摘要:
A method for generating refrigeration for application to a heat load, especially at very cold temperatures, using an environmentally benign working gas such as air and using an upstream precooling circuit to reduce or eliminate inefficiencies stemming from warm end pinch.
摘要:
A method for generating refrigeration for application to a heat load, especially at very cold temperatures, using an environmentally benign working gas such as air and using an upstream precooling circuit to reduce or eliminate inefficiencies stemming from warm end pinch.
摘要:
A process and apparatus to produce ultra high purity oxygen comprising serially oriented stripping and absorbing columns having defined flow stream relationships.
摘要:
A single column process to produce nitrogen at relatively high purity and yield by the cryogenic rectification of air employing multiple defined feeds to the column to allow for increased product removal off the top of the column while avoiding the need to recycle withdrawn nitrogen.
摘要:
A cryogenic process to efficiently produce large quantities of nitrogen gas at elevated pressure by use of a double column and multiple condenser-reboilers.
摘要:
A cryogenic rectification system comprising two cryogenic rectification plants wherein a fluid mixture comprising argon and nitrogen is withdrawn in a defined manner from the first plant and passed into the second plant such that argon production is enhanced to more than offset the additional separation power requirements.
摘要:
A method and apparatus for producing elevated pressure nitrogen with improved recovery comprising a primary column and a lower pressure auxiliary column wherein auxiliary column top vapor is condensed, pressurized and passed into the primary column.
摘要:
A process for producing ultra high purity nitrogen from nitrogen produced by the cryogenic rectification of air wherein superatomospheric nitrogen is progressively condensed and revaporized to effect rejection of lower boiling impurities without need for additional energy beyond that contained in the nitrogen input.
摘要:
A krypton-xenon concentration process which also produces substantially rare gas-free oxygen gas while requiring a stripping column substantially smaller than is required by conventional process wherein feed liquid is provided directly to a reboiling zone and only the vapor from the reboiling zone is passed through the stripping column.
摘要:
A porous composite structure comprising a sintered mixture of metal particles and alumina particles, and a method for producing this composite. The composite is useful as a catalyst support, particularly in apparatus designed to reduce pollutant emissions from automobile engines.