摘要 |
<p>This invention includes both novel processes and methods and also novel apparatus and equipment especially adapted for carrying out the processes and achieving the excellent results and outstanding advantages which are obtained thereby and which are essential and basic parts of the invention. This apparatus and process achieved thereby include, but are not limited thereto, a rectifier tower (2) with a reflux drum (16) and a multi-refrigerant core exchanger (12).</p> |