With plural indirect heat transfer steps on solid sorbent or gaseous fluid mixture or constituent thereof:
(under subclass 90) Process in which there is more than one step of heating or cooling the solid sorbent or the gaseous fluid mixture or constituent thereof through a wall before or after separation.
(1) Note. The heat transfer steps must be part of a larger process containing subject matter for Class 95, such as will be found in this and the indented subclass where the heat transfer steps are combined with sorption of a constituent from a gas on a solid sorbent. If the only separation involved is conducted by the heat transfer steps, then classification in Class 165 is proper.
SEE OR SEARCH CLASS
165, Heat Exchange, appropriate subclasses for processes where only indirect heat exchange causes the separation of a constituent from a gas.
