Patent application number | Description | Published |
20090062589 | Metathesis Unit Pretreatment Process with Formation of Octene - Disclosed is a process for integrating a butene dimerization process with a metathesis process to remove isobutene from the feed stream to the metathesis reactor. The isobutene is preferentially dimerized in the dimerization process to leave n-butenes for metathesis with ethylene. An upstream selective hydrogenation process also isomerizes 1-butenes to 2-butenes which is the preferred butene reagent in the metathesis process. A common fractionator column for the dimerization and hydrogenation processes is also described. | 03-05-2009 |
20090326295 | METATHESIS UNIT PRETREATMENT PROCESS WITH FORMATION OF OCTENE - Disclosed is a process for integrating a butene dimerization process with a metathesis process to remove isobutene from the feed stream to the metathesis reactor. The isobutene is preferentially dimerized in the dimerization process to leave n-butenes for metathesis with ethylene. An upstream selective hydrogenation process also isomerizes 1-butenes to 2-butenes which is the preferred butene reagent in the metathesis process. A common fractionator column for the dimerization and hydrogenation processes is also described. | 12-31-2009 |
20100018899 | PROCESS AND APPARATUS FOR PRODUCING A REFORMATE BY INTRODUCING ISOPENTANE - One exemplary embodiment can be a process for producing a reformate by combining a stream having an effective amount of isopentane and a stream having an effective amount of naphtha for reforming. Generally, the naphtha has not less than about 95%, by weight, of one or more compounds having a boiling point of about 38—about 260° C. as determined by ASTM D86-07. The process may include introducing the combined stream to a reforming reaction zone. The combined stream can have an isopentane:naphtha mass ratio of about 0.10:1.00—about 1.00:1.00. | 01-28-2010 |
20100018900 | PROCESS AND APPARATUS FOR PRODUCING A REFORMATE BY INTRODUCING n-BUTANE - One exemplary embodiment can be a process for producing a reformate by combining a stream having an effective amount of n-butane and a stream having an effective amount of naphtha for reforming. Generally, the naphtha has not less than about 95%, by weight, of one or more compounds having a boiling point of about 38—about 260° C. as determined by ASTM D86-07. The process can include introducing the combined stream to a reforming reaction zone. Typically, the combined stream has an n-butane:naphtha mass ratio of about 0.10:1.00—about 1.00:1.00. | 01-28-2010 |
20100018901 | PROCESS AND APPARATUS FOR PRODUCING A REFORMATE BY INTRODUCING METHANE - One exemplary embodiment can be a process for producing a reformate by combining a stream having an effective amount of methane and a stream having an effective amount of naphtha for reforming. Generally, the naphtha includes not less than about 95%, by weight, of one or more compounds having a boiling point of about 38-about 260° C. as determined by ASTM D86-07. Moreover, the process can include introducing the combined stream to a reforming reaction zone. Generally, the combined stream has a methane:naphtha mass ratio of about 0.03:1.00-about 0.10:1.00. | 01-28-2010 |
20110021851 | PROCESS OR SYSTEM FOR DESORBING AN ADSORBENT BED - One exemplary embodiment can be a process for desorbing an adsorbent bed. The process can include passing a desorbent stream through the adsorbent bed to remove at least one of a nitrile compound and an oxygenate compound. Generally, the desorbent stream after desorbing is combined with a feed stream for an alkylation zone after a selective hydrogenation zone. | 01-27-2011 |
20140088334 | PROCESS FOR REMOVING ONE OR MORE SULFUR COMPOUNDS FROM A STREAM - One exemplary embodiment can be a process for removing one or more disulfide compounds from a caustic stream. The process can include passing the caustic stream, previously contacted with a hydrocarbon stream for removing one or more mercaptans, through a column to remove the one or more disulfide compounds downstream of a mercaptan oxidation zone. The caustic stream can be contacted with a solvent stream comprising one or more hydrocarbons in a column. The solvent stream can be passed to a plurality of beds for removal of extracted disulfides from the solvent over an adsorbent. | 03-27-2014 |
20140134059 | APPARATUS FOR OLIGOMERIZING LIGHT OLEFINS - Disclosed is a process and apparatus for switching oligomerization feed between a first oligomerization zone that includes a uni-dimensional small pore zeolite to make more diesel and a second oligomerization zone that includes SPA catalyst for making more gasoline. The diesel can be recycled to make more propylene. The process and apparatus will provide refiners with flexibility to produce the most valuable product commensurate with fluctuating market conditions. | 05-15-2014 |
20140135541 | PROCESS FOR OLIGOMERIZING GASOLINE WITHOUT FURTHER UPGRADING - Oligomerizing C | 05-15-2014 |
20140135543 | PROCESS FOR OLIGOMERIZING LIGHT OLEFINS - Disclosed is a process and apparatus for switching oligomerization feed between a first oligomerization zone that includes a uni-dimensional small pore zeolite to make more diesel and a second oligomerization zone that includes SPA catalyst for making more gasoline. The diesel can be recycled to make more propylene. The process and apparatus will provide refiners with flexibility to produce the most valuable product commensurate with fluctuating market conditions. | 05-15-2014 |
20140135546 | PROCESS FOR MAKING PROPYLENE FROM OLIGOMERIZATION AND CRACKING - Disclosed is an oligomerate produced over a uni-dimensional 10-ring pore structured zeolite catalyst that is readily fluid catalytically cracked to propylene. | 05-15-2014 |
20140135547 | PROCESS FOR OLIGOMERIZING LIGHT OLEFINS INCLUDING PENTENES - A process provides oligomerization feed stream comprising C | 05-15-2014 |
20140135552 | PROCESS FOR MAKING DIESEL BY OLIGOMERIZATION - Disclosed is that by oligomerizing C | 05-15-2014 |
20140135553 | PROCESS FOR RECYCLING OLIGOMERATE TO OLIGOMERIZATION - A process for separating an oligomerate stream into a vaporous oligomerate stream and a liquid oligomerate bottom stream is followed by recycling the liquid oligomerate bottom stream to an oligomerization zone to maintain the liquid phase therein and to provide unreacted olefins to the oligomerization zone. | 05-15-2014 |
20140135554 | PROCESS FOR MAKING DIESEL BY OLIGOMERIZATION OF GASOLINE - Recycle of a stream comprising C | 05-15-2014 |
20140296587 | Integrated Process for Increasing Butadiene Production - A process is present for increasing the yields of 1,3 butadiene. The process includes recovering 1,3 butadiene from a cracking unit that generates a crude C4 stream. The 1,3 butadiene is separated and the remaining C4 process stream components are further reacted and dehydrogenated to generate 1,3 butadiene in a subsequent process stream. The subsequent process stream is recycled to recover the additional 1,3 butadiene. | 10-02-2014 |
20140296588 | PRODUCTION OF BUTADIENE AND MIXED ETHERS FROM AN OXYGENATE TO OLEFIN UNIT - A method of producing butene from an oxygenate-containing feedstock is described. The oxygenate-containing feedstock is converted to olefins and separated. The C | 10-02-2014 |
20140296589 | Process for the Purification of 1,3-Butadiene from an Oxidative Dehydrogenation Process - A process is presented for the purification of 1,3 butadiene. The process is for treating a butadiene stream from an oxidative dehydrogenation unit, where a butane stream is dehydrogenated, generating a butadiene rich stream. The butadiene rich stream is fractionated and passed through a butadiene recovery unit. Additional C4 compounds recovered from the fractionation bottoms stream are further processed for increasing yields of butadiene. | 10-02-2014 |