| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 585314000 | With hydrocarbon effluent stream splitting for recycle to different syntheses | 25 |
| 20080207971 | Alkylation Process with Settler Effluent Recycle - A system and/or process for increasing the isobutane to olefin ratio in an alkylation process/system is disclosed. The system and/or process includes provisions for charging a portion of the settler effluent as a feed to at least one reaction zone downflow from the first reaction zone of a multi-zone alkylation reactor along with a portion of the olefin feed to the multi-zone alkylation reactor. | 08-28-2008 |
| 20090023967 | Processes and Apparatus for Making Detergent Range Alkylbenzenes Using Transalkylation - Dialkylbenzenes are transalkylated in the presence of benzene and solid catalyst. The transalkylation product is subjected to distillation to provide a lower-boiling, benzene-containing fraction which is fed to a transalkylation reactor as at least a portion of the benzene. Thus, high benzene to dialkylbenzene molar ratios can be economically maintained in order to enhance catalyst stability. | 01-22-2009 |
| 20090112028 | Integrated Production of FCC-Produced C2 and Ethyl Benzene - Processing schemes and arrangements are provided for obtaining ethylene and ethane via the catalytic cracking of a heavy hydrocarbon feedstock and converting the ethylene into ethyl benzene without separating the ethane from the feed stream. The disclosed processing schemes and arrangements advantageously eliminate any separation of ethylene from ethane produced by a FCC process prior to using the combined ethylene/ethane stream as a feed for an ethyl benzene process. Further, heat from the alkylation reactor is used for one of the strippers of the FCC process and at least one bottoms stream from alkylation process is used as an absorption solvent in the FCC process. | 04-30-2009 |
| 20090112029 | Integrated Production of FCC-Produced C3 and Cumene - Processing schemes and arrangements are provided for obtaining propylene and propane via the catalytic cracking of a heavy hydrocarbon feedstock and converting the propylene into cumene without separating the propane from the propane/propylene feed stream. The disclosed processing schemes and arrangements advantageously eliminate any separation of propylene from propane produced by a FCC process prior to using the combined propane/propane stream as a feed for a cumene alkylation process. A bottoms stream from the cumene column of the cumene alkylation process can be used and an absorption solvent in the FCC process thereby eliminating the need for a transalkylation reactor and a DIPB/TIPB column. | 04-30-2009 |
| 20090143629 | Cracking C5+ Paraffins to Increase Light Olefin Production - A process for increasing the light olefin production from light paraffins is presented. The process includes separating paraffins from olefin streams and separately processing the paraffins. | 06-04-2009 |
| 20090287030 | Oxygenate Conversion to Olefins with Dimerization and Metathesis - A processing scheme and system for enhanced light olefin production, particularly for increased relative yield of propylene, involves oxygenate conversion to olefins and subsequent oxygenate conversion effluent stream treatment including dimerization of ethylene to butene and metathesis of butenes and/or hexenes with ethylene. The processing scheme and system may further involve isomerization of at least a portion of 1-butene to 2-butene to produce additional propylene. | 11-19-2009 |
| 20100022810 | Process for Producing Propylene and Aromatic Hydrocarbons, and Producing Apparatus Therefor - It is an object of the present invention to provide an improved process whereby the yield structure of the components can be varied by a simple method, and the products can be produced stably and efficiently in a process for producing propylene and aromatic hydrocarbons from a hydrocarbon feedstock containing C | 01-28-2010 |
| 20100041930 | INTEGRATED PROPYLENE PRODUCTION - A process for the production of propylene, the process including: fractionating a hydrocarbon stream comprising n-butenes, isobutylene, and paraffins into at least two fractions including a light C | 02-18-2010 |
