目前,国内不少回收二氧化碳尾气的单位,通常都采用高压法。即用压缩机把经过净化的二氧化碳气(一般在1.03ata 左右)加压至85ata。用自来水喷淋冷却液化。二氧化碳液体充瓶或减压降温制成粉状干冰外销。随着国民经济不断发展,固体二氧化碳——干冰的需要量日益增大。如仍采用高压法制取的液体来制干冰,其能耗较之用低压法(加压至20ata,用制冷设备冷却液化)制 At present, many domestic units to recover carbon dioxide emissions, usually using high-pressure method. The compressor is used to purify the purified carbon dioxide gas (usually about 1.03ata) to 85ata. Sprinkle with tap water and liquefy. Carbon dioxide liquid bottle or vacuum cooling made of powder dry ice export. As the national economy continues to evolve, the demand for solid carbon dioxide, dry ice, is on the rise. If still using high-pressure liquid obtained by law to make dry ice, the energy consumption compared with the use of low-pressure method (pressurized to 20ata, cooled with refrigeration equipment liquefaction)