公开(公告)号：US4188793A

公开(公告)日：1980-02-19

申请号：US818807

申请日：1977-07-25

申请人： Richard W. Watson ,  William J. Grant ,  David J. Graham

发明人： Richard W. Watson ,  William J. Grant ,  David J. Graham

IPC分类号： B01D5/00 ,  C07C17/38 ,  F25J3/06 ,  F17C7/02 ,  F17C13/00 ,  F25D15/00

CPC分类号： C07C17/38 ,  B01D5/0012 ,  B01D5/0051 ,  B01D5/0057 ,  B01D5/0084

摘要： In a process for condensing the vapor of a volatile liquid, such as vinyl chloride monomer, a gaseous mixture comprising the vapor of the volatile liquid and a non-flammable gas, such as nitrogen, is heat exchanged with a liquid refrigerant or vapor evolved therefrom, or both, the heat exchange being performed such that condensate of the vapor of the volatile liquid is produced at a directly or indirectly controlled temperature which is between the boiling point of the volatile liquid at atmospheric pressure and the boiling point of the refrigerant at atmospheric pressure and which is also between the boiling and freezing points of the volatile liquid at the prevailing pressure at which the condensate is formed, the non-flammable gas remaining uncondensed; the condensate is collected; the uncondensed gas is warmed to a temperature, and then vented to the atmosphere.

摘要翻译： 在将诸如氯乙烯单体的挥发性液体的蒸气冷凝的过程中，包含挥发性液体的蒸汽和不可燃气体（例如氮气）的气体混合物与液体制冷剂或从其中产生的蒸气进行热交换 或两者，进行热交换，使得在直接或间接控制的温度下产生挥发性液体的蒸汽的冷凝物，该温度在大气压下在挥发性液体的沸点和制冷剂在大气压下的沸点之间 并且在形成冷凝物的主要压力下也在挥发性液体的沸点和凝固点之间，不可燃气体保持不冷凝; 收集冷凝水; 将未冷凝的气体加热至温度，然后排放到大气中。