PC decarbonization process PC liquid pressure energy recovery method and device
A carbon-propylene decarburization method carbon-propylene liquid and recovery method technology, which is applied to household refrigeration devices, compressors, refrigeration and liquefaction, etc., can solve problems such as waste of carbon-propylene liquid pressure potential energy, and achieves reduction of carbon-propylene liquid loss and system. The effect of simplifying the process and reducing energy consumption
Inactive Publication Date: 2016-10-12
HUBEI SANNING CHEM
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Problems solved by technology
In the existing carbon propylene decarburization process, the working pressure of the decarburization tower is 2.0Mpa, while the working pressure of the flash tower is normal pressure. There is a pressure difference of 2.0Mpa between the decarburization tower and the flash tower. At present, direct decompression is mostly used. method, the pressure potential energy of the carbon-acrylic liquid is wasted in vain
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[0023] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0024] A carbon propylene decarburization method carbon propylene liquid pressure energy recovery method. The method includes depressurization-cooling;
[0025] The decompression: the high-temperature and high-pressure carbon-acrylic liquid in the decarburization tower drives the compressor by acting on the turbine to perform preliminary decompression, and then performs secondary decompression through the flash tower;
[0026] Said cooling: the depressurized carbon-acrylic liquid in the flash tower passes through the water cooler under the action of the decarburization pump, and enters the refrigerant circulating cooling system such as ammonia and freon, and the compressor circulates the ammonia, freon and other refrigerants in the cooling system. Refrigerants such as Freon are compressed and condensed, and the temperature is lowered after the refrigeran...
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The invention provides a PC decarbonization process PC liquid pressure energy recovery method and device. The method comprises the steps of depressurization and cooling. The device comprises a decarbonization tower, a flashing tower and a turbine driven refrigeration compressor. The turbine driven refrigeration compressor comprises a turbine and a refrigeration compressor body driven by the turbine. The decarbonization tower communicates with the flashing tower through the turbine driven refrigeration compressor. The flashing tower communicates with a water cooler through a decarbonization pump. The water cooler communicates with an evaporator. The evaporator communicates with the decarbonization tower. The refrigeration compressor body of the turbine driven refrigeration compressor communicates with the decarbonization pump. The decarbonization pump communicates with the flashing tower. The decarbonization pump communicates with the flashing tower. The turbine driven refrigeration compressor, a condenser and the evaporator communicate in sequence to form a cooling loop. The PC decarbonization process PC liquid pressure energy recovery method and device have the advantages that the temperature of PC working fluid is lowered, so that gasification loss is reduced in the washing and regeneration process of PC; and no external energy supplements are needed.
Description
[0001] A method and device for recovering pressure energy of a carbon-propylene liquid in a carbon-propylene decarbonization method. technical field [0002] The invention relates to a method for recovering the pressure energy of carbon-propylene liquid in the carbon-propylene decarbonization method, in particular to using a turbine to recover the high-pressure potential energy of the carbon-propylene liquid to drive the compressor to refrigerate. This system enables the decarburization system to maintain self-balancing operation of cooling capacity under low temperature conditions. Background technique [0003] The propylene carbonate decarburization process is a decarbonization technology often used in the ammonia synthesis industry. It has the advantages of high decarbonization efficiency, regenerated and reused working fluid, etc. Carbon propylene decarburization is suitable for working at low temperature, and the temperature drop can effectively increase CO 2 Solubilit...
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IPC IPC(8): F25B41/00F25B1/00F25B49/02F25D1/02F25B43/00F25B27/00F25B41/40
CPCF25B1/00F25B27/00F25B43/00F25B49/02F25D1/02F25B2327/00F25B41/40
Inventor 李万清游川北李发春
Owner HUBEI SANNING CHEM
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