摘要 |
<p>#CMT# #/CMT# An internal combustion engine/turbine uses an oxygen-enriched gas as oxidizer. #CMT#USE : #/CMT# In the operation of internal combustion engines or turbines. #CMT#ADVANTAGE : #/CMT# The emission of harmful gases is reduced and the engine performance is increased while flushing to assist desorption can be dispensed with and replaced by vacuum production in a molecular sieve and/or use of the exhaust gas. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The block diagram shows an embodiment in which the nitrogen is completely removed from the air fed to the engine so as to give a combustion mixture yielding a very high piston displacement. #CMT#MECHANICAL ENGINEERING : #/CMT# Preferred Process : The oxygen-enriched gas is air with a reduced nitrogen content, the nitrogen being partly or completely separated off from the air prior to the combustion process. Such separation is effected by a pressure- and/or temperature-swing adsorption process (e.g. as per , the energy required for such a separation process being supplied from the internal combustion engine/turbine. Flushing to assist the desorption is dispensed with and replaced by vacuum production in a molecular sieve and/or the exhaust gas is used in flushing to assist desorption.</p> |