A cascade recovery device and method for oil in oily dust-containing gas
A cascade recovery and gas technology, which is applied in the field of cascade recovery devices for oil products in oily and dusty gases, can solve the problems of high energy consumption, large amount of waste water, complex technical devices, etc., to ensure gas cleanliness and high yield cascade Recycling, the effect of improving oil recovery efficiency
Active Publication Date: 2021-01-15
SHAANXI YANCHANG PETROLEUM GRP
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Problems solved by technology
This process is difficult to recover the oil and gas components in the oily dust-containing gas, and the device technology is complicated, the energy consumption is high, the amount of waste water is large, and the long-term operation is difficult
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[0036] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.
[0037] Such as figure 1 The cascade recovery device for oil in oily dust-containing gas of the present invention includes a quenching purification unit, a variable pressure coke locking unit, a tar flash concentration unit, a heavy tar residue liquid-solid separation unit, a tar fractionation recovery unit, and a gas-liquid separation recovery unit .
[0038] The quenching and purifying unit comprises a quenching and purifying tower 2 and a heavy tar conveying device 7 and a heat recovery device 8 at the bottom of the quenching and purifying tower, which are communicated with the outlet of the lower part of the quenching and purifying tower 2 in sequence, and the operating state switching connected with the upper outlet of the quenching and purifying tower 2 Valve I 9 and operating st...
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The invention discloses a stepped recovery device and method for oil products in gas containing oil dust. According to the design, the recovery device is provided with a quenching purification unit, apressure-variable tar locking unit, a tar flash-evaporation concentration unit, a heavy tar residue liquid-solid separation unit, a tar fractionation recovery unit and a gas-liquid separation and recovery unit. The stepped recovery of the oil products in the gas containing the oil dust is achieved by means of oil washing, flash evaporation, rectification, water washing and other technological approaches; dust, NOx, sulfur compounds and heavy metal elements in the oil gas are removed. The recovery and gas cleanliness of the products with a high additional value in the gas containing the oil dust are ensured to the greatest extent, and the problem about how to achieve efficient stepped recovery and purification of the oil products in the gas containing the oil dust, which has long plagued the energy and chemical industry, is solved.
Description
technical field [0001] The invention relates to the field of energy and chemical industry, in particular to a cascade recovery device and method for oil in oily dust-containing gas. Background technique [0002] Modern clean coal technology, due to the different types of technology, the composition of raw coal gas is often different. In the gasification process coupled with pyrolysis and gasification, raw coal gas often contains coal tar vapor, small particle size coke powder, etc. How to efficiently recover the coal tar vapor in raw coal gas is the key to improving the overall economic benefits of the device. At the same time, modern coal gasification technology is often combined with gas turbines to form an integrated gasification combined cycle (IGCC) system to produce electricity, steam, and coal-based chemicals. Gas turbines and fine coal chemical production units have high requirements on the quality and cleanliness of gas. Unqualified gas often accelerates the aging ...
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IPC IPC(8): C10G5/00C10G5/06C10G5/02
CPCC10G5/00C10G5/02C10G5/06
Inventor 王宁波杨会民吴升潇姚晓虹张月明张健米建新孔少亮靳皎杨帆
Owner SHAANXI YANCHANG PETROLEUM GRP