Patent ID: 8084008
Filing Date: 2011-12-27
Classification: C01C,C01F

Abstract:
1. A process for saturating a solid material capable of binding ammonia by ad- or absorption and initially free of ammonia or partially saturated with ammonia, wherein said process comprises treating said solid material under a pressure and associated temperature located on the vapor pressure curve of ammonia with an amount of liquid ammonia sufficient to saturate said solid material and an additional amount of a cooling agent selected from the group consisting of liquid ammonia, liquid or solid CO 2 , hydrocarbons and hydrohalocarbons that have a vapor pressure higher than ammonia, ethyl ether, methyl formate, methyl amine and ethyl amine in a reactor, such that |Q abs |≦|Q evap |+Q ext , wherein Q abs is the amount of heat released from said solid material when it absorbs ammonia from the liquid phase thereof to the point where it is saturated with ammonia, Q evap is the amount of heat absorbed by said cooling agent when it evaporates, and Q ext is the amount of heat exchanged with the surroundings and is positive, if heat is removed from the process by external cooling, and negative, if heat is added to the process from the surroundings.