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Method for producing synthesis gas with carbon powder and natural gas/methane as raw materials

A technology for natural gas and synthesis gas, which is applied in the gasification of granular/powdered fuel, carbonization of gas, and the manufacture of combustible gas, which can solve problems such as poor market prospects

Active Publication Date: 2015-06-10
THE NORTHWEST RES INST OF CHEM IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Ouyang Chaobin, Institute of Process Engineering, Chinese Academy of Sciences, et al. ("Natural Gas-Coal Co-Gasification New Technology for Preparation of Syngas") conducted theoretical and experimental studies on the co-gasification of coal-methane in a fixed-bed gasifier, confirming that the coal-methane The mechanism of co-gasification of natural gas is reasonable and feasible; Fang Yitian and others carried out research on the technical direction of co-gasification of coal-methane fluidized bed in CN1190475C, title of invention "method for co-gasification of fluidized bed coal and methane-rich fuel gas to produce synthesis gas" In addition, Anhui University of Science and Technology ("Analysis of Coal and Natural Gas Co-Gasification Process Technology for Preparation of Syngas") also conducted scientific research on coal-methane co-gasification process from different angles and levels, and achieved a lot of research results. However, these research contents and patented technologies are only limited to fixed bed and fluidized bed, and fixed bed and fluidized bed gasification technologies are currently backward coal gasification technologies with poor market prospects

Method used

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  • Method for producing synthesis gas with carbon powder and natural gas/methane as raw materials
  • Method for producing synthesis gas with carbon powder and natural gas/methane as raw materials
  • Method for producing synthesis gas with carbon powder and natural gas/methane as raw materials

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Experimental program
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Embodiment 1

[0087] Embodiment 1: The present invention uses carbonaceous powder and natural gas / methane as raw material to produce synthesis gas

[0088] The implementation steps of this embodiment are as follows:

[0089] The implementation process of this embodiment is as attached figure 1 shown.

[0090] The coal powder used in this example adopts the industrial analysis method of coal GB / T212-2008, the calorific value measurement method of coal GB / T213-2008, the measurement method of total moisture in coal GB / T211-2007, the carbon in coal and Method for Determination of Hydrogen GB / T476-2008, Method for Analysis of Coal Ash Composition GB / T1574-2007, Method for Determination of Total Sulfur in Coal GB / T214-2007, Method for Determination of Coal Grindability Index by Hardgrove Method GB / T2565-2014, Determination Method of Arsenic in Coal GB / T3058-2008, Determination Method of Chlorine in Coal GB / T3558-1996 and other standard methods described in national standards, natural gas usin...

Embodiment 2

[0110] Embodiment 2: The present invention uses carbonaceous powder and natural gas / methane as raw material to produce synthesis gas

[0111] The implementation steps of this embodiment are as follows:

[0112] The implementation mode of this example is the same as that of Example 1, except that this example uses the coal powder, methane, oxygen and superheated steam listed in Table 7-10, and carries out co-processing under the conditions of a temperature of 1500°C and a pressure of 10.0MPa. gasification reaction.

[0113] Table 7: Coal powder parameters

[0114]

[0115] Table 8: Coal Quality Data

[0116]

[0117] Table 9: Methane Gas Feedstock Parameters

[0118] components

[0119] Table 10: 99.6% Oxygen Parameters

[0120] name

[0121] Table 11: Superheated Steam Parameters

[0122] name

[0123] Wherein oxygen / superheated steam=1:0.25.

[0124] The composition of the co-gasification product is listed in the following table 12, w...

Embodiment 3

[0128] Embodiment 3: the present invention uses carbonaceous powder and natural gas / methane as raw material to produce synthesis gas

[0129] The implementation steps of this embodiment are as follows:

[0130] The implementation of this example is the same as that of Example 2, and the coal powder, methane, oxygen and superheated steam used in this example are also the same as those of Example 2, except that the co-gasification is carried out under the conditions of temperature 1500°C and pressure 1.0MPa Reaction, wherein oxygen / superheated steam=1:0.25.

[0131] The composition of the co-gasification product is listed in the following table 12, wherein the synthesis gas is composed of H 2 , CO, CO 2 、H 2 S, COS, CH 4 , N 2 , Ar composition.

[0132] Table 13: Co-gasification product composition

[0133] components

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Abstract

The invention relates to a method for producing synthesis gas with carbon powder and natural gas / methane as raw materials. The method comprises the steps that carbon powder, natural gas / methane and gasifying agents are subjected to co-gasification reaction at the temperature of 1200-1500 DEG C and the pressure of 1.0-10.0 MPa, the resultant of reaction is subjected to chilling and heat exchange through a cooling system, solid ash is drained to the outside, the synthesis gas product is subjected to ash removal and cooling processing through a Venturi scrubber and a wet ash removal tower, high-concentration synthesis gas is obtained, the volume content of CO+H2 in the synthesis gas is 85.0-95.0%, the content of H2 is 43.0-68.0%, and carbon black water drained from a reaction furnace and the bottom of the wet ash removal tower is drained to a black water treatment workshop section to be treated. The method is wide in range of raw materials, large in production capacity, clean, environmentally friendly, and suitable for multi-line production of industrial large-scale raw material gas preparation.

Description

【Technical field】 [0001] The invention belongs to the technical field of energy chemical industry. More specifically, the present invention relates to a method for producing synthesis gas using carbonaceous powder and natural gas / methane as raw materials. 【Background technique】 [0002] Carbon resources refer to coal, biomass, municipal waste and other natural resources and domestic waste containing carbon substances; [0003] Carbonaceous powder refers to a powdery raw material for industrial production with a certain particle size distribution processed from carbonaceous resources, and coal is the most common and easily available carbonaceous powder raw material. The situation that the world is rich in coal, poor in oil and gas will exist for a long time. Coal is the main energy source in my country, accounting for about 70% of the primary energy structure. For a long time in the future, the status of coal as the main energy source will not change. The coal industry is a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/48C10J3/72C10J3/74C10J3/84C10J1/20
Inventor 崔意华徐红东林益安刘军杨云龙赵蒙王锦曾梅门长贵贺根良徐宏伟
Owner THE NORTHWEST RES INST OF CHEM IND
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