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Integrated device and method for preparing oil product and synthetic gas from fine coal

An integrated device and synthesis gas technology, which is applied in the petroleum industry, the combination of fuel pre-dry distillation, the preparation of liquid hydrocarbon mixtures, etc., can solve the problems of large environmental pollution, high dust content of tar and gas, and low tar yield, etc. To achieve the effect of shortening the contact time

Inactive Publication Date: 2014-12-17
刘国海 +2
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Problems solved by technology

[0015] The purpose of the present invention is to provide a method that can solve the problems of high tar and coal gas dust content, low tar yield, and large environmental pollution in the prior art, and provides a method for pyrolysis of carbon-containing raw materials and separation of pyrolysis products. Integrated device and method for producing high-quality liquid products and synthetic gas from pulverized coal to oil and synthetic gas

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  • Integrated device and method for preparing oil product and synthetic gas from fine coal

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Embodiment Construction

[0071] The present invention will be described in further detail below in conjunction with the accompanying drawings. .

[0072] see figure 1 , including an integrated reaction system, a recycling system and a deep separation and purification system24;

[0073] The integrated reaction system includes a gasification section 7 and a fast pyrolysis section 4, wherein the gasification section 7 communicates with the fast pyrolysis section 4 through a high-temperature gas pipeline 5 and an entrained particle pipeline 6, and the raw material inlet of the fast pyrolysis section 4 The coal feed pipeline 3 is connected with the feed system 2, and a solid circulation channel 18 is opened on the gasification section 7, and an outlet of the fast pyrolysis section 4 is connected with the solid circulation channel 18 through the circulation particle pipeline 16, and the gasification section 7. The lower end is also communicated with the mixed gas of oxygen 20, air 28 and steam 21 through ...

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Abstract

The invention discloses an integrated device and method for preparing an oil product and synthetic gas from fine coal. The integrated device comprises an integrated reaction system, a cycle feeding-back system and a deep-separation purification system. The integrated reaction system comprises a gasification section and a fast pyrolysis section. The gasification section is an oxygen or air blast turbulent flow fluidized bed gasification furnace. Bed layer height and density are not kept by a low fluidization speed but by a high air-flow speed and a high solid cycle speed. The gasification section utilizes carbon obtained by the fast pyrolysis section. Synthetic gas produced by the gasification section and solid particles carried by the synthetic gas are used as heat sources of the fast pyrolysis section. The fast pyrolysis section is a cycle fluidized bed reactor. The cycle material in the fast pyrolysis section and gas and solid particles in the gasification section are mixed, and then temperatures of the two material flows are basically approximate to the heat-stage temperature so that just added coal does not contact with high-temperature gas and particles from the gasification furnace in the heat stage.

Description

technical field [0001] The invention relates to an integrated device and method for producing oil and synthesis gas from carbon-containing raw materials, in particular to an integrated device and method for producing oil and synthesis gas from pulverized coal. Background technique [0002] Coal to oil is a very important chemical process. So far, although there have been new proven reserves of oil, as a conventional fossil energy, the proven reserves of coal are still more abundant than oil. This is very important for countries with rich coal reserves but insufficient oil reserves. Direct or indirect coal liquefaction technology is a capital-intensive industry, and there are disadvantages such as low coal conversion efficiency, complex process, relatively low reliability and long construction period. In stark contrast, pyrolysis technology can extract 30% and 70% of tar from coal and biomass respectively, with high process efficiency and low cost. [0003] One of the effic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/58C10G1/02
Inventor 刘国海李大鹏王宁波
Owner 刘国海
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