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Catalytic coal gasification method

A coal catalytic gasification and catalyst technology, which is applied in gasification process, granular/powder fuel gasification, petroleum industry, etc., can solve the problems of small test device, efficiency to be improved, and difficulty in continuous feeding.

Inactive Publication Date: 2018-05-11
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This coal gasification technology directly gasifies and shortens the reaction path of coal gasification, but the efficiency of direct synthesis of methane from coal needs to be improved
During the test, according to the change of the test conditions, the furnace was dismantled and loaded many times, and the test device was small, so it was difficult to realize continuous feeding

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The fluidized bed reactor comprises an air inlet 14, a distribution plate 16, a reactor inner cylinder 18, an air inlet 14, an air outlet 19, and a metal baffle 20; the air inlet 14 is positioned at the lower end of the reactor inner cylinder 18, and the outlet The gas port 19 is positioned at the upper end of the reactor inner cylinder 18, and the metal baffle 20 is positioned at the outlet end of the fluidized bed reactor 4; the upper part of the fluidized bed reactor 4 is thicker and the lower part is thinner, and the diameter ratio of the upper thick diameter and the lower thin diameter is 2: 1. The height ratio is 1:4. There is an insulating layer 15 and a heating block 17 outside the inner cylinder 18 of the reactor, and a slag outlet 13 is provided at the bottom of the inner cylinder of the reactor, and the slag outlet 13 is connected with the distribution plate 16 .

[0025] The raw gas water passes through the water inlet and vaporizer, mixes with the carrier g...

Embodiment 2

[0027] The fluidized bed reactor comprises an air inlet 14, a distribution plate 16, a reactor inner cylinder 18, an air inlet 14, an air outlet 19, and a metal baffle 20; the air inlet 14 is positioned at the lower end of the reactor inner cylinder 18, and the outlet The gas port 19 is positioned at the upper end of the reactor inner cylinder 18, and the metal baffle 20 is positioned at the outlet end of the fluidized bed reactor 4; the upper part of the fluidized bed reactor 4 is thicker and the lower part is thinner, and the diameter ratio of the upper thick diameter and the lower thin diameter is 2: 1. The height ratio is 1:4. There is an insulating layer 15 and a heating block 17 outside the inner cylinder 18 of the reactor, and a slag outlet 13 is provided at the bottom of the inner cylinder of the reactor, and the slag outlet 13 is connected with the distribution plate 16 .

[0028] The raw gas water passes through the water inlet and vaporizer, mixes with the carrier g...

Embodiment 3

[0030] The fluidized bed reactor comprises an air inlet 14, a distribution plate 16, a reactor inner cylinder 18, an air inlet 14, an air outlet 19, and a metal baffle 20; the air inlet 14 is positioned at the lower end of the reactor inner cylinder 18, and the outlet The gas port 19 is positioned at the upper end of the reactor inner cylinder 18, and the metal baffle 20 is positioned at the outlet end of the fluidized bed reactor 4; the upper part of the fluidized bed reactor 4 is thicker and the lower part is thinner, and the diameter ratio of the upper thick diameter and the lower thin diameter is 2: 1. The height ratio is 1:4. There is an insulating layer 15 and a heating block 17 outside the inner cylinder 18 of the reactor, and a slag outlet 13 is provided at the bottom of the inner cylinder of the reactor, and the slag outlet 13 is connected with the distribution plate 16 .

[0031]The raw gas water passes through the water inlet and vaporizer, mixes with the carrier ga...

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Abstract

Belonging to the technical field of catalytic coal gasification, the invention provides a catalytic coal gasification method. According to the method, the pressure difference of a fluidized bed reactor is controlled to realize batch feeding, temperature programming is utilized to adjust the temperature to a reactor temperature, maintaining a constant temperature till complete pyrolysis of a samplein a bed layer, water vapor or hydrogen is introduced to start reaction, then the reacted gas passes through a cyclone separator, a gas-liquid separator and a dryer, the volume of the product gas ismetered through a wet type flowmeter, Agilent chromatograph is utilized for on-line analysis of the product gas composition, the conversion rate for gasification conversion of coal into the gas phaseproduct is 95%, and the cumulative production of methane is 11.4mmolg<-1>. The technology can realize batch feeding of devices, reduces the number of times of furnace dismantling and assembly in test,optimizes the process, reduces the cost and improves the catalytic gasification efficiency.

Description

technical field [0001] The patent of the present invention relates to a method for coal catalytic gasification. Background technique [0002] With the continuous increase of coal production and consumption in our country, the efficient and clean utilization of coal has become an important topic for our country's researchers. Coal gasification technology is one of the key technologies for the efficient and clean utilization of coal in the future, and it provides an important guarantee for my country's energy sustainable development strategy. As the core technology and leading technology of clean coal utilization technology, coal catalytic gasification technology has the advantages of clean and efficient utilization of coal, shortening the process flow, and improving the economy of industrial production, which has attracted close attention of researchers at home and abroad. [0003] However, coal gasification technology has hindered its further promotion and application due t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/56
CPCC10J3/56C10J2300/093C10J2300/0973C10J2300/0986
Inventor 朱艳芳王金利吴琳徐本刚吴学其黄先亮张杰蔡进魏士新
Owner CHINA PETROLEUM & CHEM CORP