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Coal gasification system and method for treating organic waste liquid

A technology of organic waste liquid and gasification system, which is applied in the field of coal gasification, can solve the problems of high processing difficulty, high processing cost, and difficult processing, and achieve good back-mixing effect, simplified process, and uniform distribution of flow field and temperature field Effect

Pending Publication Date: 2020-03-27
科林能源技术(北京)有限公司
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Problems solved by technology

In addition, considering that coal chemical factories often have some high-COD organic waste liquids, which are difficult to deal with and costly to deal with, for example, a large amount of toxic waste water (also called tar waste water) will be produced in the process of coal tar processing, and the waste water contains high concentrations of organic matter , the composition is complex and difficult to handle

Method used

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  • Coal gasification system and method for treating organic waste liquid
  • Coal gasification system and method for treating organic waste liquid
  • Coal gasification system and method for treating organic waste liquid

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Embodiment

[0061] Coal chemical factories use coal as raw material to produce a variety of chemicals. The coal quality data are shown in Table 1. Some raw coal is pyrolyzed to produce tar, other oil products and coke powder, and some raw coal is produced through coal gasification to produce syngas for downstream synthesis of other chemicals. The wastewater discharged from tar wastewater has high COD and ammonia nitrogen content (see Table 2 for water quality), and contains ammonia nitrogen, phenols, indole, quinoline and other monocyclic or polycyclic aromatic compounds, as well as heterocyclic organic compounds containing nitrogen, sulfur, and oxygen. One of the most difficult wastewater to treat.

[0062] The gasification device in the plant adopts multiple above-mentioned pulverized coal pressurized gasification equipment, taking a single gasification equipment with a coal input capacity of 1,500 tons as an example, such as figure 1 and 2As shown, top-mounted 3+1 burners are used, th...

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Abstract

The invention discloses a coal gasification system and method for treating organic waste liquid. The gasification system comprises a gasification furnace, an organic waste liquid unit and a boiler water unit. The gasification furnace comprises a gasification chamber, a cooling chamber located below the gasification chamber and a slag discharging opening communicating with the gasification chamberand the cooling chamber, and a burner part is arranged at the top of the gasification chamber. The burner part comprises a burner base fixed to the furnace body, an ignition burner arranged in the center of the burner base and a plurality of process burners uniformly arranged around the ignition burner. The process burner is sequentially provided with an oxygen channel, a pulverized coal channel,a liquid channel and a cooling water jacket from inside to outside. The feeding hole of the liquid channel is respectively connected to the boiler water unit, the organic waste liquid unit and an inert gas source through pipelines. The pulverized coal gasification process is simplified, water / organic waste liquid is used as an auxiliary gasification agent, organic matter in the waste liquid is treated and converted and environmental protection and cyclic utilization are both considered.

Description

technical field [0001] The invention relates to the field of coal gasification, in particular to a coal gasification system and method for treating organic waste liquid. Background technique [0002] my country's energy and resource consumption is dominated by coal, and many chemicals are produced through coal conversion, and the source of these conversions is the use of coal gasification technology to convert coal into carbon monoxide and hydrogen. The gas is then further synthesized to make downstream chemicals or fuels. Due to its advantages in gasification efficiency, dry pulverized coal entrained gasification technology has been widely used by domestic coal chemical plants. This technology is to grind and dry the raw coal to make small coal powder, which is transported to the gasifier in a gasification furnace for gasification reaction with oxygen. The coal conversion rate can reach more than 99%, and the effective gas content is 87-93%. The cold gas efficiency is 79-8...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/50C10J3/72
CPCC10J3/50C10J3/72
Inventor 单育兵高鑫徐江
Owner 科林能源技术(北京)有限公司
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