| 20100063336 | METHOD FOR PRODUCING LIGHT OLEFINS FROM METHANOL OR/AND DIMETHYL ETHER - The present invention provides a method for producing Lower olefin from the feed of methanol or/and dimethyl ether, characterized in that methanol or/and dimethyl ether are divided proportionally to be fed at 3 reaction zones; and the desired distribution of the olefin product is obtained by modulating the feeding ratio among the 3 reaction zones and the reaction conditions in each reaction zone. | 03-11-2010 |
| 20100099934 | HEXENE UPGRADING - Embodiments disclosed herein provide processes for upgrading the hexene stream to valuable end products, including ethers, high purity 1-hexene, and, alternatively, high purity isohexene. Hexene upgrading may be performed in embodiments disclosed herein by first removing isohexene from the admixture. The isohexene may undergo etherification with one or more alcohols, facilitating the separation of the isohexene (in the form of an ether) from the normal hexenes. Second, the normal hexenes may be isomerized to convert internal hexene olefins (2-hexenes and 3-hexenes) to the desired alpha olefin, 1-hexene. The 1-hexene may then be separated from unreacted components to yield a high purity 1-hexene product. | 04-22-2010 |
| 20100174126 | OLIGOMERIZATION PROCESS - A process for oligomerization of isobutene, the process including: feeding a hydrocarbon stream comprising n-butane, 1-butene, 2-butene, isobutane, and isobutene to a catalytic distillation reactor system comprising a hydroisomerization catalyst; feeding hydrogen to the catalytic distillation reactor system; concurrently in the catalytic distillation reactor system: contacting the 1-butene with the hydrogen in the presence of the hydroisomerization catalyst to convert at least a portion of the 1 -butene to 2-butene; separating the isobutane and the isobutene from the n-butane and the 2-butene; recovering the isobutane and the isobutene from the catalytic distillation reactor system as an overheads fraction; recovering the n-butane and the 2-butene from the catalytic distillation reactor system as a bottoms fraction; contacting the overheads fraction in an oligomerization reaction system with an oligomerization catalyst to convert a portion of the isobutene to oligomers. | 07-08-2010 |
| 20100331589 | INTEGRATED PROCESSES FOR PROPYLENE PRODUCTION AND RECOVERY - Processes utilizing the integration of (i) processes and the associated equipment used to purify and recover propylene from propane- and/or C | 12-30-2010 |
| 20110152592 | PROCESS FOR THE CONVERSION OF ALCOHOLS TO OLEFINS - A process for the conversion of an alcohol to an olefin is disclosed. The process may include: contacting at least one C2 to C5 alcohol with an organic acid in the presence of an esterification catalyst to convert at least a portion of the at least one C2 to C5 alcohol and the organic acid to an ester; at least one of catalytically and thermally degrading the ester to form an organic acid and an olefin. | 06-23-2011 |
| 20110201858 | PROCESS FOR PRODUCING CUMENE - In a process for producing cumene from acetone and benzene, a feed stream comprising acetone is contacted with hydrogen in the presence of a hydrogenation catalyst in a first reaction zone under hydrogenation conditions sufficient to convert at least part of the acetone to isopropanol and produce a first liquid effluent stream rich in isopropanol and a first vapor stream rich in unreacted hydrogen. Benzene is then added to at least part of the first liquid effluent stream, without intermediate purification of the first liquid effluent stream, and optionally to at least part of the first vapor stream, to form a second feed stream. The second feed stream is then contacted with an alkylation catalyst in a second reaction zone separate from the first reaction zone under alkylation conditions sufficient to maintain at least part of the second feed stream in the liquid phase and to cause at least part of the isopropanol in the second feed stream to react with the benzene to form cumene and water and produce a second effluent stream comprising at least cumene, water and unreacted benzene. Hydrogen is separated from the first vapor stream and/or the second effluent stream. At least part of the hydrogen is recycled to the first reaction zone and/or purged from the system. | 08-18-2011 |
