Gas liquor purification treatment system after coal gasification
A technology for purification treatment and coal gasification, which is applied in oxidation water/sewage treatment, gaseous discharge wastewater treatment, water/sewage treatment, etc. Effects of pollution, reduced consumption, and reduced energy consumption in water treatment
Pending Publication Date: 2018-11-30
SHANXI HEIMAO JIAOHUA CO LTD
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Benefits of technology
This technology helps remove harmful substances from combustion gases by removing them before sending these gasses into an oven or other equipment used for producing synthetic fuel (syngas). By doing this, more valuable materials can be recovered while minimizing waste material produced during processing. Additionally, the use of less expensive fossil fuels makes manufacturing processes cost-effective due to improved efficiency and lower carbon emissions compared with traditional methods such as burning natural gas at high temperatures.
Problems solved by technology
This patented technical problem addressed by this patents relates to coals being processed for producing useful products like fuel through various processes involving pyrolysis/gasifying technology. These wastewaters contain numerous compounds including nitrosamine, benzene, formaldehyde, acetone, cyanidesulfonate, carboxylic acid anions, polynitriles, polycyclohexylarsines, tetraazaporphyrimidium chloroform ion, perchlorothric Acids, phthoracins, dyes, metal salts, solvents, metallurgies, plasticizers, lubricants, polymers, adhesives, surfactant molecules, resin components, pigments, antioxic drugs, pesticides, preservatives, fragrance ingredients, colorings, flavors, odours, taste buds, bacteriostats, enzyme preparations, medicinal compositions, wax emulsions, pain relief formulations, cosmeceuticals, foodstuffs, beverages, cleanliness maintenance tools, electronics, batteries, electric motors, power plants, vehicles, space exploration devices, robotic systems, sensory feedback mechanisms, electronic displays, communication technologies, and other applications requiring energy sources from fossil fuels.
Method used
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[0014] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0015] The invention discloses a system for purifying gas water after coal gasification, such as figure 1 As shown, the gas water enters the main pipeline 15, and the gas water main pipeline 15 is high-temperature and dusty gas water. 15 is connected to the cold source inlet of the third heat exchanger 14, and through the third heat exchanger 14, the high-temperature dusty gas water and the gas water treated by the stripping tower are exchanged to make full use of heat energy and reduce production costs.
[0016] The cold source outlet of the third heat exchanger 14 is connected to the raw material inlet of the stripper through the decompression separation unit, and the decompression separation unit is also connected with a tar collection unit, and the decompression separation unit is used to remove the tar in the gas water, and the stripper Us
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The invention discloses a gas liquor purification treatment system after coal gasification. The system comprises a gas liquor main, which is connected to a cold source inlet of a third heat exchanger.The cold source outlet of the third heat exchanger is connected to a feed inlet of a stripping tower through a decompression separation unit, which is also connected to a tar connecting unit. The decompression separation unit is used for removing tar in the gas liquor. The stripping tower is used for removing impurity components in the gas liquor. A gas liquor outlet of the stripping tower is connected to a hot source inlet of the third heat exchanger through a pipeline. The third heat exchanger is used for preheating low-temperature gas liquor of the gas liquor main through high-temperaturegas liquor at the outlet of the stripping tower. A hot source outlet of the third heat exchanger is connected to a sewage treatment tank through a fourth heat exchanger. By the system, contents of COD, ammonia and henol in the gas liquor are effectively reduced, and the energy consumption of the subsequent water treatment is greatly reduced, the gas liquor is reused, and consumption of industrialwater during the production process is lowered.
Description
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