Coal powder hydropyrolysis and gasification integrated system and treatment method thereof

A technology of hydropyrolysis and pulverized coal, which is applied in the field of coal chemical industry, can solve the problems of low heat utilization rate and complicated process, and achieve the effect of increasing utilization rate, improving yield and oil quality, and improving utilization efficiency

Inactive Publication Date: 2018-06-01
胜帮科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

CN102061187 A discloses a method for coupling coal hydropyrolysis and gasification. Although the method increases the tar yield and light component content, and obtains high value-added products, the process of the method is relatively complicated and the heat utilization rate is low. High, the process still needs to be improved

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  • Coal powder hydropyrolysis and gasification integrated system and treatment method thereof

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Experimental program
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Embodiment 1

[0055] This embodiment provides an integrated system of pulverized coal hydropyrolysis and gasification, and its connection schematic diagram is as follows figure 1 As shown, the system includes a feed unit, a reaction unit and a separation unit, the reaction unit includes a riser reactor 2 and a gasifier 7, and the separation unit includes a settler 3 and an oil-gas separation device 8; wherein, the The outlet of the riser reactor 2 is connected to the inlet of the settler 3, the bottom outlet of the settler 3 is connected to the inlet of the gasifier 7, and the gas outlet of the gasifier 7 is connected to the inlet of the riser reactor 2. The top outlet of the settler 3 is connected with the inlet of the oil-gas separation device 8 .

[0056] Wherein, the settler 3 comprises a primary settler 31 and a secondary settler 32; the outlet of the riser reactor 2 is connected to the inlet of the primary settler 31, and the top outlet of the primary settler 31 is connected to the T...

Embodiment 2

[0061] This embodiment provides a pulverized coal hydropyrolysis and gasification integrated system, the system includes a feed unit, a reaction unit and a separation unit, the reaction unit includes a riser reactor 2 and a gasifier 7, the The separation unit includes a settler 3 and an oil-gas separation device 8; wherein, the outlet of the riser reactor 2 is connected to the inlet of the settler 3, and the bottom outlet of the settler 3 is connected to the inlet of the gasifier 7, so The gas outlet of the gasifier 7 is connected with the inlet of the riser reactor 2, and the top outlet of the settler 3 is connected with the inlet of the oil-gas separation device 8.

[0062] Wherein, the settler 3 has one stage, and its built-in cyclone separator 4 is one, the outlet of the riser reactor 2 is connected with the inlet of the cyclone separator 4, and the top outlet of the cyclone separator 4 is separated from the oil and gas The inlet of device 8 is connected.

[0063] The fee...

Embodiment 3

[0066] This embodiment provides a method for integrating pulverized coal hydropyrolysis and gasification. The method is carried out using the system in Embodiment 1, and specifically includes the following steps:

[0067] (a) After mixing pulverized coal with a particle size of 0.4mm, syngas and hydrogen, a pyrolysis reaction occurs in the riser reactor 2. The reaction temperature is 650°C, the reaction pressure is 6.0MPa, and the reaction time is 5s. solution product;

[0068] (b) The pyrolysis product obtained in step (a) is subjected to gas-solid separation in the primary settler 31 and the secondary settler 32 respectively, and the gas phase product of the gained is carried out oil-gas separation in the oil-gas separation device 8 to obtain pyrolysis tar and pyrolysis gas;

[0069] (c) The powdered coke obtained in the gas-solid separation in step (b) is first cooled in the powdered coke cooler 5, and the cooling treatment temperature is 300°C, and then enters the gasifie...

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Abstract

The invention provides a coal powder hydropyrolysis and gasification integrated system and a treatment method thereof. The system comprises a feeding unit, a reaction unit and a separation unit, wherein the reaction unit comprises a lifting pipe reactor and a gasification furnace; the separation unit comprises a gas-solid separation device and an oil-gas separation device. According to the coal powder hydropyrolysis and gasification integrated system, coal powder hydropyrolysis and gasification are coupled, so that graded transformation and comprehensive utilization of raw coal are realized, and the yield of a pyrolyzed oil product and the quality of the oil product are improved; meanwhile, internal circulation of materials in the system is realized and no byproducts are generated; the utilization rate of the materials and energy is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of coal chemical industry, and relates to a pulverized coal hydropyrolysis and gasification integrated system and a processing method thereof. Background technique [0002] With the increasingly serious problems of energy shortage and environmental pollution, it has become a consensus to develop clean and efficient technologies for utilizing chemical raw materials. In the structure of chemical raw materials, coal accounts for more than half. Therefore, the development and promotion of clean coal technology, the realization of graded transformation of coal resources, and rational and effective utilization have become research hotspots. [0003] In the existing technology, the tar yield of coal pyrolysis technology is low, and the content of heavy components is high, which is not conducive to the subsequent processing of tar. At the same time, the price of powdered coke is low, and subsequent utilization is al...

Claims

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Application Information

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IPC IPC(8): C10J3/60C10J3/64
CPCC10J3/60C10J3/64
Inventor 荣先奎沈和平陈树群
Owner 胜帮科技股份有限公司
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