Oxygen-free CBM Cryogenic Liquefaction Separation Pilot Success
Recently, a good news came from a low-concentration gas cryogenic liquefaction pilot base. The base successfully produced low-concentration gas as a raw material for the production of liquefied natural gas (LNG) units and successfully produced qualified LNG products. So far, the Institute of Physical and Chemical Technology of the Chinese Academy of Sciences has completed a series of tests, pilot tests, and pilot tests of oxygen-containing CBM cryogenic liquefaction and separation facilities over the past six years, demonstrating the safety and feasibility of this technical solution.
The pilot base was jointly constructed by China Coal Science and Engineering Group Chongqing Coal Science Institute, Chongqing Songzao Coal and Electricity Co., Ltd. and the Institute of Physical and Chemical Technology of the Chinese Academy of Sciences. Oxygenated coalbed methane liquefaction plant is a subproject of the national “Eleventh Five-Year†major project—low ​​concentration gas enrichment and storage and transportation. It is the third set of construction after the Yangmei Coal Group and Shanxi Coal Group after the Institute of Physics and Chemistry of the Chinese Academy of Sciences. Low concentration gas cryogenic liquefaction plant. This set of equipment has many improvements over the previous two sets of equipment: it meets the actual needs of large-scale production equipment in the process flow, selects the advanced mixed refrigerant refrigeration process, is equipped with a complete decarbonization and dewatering system, and adopts advanced control technology. DCS, and equipped with SIS system and flammable gas alarm system, can ensure long-term safe operation of the device.
China Coal Science and Engineering Group Chongqing Coal Research Institute, Chongqing Songzao Coal and Electricity Co., Ltd. and the Institute of Physics and Chemistry, Chinese Academy of Sciences will jointly carry out relevant testing work on the purification system and mixed refrigerant refrigeration system at this base for oxygenated gas. Accumulated more experience in the safe and efficient use of gas. The following figure shows the pilot plant for oxygen-free CBM cryogenic liquefaction separation.
The pilot base was jointly constructed by China Coal Science and Engineering Group Chongqing Coal Science Institute, Chongqing Songzao Coal and Electricity Co., Ltd. and the Institute of Physical and Chemical Technology of the Chinese Academy of Sciences. Oxygenated coalbed methane liquefaction plant is a subproject of the national “Eleventh Five-Year†major project—low ​​concentration gas enrichment and storage and transportation. It is the third set of construction after the Yangmei Coal Group and Shanxi Coal Group after the Institute of Physics and Chemistry of the Chinese Academy of Sciences. Low concentration gas cryogenic liquefaction plant. This set of equipment has many improvements over the previous two sets of equipment: it meets the actual needs of large-scale production equipment in the process flow, selects the advanced mixed refrigerant refrigeration process, is equipped with a complete decarbonization and dewatering system, and adopts advanced control technology. DCS, and equipped with SIS system and flammable gas alarm system, can ensure long-term safe operation of the device.
China Coal Science and Engineering Group Chongqing Coal Research Institute, Chongqing Songzao Coal and Electricity Co., Ltd. and the Institute of Physics and Chemistry, Chinese Academy of Sciences will jointly carry out relevant testing work on the purification system and mixed refrigerant refrigeration system at this base for oxygenated gas. Accumulated more experience in the safe and efficient use of gas. The following figure shows the pilot plant for oxygen-free CBM cryogenic liquefaction separation.
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