| 摘要 |
This invention comprises a method of producing ethylene rich product streams from a pressurized charge gas mixture of olefins and other components received from olefin generation/preparation processes. The method of this invention may eliminate the need for cryogenic fractional distillation and other special separation equipment operating at temperatures below -55° F., and thus also potentially eliminate the refrigeration and heat exchange equipment needed to achieve those low temperatures. Alternatively, the method of this invention may eliminate the need for a circulating lean oil absorbant material, and thus also potentially eliminate the heat exchange equipment and reduces the refrigeration and fractional distillation load required to manage that material. In accordance with the process of this invention, a secondary ethylene rich product stream is produced at a rate and composition suitable for subsequent generation of a primary ethylene rich product potentially containing substantially no components having a boiling point at least as low as ethylene. Further, the secondary ethylene rich product stream may be suitable as feedstock in the production of ethylene derivatives, or be amenable to further concentration of ethylene using bulk separation techniques, or combinations thereof. Accordingly, the capital and operating cost associated with the manufacture of ethylene rich product streams from pressurized charge gas mixtures made by olefin generation processes may be significantly reduced through the method of this invention. |
