A method and device for fluidized bed dry distillation of pulverized coal
A technology of fluidized bed and pulverized coal, which is applied in the direction of special dry distillation, direct heating dry distillation, petroleum industry, etc., can solve problems such as mutual influence, and achieve the effect of increasing production rate and processing capacity
Active Publication Date: 2016-09-14
SINOPEC LUOYANG PETROCHEM ENG CORP +1
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Problems solved by technology
[0005] The purpose of the present invention is to provide a method and device for fluidized bed carbonization of pulverized coal, so as to solve the problem of using a gas compressor to transport the high-temperature fluidized medium and The problem that gas heat carrier, combustion reaction and water gas reaction are carried out simultaneously in the same area and affect each other
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[0017] see figure 1 , the pulverized coal fluidized bed retort device of the present invention (referred to as retort device for short) is provided with fluidized bed retort reactor, retort semi-coke combustion and gasification reactor, and fluidized bed retort reactor is provided with pulverized coal raw material feed pipe 15. The dry distillation reactor is a bed type fluidized bed dry distillation reactor 9, and the shell of the bed type fluidized bed dry distillation reactor 9 includes upper and lower cylindrical shells and an inverted circle between the two shells. Mesa-shaped barrel. The bed-type fluidized bed dry distillation reactor 9 is provided with a first set of cyclone separators 8, including two cyclone separators connected in series, the diplegs of which extend into the upper part of the bed in the dry distillation dense phase section. The top of the bed-type fluidized bed dry distillation reactor 9 is provided with an oil and gas collection chamber 6 and an o...
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Abstract
The invention discloses a coal powder fluidized bed dry distillation method and device. The dry distillation method comprises the following steps: A. the pulverized coal raw material absorbs the heat generated by the combustion reaction in the gasification burner (11) in the pulverized coal raw material preheating pipe (12) to preheat; B. the pulverized coal raw material after preheating is Dry distillation reaction is carried out in the bed-type fluidized bed dry distillation reactor (9), generating oil gas and pulverized coal semi-coke, and the pulverized coal semi-coke is stripped out of entrained oil gas in the stripper (18); C. after stripping Pulverized coal semi-coke enters the gasification burner and undergoes combustion reaction with oxygen; D. Partially combusted pulverized coal semi-coke undergoes water gas reaction with water vapor in the riser gasification reactor (2) after step C; E. Step D The generated coal gas and high-temperature coal ash enter the coal ash gas separator (1) for gas-solid separation. The invention discloses a pulverized coal fluidized bed dry distillation device for realizing the above method. The invention can be used for dry distillation processing of various coal powders.
Description
technical field [0001] The invention belongs to the technical field of coal powder dry distillation, and relates to a coal powder fluidized bed dry distillation method and device. Background technique [0002] my country's rapidly growing demand for crude oil has driven the rapid growth of crude oil imports, and the increasing dependence on foreign countries has brought great hidden dangers to my country's energy security. The lack of oil and gas resources and the increase in demand have kept the cost of many petrochemical raw materials high. Coal chemical industry and petrochemical industry are mutually substitutable, and the development of new coal chemical industry can be a good supplement to petrochemical industry, which is very necessary. Coal chemical industry refers to the process of using coal as raw material and converting coal into gas, liquid and solid fuels and chemicals through chemical processing; it mainly includes coal gasification, liquefaction, dry distill...
Claims
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IPC IPC(8): C10J3/66C10J3/62C10J3/84C10J3/72C10B49/22C10B53/04C10B57/00
Inventor 樊麦跃汤海涛王文柯陈曼桥张亚西武立宪陈章淼
Owner SINOPEC LUOYANG PETROCHEM ENG CORP