Method for direct liquefaction and comprehensive utilization of ravens

A low-quality coal and direct technology, applied in chemical instruments and methods, preparation of liquid hydrocarbon mixtures, inorganic chemistry, etc., can solve problems such as high energy consumption, low efficiency, cumbersome process, etc., to reduce equipment requirements and energy consumption, The effect of improving resource utilization efficiency

Active Publication Date: 2008-10-08
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to obtain the final qualified product, whether it is a batch or continuous process, it includes solvent extraction, waxy solution filtration and concentration, solvent recovery, crude wax modification, refining and molding, etc., which has disadvantages such as cumbersome process, high energy consumption, and low efficiency.

Method used

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  • Method for direct liquefaction and comprehensive utilization of ravens
  • Method for direct liquefaction and comprehensive utilization of ravens

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Example 1: Ammonium molybdate 7w%, nickel nitrate 10w%, ferrous sulfate 15w%, iron sulfate 8w%, polysorbate 4w%, polysorbate monooleate 6w%, alkyl polyglycoside 3w% , and the rest is distilled water.

Embodiment 2

[0059] Example 2: dimer acid urea complexed lanthanum 5w%, ethylenediaminetetraacetic acid complexed iron 12w%, isooctanoic acid urea complexed tungsten 15w%, isocaprylic acid urea complexed molybdenum 3w%, polysorbate 5w% , 5w% of shrinkable sorbitan monooleate, 4w% of polyoxyethylene sorbitan oleate, and the rest are petroleum distillates at 280-320°C.

Embodiment 3

[0060] Example 3: 10w% ammonium tungstate, 10w% cobalt nitrate, 15w% iron nitrate, 8w% iron sulfate, 5w% polysorbate, 6w% polysorbate monooleate, polyoxypropylene polyoxyethylene glycerin Ether 4w%, glycerin 10w%, and the rest is distilled water.

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Abstract

The invention discloses a method of direct liquefaction of the lean coal and comprehensive utilization. The method includes that under mild condition, proper catalyst and hydrogen-donor solvent are used; the feed coal is processed with liquefaction reaction under the situation that the gas hydrogen is not adopted; the main product is liquid fuel and the by products include montan wax, resin and organic compounds with high values; meanwhile, the liquefaction generation water, the generation gas and the non-transformed residual coal can be used to produce liquid products; the liquid products can be processed with hydro-grading to obtain needed hydrogen; the method of direct liquefaction of the lean coal and comprehensive utilization not only can reduce the device requirement and the energy consumption of the coal liquefaction technique, but also can improve the resource utilization benefits of the lean coal greatly.

Description

technical field [0001] The invention relates to the technical field of coal chemical processing, in particular to a method for direct liquefaction and comprehensive utilization of low-quality coal. Background technique [0002] There are two types of liquefaction methods for producing liquid fuels from coal, indirect and direct. The indirect coal liquefaction method is to gasify coal to produce synthesis gas, perform F-T synthesis reaction under the action of catalysts such as iron, cobalt, and nickel to generate liquid products, and then refine the liquid products into qualified fuel products. The process of indirect liquefaction is complex, with large investment and high cost. The direct coal liquefaction method generally involves catalytic hydrogenation of coal and solvent oil under high temperature (400-500°C) and high-pressure (10.0-30.0MPa) conditions to generate liquid fuel products. The direct hydrogenation liquefaction method is simpler than the indirect method in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/06C10G45/00C01B3/00
Inventor 彭派
Owner CHINA PETROLEUM & CHEM CORP
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