| Patent Number |
Title Of Patent |
Date Issued |
| 7678958 |
Method of removing dimethyl ether from an olefin stream |
March 16, 2010 |
| This invention is directed to a method of removing dimethyl ether from an olefin stream. The method includes distilling the olefin stream so that the dimethyl ether is separated out of the olefin stream with propane. The olefin stream can then be further distilled to provide a polymer |
| 7385100 |
Treating oxygenate containing feedstreams in the conversion of oxygenates to olefins |
June 10, 2008 |
| This invention is directed to removing contaminants from an oxygenate-containing feedstream for an oxygenate to olefin reaction system. Oxygenate feeds used in the conversion of oxygenates to olefins, and which contain contaminants, are heated to form a vapor stream and a liquid stre |
| 7323147 |
Method and apparatus for treating oxygenate-containing feeds and their use in conversion of oxyg |
January 29, 2008 |
| A feed vaporization process and apparatus for oxygenate to olefin conversion is provided which uses a vapor-liquid disengaging drum to separate non-volatiles and/or partial non-volatiles from volatiles in the oxygenate feed and produce a vaporized effluent that is reduced in non-vola |
| 7214843 |
Treating oxygenate containing feedstreams in the conversion of oxygenates to olefins |
May 8, 2007 |
| This invention is directed to removing contaminants from an oxygenate-containing feedstream for an oxygenate to olefin reaction system. Oxygenate feeds used in the conversion of oxygenates to olefins, and which contain contaminants, are heated to form a vapor stream and a liquid stre |
| 7135604 |
Process for separating carbon dioxide from an oxygenate-to-olefin effluent stream |
November 14, 2006 |
| The present invention is a process for removal of carbon dioxide from a reactor effluent stream comprising water, carbon dioxide and olefin(s), where a portion of the carbon dioxide is removed in a quenching step with a quench medium and more carbon dioxide is removed by contacting the |
| 7119241 |
Process for handling catalyst from an oxygenate to olefin reaction |
October 10, 2006 |
| The present invention is a process for removing catalyst fines from an effluent stream in an oxygenate to olefin process. Specifically, the catalyst fines in the effluent stream are separated from the effluent stream. Then the carbonaceous deposits are removed from the catalyst fines |
| 7102049 |
Process for operating a quench device in an oxygenate-to-olefin production unit |
September 5, 2006 |
| The present invention is a process for producing olefin(s) from oxygenates that is more effective than previously known processes at removing carbon dioxide from the effluent stream by operating a quench tower at a pH greater than 7.0. |
| 7048833 |
Method and apparatus for treating oxygenate-containing feeds and their use in conversion of oxyg |
May 23, 2006 |
| A feed vaporization process and apparatus for oxygenate to olefin conversion is provided which uses a vapor-liquid disengaging drum to separate non-volatiles and/or partial non-volatiles from volatiles in the oxygenate feed and produce a vaporized effluent that is reduced in non-vola |
| 6855858 |
Method of removing dimethyl ether from an olefin stream |
February 15, 2005 |
| This invention is directed to a method of removing dimethyl ether from an olefin stream. The method includes distilling the olefin stream so that the dimethyl ether is separated out of the olefin stream with propane. The olefin stream can then be further distilled to provide a polymer gr |
| 6846966 |
Method and apparatus for treating oxygenate-containing feeds and their use in conversion of oxyg |
January 25, 2005 |
| A feed vaporization process and apparatus for oxygenate to olefin conversion is provided which uses a vapor-liquid disengaging drum to separate non-volatiles and/or partial non-volatiles from volatiles in the oxygenate feed and produce a vaporized effluent that is reduced in non-vola |
