The first set of methanation device completes the continuous flow test
On August 10th, Dalian Pret Chemical Technology Co., Ltd., the Dalian Institute of Chemical Industry, Chinese Academy of Sciences learned that the first set of coke oven gas methanation synthesis natural gas test facility in China completed 1000 hours of continuous flow in the coking plant of Shandong Tiexiong Energy Coal Chemical Co., Ltd. test. The coking oven gas methanation synthesis natural gas project completed by Dalian Puriter, Tiexiong Energy and Chengdu Wuhuan Xinrui Chemical Co., Ltd. has passed the technical appraisal of Shandong Province.
Industry experts commented that the project can not only bring “carbonization†to bring “cokingâ€, drive technical progress in the coking and energy industry, but also solve the problem of environmental pollution and waste of resources caused by coke oven gas emissions and open up new sources of natural gas. If China recycles 20 billion cubic meters of coke oven gas each year, it will be able to obtain about 8.7 billion cubic meters of compressed natural gas and emit a large amount of greenhouse gases and harmful substances, which will have a significant effect on energy conservation and emission reduction.
According to the person in charge of the project, the total content of methane, carbon monoxide, and carbon dioxide in the coke oven gas is nearly 40%, and the hydrogen content is high. The coke oven gas methanation environment-friendly technology can effectively utilize all the components in the coke oven gas and greatly increase the efficiency. Energy utilization. The coke oven gas passes methanation reaction to convert most of carbon monoxide and carbon dioxide into methane to obtain a mixed gas mainly containing hydrogen, methane, and nitrogen, and then uses pressure swing adsorption or membrane separation technology to obtain a methane volume fraction of more than 90%. Synthetic natural gas, compressed or liquefied to obtain compressed natural gas, liquefied natural gas.
The project has achieved a number of innovations, and its second-stage adiabatic low-pressure tail gas does not recycle the added water vapor process and the performance of the methanation catalyst has reached the world advanced level. Dalian Puriter Chemical Technology Co., Ltd. has undertaken the coke oven gas methanation catalyst and engineering technology. Development research work.
China is the world's largest producer of coke. The independent coking enterprise produces about 89.4 billion cubic meters of coke oven gas per year. In addition to reheating for personal use, civil use, and power generation and chemical use, the annual coke oven gas is approximately 20 billion cubic meters. The calorific value of rice exceeds the calorific value of natural gas for the first phase of the “West-to-East Gas Transmission†project, which not only pollutes the environment, but also causes a huge waste of energy.
At present, there are mainly coke oven gas utilization methods in the industry: as city gas, power generation, and hydrogen extraction from coke oven gas, in addition, methanol, dimethyl ether, or synthetic ammonia can be produced after deep purification. However, the efficiency and energy utilization of these methods are low and the benefits are not obvious.
Industry experts commented that the project can not only bring “carbonization†to bring “cokingâ€, drive technical progress in the coking and energy industry, but also solve the problem of environmental pollution and waste of resources caused by coke oven gas emissions and open up new sources of natural gas. If China recycles 20 billion cubic meters of coke oven gas each year, it will be able to obtain about 8.7 billion cubic meters of compressed natural gas and emit a large amount of greenhouse gases and harmful substances, which will have a significant effect on energy conservation and emission reduction.
According to the person in charge of the project, the total content of methane, carbon monoxide, and carbon dioxide in the coke oven gas is nearly 40%, and the hydrogen content is high. The coke oven gas methanation environment-friendly technology can effectively utilize all the components in the coke oven gas and greatly increase the efficiency. Energy utilization. The coke oven gas passes methanation reaction to convert most of carbon monoxide and carbon dioxide into methane to obtain a mixed gas mainly containing hydrogen, methane, and nitrogen, and then uses pressure swing adsorption or membrane separation technology to obtain a methane volume fraction of more than 90%. Synthetic natural gas, compressed or liquefied to obtain compressed natural gas, liquefied natural gas.
The project has achieved a number of innovations, and its second-stage adiabatic low-pressure tail gas does not recycle the added water vapor process and the performance of the methanation catalyst has reached the world advanced level. Dalian Puriter Chemical Technology Co., Ltd. has undertaken the coke oven gas methanation catalyst and engineering technology. Development research work.
China is the world's largest producer of coke. The independent coking enterprise produces about 89.4 billion cubic meters of coke oven gas per year. In addition to reheating for personal use, civil use, and power generation and chemical use, the annual coke oven gas is approximately 20 billion cubic meters. The calorific value of rice exceeds the calorific value of natural gas for the first phase of the “West-to-East Gas Transmission†project, which not only pollutes the environment, but also causes a huge waste of energy.
At present, there are mainly coke oven gas utilization methods in the industry: as city gas, power generation, and hydrogen extraction from coke oven gas, in addition, methanol, dimethyl ether, or synthetic ammonia can be produced after deep purification. However, the efficiency and energy utilization of these methods are low and the benefits are not obvious.
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