO x , CO 2 And soot, causing China's air pollution mainly of soot type. As the environmental pollution caused by direct coal combustion is becoming more and more serious, the demand for clean liquid fuels is increasing year by year. [0003] On the other hand, fuel oil in today's society is mainly derived from petroleum, and petroleum ...

Claims

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Application Information

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IPC IPC(8): C10G69/12C10G69/00C10G1/00C10G2/00
CPCC10G69/123C10G69/12C10G69/00C10G2/30C10G1/00C10G1/002C10G2400/02C10G2300/10C10G2300/1011C10G2300/1003Y02P30/20
Inventor 杨勇郭强田磊朱效明王洪陶智超李永旺
Owner SYNFUELS CHINA TECH CO LTD