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Method for producing synthetic oil from dry distillation gas through autonomous carbon supplementing

A technology for dry distillation of coal gas and synthetic oil, which is applied in the preparation of liquid hydrocarbon mixtures and the petroleum industry, etc., can solve the problems of the promotion of difficult coal dry distillation enterprises, complicated processes, large one-time investment, etc., and achieves improvement of environmental quality, simple process, The effect of low investment in equipment

Active Publication Date: 2014-06-25
科瑞康洁净能源技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The above-mentioned existing technologies are complicated in process and large in one-time investment, so it is difficult to popularize them in coal dry distillation enterprises in my country

Method used

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  • Method for producing synthetic oil from dry distillation gas through autonomous carbon supplementing
  • Method for producing synthetic oil from dry distillation gas through autonomous carbon supplementing
  • Method for producing synthetic oil from dry distillation gas through autonomous carbon supplementing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0090] Carry out a kind of method that is raw material through self-replenishing carbon to produce synthetic oil with dry distillation coal gas, the specific steps of its described method are as follows:

[0091] Raw limestone ore composition (wt%): CaO 54.3%, burning loss rate 42.7%, impurity 3.0%.

[0092] Composition of raw materials into the furnace coal (wt%): The furnace coal is composed of 30% lean coal, 35% 1 / 3 coking coal, 20% fat coal and 15% main coking coal; its quality index (wt% ): V adf 30.0%, A d 13.5%, FC d 60.6%, S t,d 0.67%, cohesion index G=74, fineness (≤3mm)=73.6%.

[0093] Carbon replenishment method: the coal into the furnace is tested in a 40kg small coke oven (the furnace charge is isolated from the air and continuously heated for 24 hours, the temperature of the center of the furnace charge reaches 1100°C, and then it is released from the furnace, and it is cooled to room temperature after coke quenching): the gas production rate of the furn...

Embodiment 2

[0102] Dolomite ore composition (wt%): CaO 30.4%, MgO 21.7%, burning loss rate 47.4%, impurity 0.46%.

[0103] The furnace coal is composed of 30% lean coal, 35% 1 / 3 coking coal, 20% fat coal and 15% main coking coal; its quality index (wt%): V adf 30.0%, A d 13.5%, FC d 60.6%, S t,d 0.67%, cohesion index G=74, fineness (≤3mm)=73.6%.

[0104] The coal into the furnace was tested in a 40kg small coke oven (the charge was continuously heated for 20 hours in isolation from the air, and the center temperature of the charge reached 1050°C before it was released from the furnace, and it was cooled to room temperature after coke quenching): the gas production rate of the charge into the furnace was 353.4 Nm 3 / t; In dry distillation gas before adding carbonate carbon replenishing raw materials: H 2 57.5%, CH 4 24.5%, CO7.5%, CO 2 2.8%, the rest is N 2 、C m h n , O 2 Wait. CO 2 The conversion ratio is calculated as 0.55, and the hydrogen-to-carbon ratio R before alkane co...

Embodiment 3

[0114] Dolomite ore composition (wt%): CaO 30.4%, MgO 21.7%, burning loss rate 47.4%, impurity 0.46%.

[0115] The furnace coal is composed of 30% lean coal, 35% 1 / 3 coking coal, 20% fat coal and 15% main coking coal; its quality index (wt%): V adf 30.0%, A d 13.5%, FC d 60.6%, S t,d 0.67%, cohesion index G=74, fineness (≤3mm)=73.6%.

[0116] The coal into the furnace was tested in a 40kg small coke oven (the charge was continuously heated for 15 hours without air, and the center temperature of the charge reached 950°C before it was released from the furnace, and it was cooled to normal temperature after coke quenching): the gas production rate of the charge into the furnace was 353.4 Nm 3 / t; In dry distillation gas before adding carbonate carbon replenishing raw materials: H2 54.5%, CH 4 25.5%, CO10.7%, CO 2 3.7%, the rest is N 2 、C m h n , O 2 Wait. CO 2 The conversion ratio is calculated as 0.55, and the hydrogen-to-carbon ratio R before alkane conversion is ca...

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Abstract

The invention relates to a method for producing synthetic oil from dry distillation gas through autonomous carbon supplementing. The method comprises the steps of adding a carbonate carbon supplementing raw material, of which the granularity is not greater than 80 meshes, into furnace charging coal proportionally, mixing, then, loading the mixture to a dry distillation furnace for heating, then, quenching to cool to normal temperature, then, screening, so as to obtain solid clean fuel, and enabling produced CO2 and CO to directly enter the dry distillation gas, so as to be matched with superfluous H2, thereby realizing the aim of carbon supplementing. According to the method disclosed by the invention, a carbonate mineral is directly added into the dry-distillation furnace charging coal, and the CO2 and CO produced due to thermal decomposition are applied to the carbon supplementing of the dry distillation gas; the method has the characteristics of rich source of raw materials, simple process flow, small equipment investment, low carbon supplementing cost, good economical efficiency and the like, and can be widely applied to the project of comprehensive utilization of high and medium-temperature dry distillation gases.

Description

technical field [0001] The invention relates to a method for producing synthetic oil, in particular to a method for producing synthetic oil by self-supplementing carbon by using dry distillation gas as a raw material. Background technique [0002] Synthetic oil is a clean and efficient liquid fuel with high added value produced by Fischer-Tropsch synthesis technology, and it is an excellent substitute for petroleum products. The most important advantage of synthetic oil is that it does not contain non-ideal components such as sulfur, nitrogen, nickel impurities, and aromatics. It is a clean fuel and fully meets the strict requirements of modern engines and increasingly stringent environmental regulations. Converting dry distillation gas into synthetic oil through the F-T process has opened up a new way for the production of clean fuels, which has important strategic significance for alleviating the pressure on national oil imports and ensuring energy security. [0003] Coal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G2/00
Inventor 杜文广刘守军张智聪上官炬杨颂
Owner 科瑞康洁净能源技术有限公司
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