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Efficient resource treatment and reuse system of waste water of hydrogen prepared by Texaco furnace coal

A coal-to-hydrogen and resource-based technology, applied in water/sewage treatment, oxidized water/sewage treatment, multi-stage water/sewage treatment, etc., can solve the problems of difficult removal, high cost, and low benefit, and achieve reduced treatment cost, increase the carbon-nitrogen ratio, and reduce the effect of treatment load

Pending Publication Date: 2017-01-11
GUANGDONG UNIV OF PETROCHEMICAL TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

NH in wastewater from Texaco coal-to-gas process 4 + -N concentration belongs to low to medium concentration, it is not easy to remove by steam stripping, extraction, rectification and other methods, otherwise the cost is high and the benefit is low

Method used

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  • Efficient resource treatment and reuse system of waste water of hydrogen prepared by Texaco furnace coal
  • Efficient resource treatment and reuse system of waste water of hydrogen prepared by Texaco furnace coal

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Embodiment 1

[0026] see figure 1 and figure 2 , in an embodiment of the present invention, a high-efficiency resource treatment and reuse system for Texaco furnace coal-to-hydrogen wastewater, the upper water outlet of the black water settling tank 1 is connected to Ca through the first drainage pump 15 2+ Lower water inlet of reaction sedimentation tank 2, Ca 2+ The upper water outlet of the reaction sedimentation tank 2 is connected to the lower water inlet of the MAP reaction sedimentation tank 3 through the second drainage pump 20, and the upper water outlet of the MAP reaction sedimentation tank 3 is connected to the lower water inlet of the anaerobic treatment unit 4 through the third drainage pump 30 , the water outlet of the anaerobic treatment unit 4 is connected to the water inlet of the aerobic treatment unit 5 through the fourth drainage pump 35, the water outlet of the aerobic treatment unit 5 is connected to the water inlet of the secondary sedimentation tank 6, and the out...

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Abstract

The invention discloses an efficient resource treatment and reuse system of waste water of hydrogen prepared by Texaco furnace coal, comprising a black water sedimentation tank, a Ca2+ reaction sedimentation tank, an MAP reaction sedimentation tank, an anaerobic treatment unit, an aerobic treatment unit, a secondary sedimentation tank, a BAF filter, a sand filter, an ozone oxidation tower, an activated carbon filter, a header tank, a reverse osmosis device and a clean water tank, wherein sediments at the bottoms of the Ca2+ reaction sedimentation tank and the MAP reaction sedimentation tank are treated to respectively obtain CaCO3 sediments and MgNH4PO4.6H2O sediments as building materials, agricultural slow release fertilizers or chemical materials. The system is simple in process and easy to operate, the waste water hardness is greatly reduced and a scaling problem is greatly improved, and thus the overhaul period of equipment is prolonged about more than six months.

Description

technical field [0001] The invention relates to the technical field of industrial wastewater treatment, in particular to a high-efficiency resource treatment and reuse system for Texaco furnace coal-to-hydrogen wastewater. Background technique [0002] my country's coal output ranks first in the world, and vigorously developing coal chemical industry is the strategic goal of my country's response to the energy crisis. Coal-to-gas is the leader in the development of coal chemical industry. Hydrogen is an important raw material for oil refining, petrochemical and coal chemical industries. At present, the traditional hydrogen production with natural gas and refinery dry gas as raw materials is being converted to coal-to-hydrogen. After 2013, Maoming, Zibo, Jiujiang, Nanjing, Anqing and other oil refineries in China have built multiple sets of Texaco (GE) coal-to-hydrogen plants. GE coal-water slurry gasification technology is one of the more successful coal gasification techno...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F9/00C02F3/30C02F1/78C02F1/52C02F1/5254C02F1/283
Inventor 张冬梅程丽华刘洋涂宁宇范芳张斯程李晓银陶蕾宇林文耀黄强潮袁柏康陈伟胜濮倩敏
Owner GUANGDONG UNIV OF PETROCHEMICAL TECH
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