Lightweight tar recovery apparatus
A recovery device, a technology for light tar, applied in the directions of steam condensation, chemical instruments and methods, separation methods, etc., can solve problems such as inability to separate out, and achieve the effects of simple operation, simple process flow, and high operational safety.
Inactive Publication Date: 2013-08-28
SHAANXI HANGXING ENERGY TECH
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Problems solved by technology
Heavy tar and light tar with a higher dew point are separated and collected from the tail gas after two-stage water washing and a first-stage electric tar collector, but light tar with a lower dew point still exists in the gas phase in the tail gas when the dew point is below 40°C , can't condense into oil mist, so it can't be separated from the tail gas by water washing and electric tar catcher. If you want to recover the low dew point gas phase oil in the tail gas, the temperature of the tail gas must be lowered below the dew point
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Embodiment Construction
[0017] Now in conjunction with embodiment, accompanying drawing, the present invention will be further described:
[0018] The evaporator adopted in this embodiment is the invention scheme of the utility model patent whose patent application number is 201320240607.8, including 18. supporting base plate; 26. The lower right end steel pipe, 23. The main body of the evaporator; 24. The flange connecting the main body of the evaporator and the water container; 25. Connecting bolts; 27. Outlet pipe, 28. Flange; Among them: 19, 21, 22, 26 The volume of No. parts is the water capacity; the lower connecting steel pipe 21 at the left end and the lower connecting steel pipe 26 at the right end are connected with the bottom steel pipe 19, the middle connecting steel pipe 22 is connected with the lower connecting steel pipe 21 at the left end and the lower connecting steel pipe 26 at the right end and form an H-shaped structure, the lower connecting steel pipe 21 at the left end and the lo...
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The invention relates to a lightweight tar recovery apparatus. Refrigerating cycle is used to cool a tail gas in order to condensate lightweight oil in the tail gas, and gas-liquid separation is carried out to recover the lightweight oil. The gas inlet of a vacuum water loop set is connected with the top gas outlet of an evaporator, the bottom water outlet of the evaporator is connected with the water inlet of a circulating water pump, the water outlet of the circulating water pump is connected with the water inlet of an efficient heat exchanger, and the water outlet of the efficient heat exchanger is connected with the water inlet of the evaporator to form steam refrigeration cycle. A coal gas pipeline is connected with the gas inlet of the efficient heat exchanger, the gas outlet of the efficient heat exchanger is connected with the gas inlet of a free oil collector, and the gas outlet of the free oil collector is connected with an oil-water separator. All apparatuses are connected with flanges through pipelines, and the pipelines in the attached figure shown in the specification are provided with throttle valves. The above scheme allows the heat exchange with the high-temperature tail gas to be carried out in the efficient heat exchanger to cool the tail gas in order to condensate the lightweight oil in the tail gas, so the lightweight oil is recovered.
Description
technical field [0001] The invention relates to a light tar recovery device, which is a light tar recovery device for industries such as energy, coal chemical industry and petrochemical industry. Background technique [0002] After dry distillation of oil shale, the tail gas produced contains heavy tar and light tar. Heavy tar and light tar with a higher dew point are separated and collected from the tail gas after two-stage water washing and a first-stage electric tar collector, but light tar with a lower dew point still exists in the gas phase in the tail gas when the dew point is below 40°C , can't condense into oil mist, so it can't be separated from the tail gas by water washing and electric tar catcher. If you want to recover the low dew point gas phase oil in the tail gas, the temperature of the tail gas must be lowered below the dew point. Contents of the invention [0003] technical problem to be solved [0004] In order to avoid the deficiencies of the prior ar...
Claims
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IPC IPC(8): B01D5/00
Inventor 王天靖陈钰铭白佳佳吴梓旭杨珺
Owner SHAANXI HANGXING ENERGY TECH