| 20130116490 | PRODUCTION OF PARAFFIN FUELS USING RENEWABLE MATERIALS BY A CONTINUOUS HYDROTREATMENT COMPRISING A PRE-TREATMENT STEP - A process for hydrotreatment of a feed from renewable sources such as vegetable oils for the production of paraffinic hydrocarbons comprising pre-treatment by crystallisation and/or precipitation allowing the elimination of insoluble inorganic impurities under hydrotreatment conditions. The flow of the total feed is divided up into a certain number of different, part flows equal to the number of catalytic zones in the reactor, and the different part flows are injected in the successive catalytic zones in increasing proportions to produce an effluent containing paraffinic hydrocarbons. | 05-09-2013 |
| 20130116491 | PRODUCTION OF PARAFFIN FUELS USING RENEWABLE MATERIALS BY A CONTINUOUS HYDROTREATMENT COMPRISING A PRE-TREATMENT STEP UNDER HYDROGEN - A process for hydrotreatment of a feed from renewable sources such as vegetable oils for the production of paraffinic hydrocarbons comprising a pre-treatment step by crystallisation and/or precipitation and pre-hydrogenation of the feed under hydrogen allowing the elimination of insoluble inorganic impurities under hydrotreatment conditions and improved exothermal management of the reaction. The effluent is separated to a gas fraction and a liquid fraction containing paraffinic hydrocarbons, a portion of said liquid fraction is recycled. | 05-09-2013 |
| 20130144099 | METHOD FOR PRODUCING HYDROCARBON OIL AND SYSTEM FOR PRODUCING HYDROCARBON OIL - Hydrocarbon oil obtained by Fischer-Tropsch (FT) synthesis reaction using a catalyst within a slurry bed reactor is fractionated into a distilled oil and a column bottom oil in a rectifying column, part of the column bottom oil is flowed into a first transfer line that connects a column bottom of the rectifying column to a hydrocracker, at least part of the column bottom oil is flowed into a second transfer line branched from the first transfer line and connected to the first transfer line downstream of the branching point, the amount of the catalyst fine powder to be captured is monitored while the catalyst fine powder in the column bottom oil that flows in the second transfer line are captured by a detachable filter provided in the second transfer line, and the column bottom oil is hydrocracked within the hydrocracker. | 06-06-2013 |
| 20130217935 | PROCESS TO MAKE OLEFINS FROM METHANOL AND ISOBUTANOL - The present invention relates to a process for making essentially ethylene and propylene comprising:
| 08-22-2013 |
| 20130296620 | Hydrocarbon Conversion Process - The invention relates to processes for converting a mixture of hydrocarbon and oxygenate into products containing acetylene and carbon monoxide. The invention also relates to utilizing at least a portion of the acetylene and carbon monoxide for producing xylenes such as p-xylene, utilizing at least a portion of xylenes for producing polymeric fibers, and to equipment useful for these processes. | 11-07-2013 |
| 20140012054 | Hydrocarbon Conversion Process - The invention relates to methods and equipment for converting C | 01-09-2014 |
| 20140081061 | PROPYLENE VIA METATHESIS WITH LOW OR NO ETHYLENE - A process for producing propylene is disclosed, including: fractionating a mixed C4 hydrocarbon stream to recover a first fraction comprising isobutene and a second fraction comprising 2-butene; contacting the first fraction with a first metathesis catalyst in a first metathesis reaction zone; recovering an effluent from the first metathesis reaction zone comprising at least one of ethylene, propylene, unreacted isobutene, C5 olefins, and C6 olefins; contacting the second fraction and the ethylene in the effluent with a second metathesis catalyst in a second metathesis reaction zone; recovering an effluent from the second reaction zone comprising at least one of unreacted ethylene, propylene, unreacted 2-butene, fractionating the effluent from the first metathesis reaction zone and the effluent from the second metathesis reaction zone to recover an ethylene fraction, a propylene fraction, one or more C4 fractions, and a fraction comprising at least one of C5 and C6 olefins. | 03-20-2014 |
| 20140135545 | FLUID CATALYTIC CRACKING PROCESS - One exemplary embodiment can be a process for fluid catalytic cracking. The process can include providing a first feed including one or more heavy hydrocarbons to a riser of a riser-reactor, and obtaining a second feed from an oligomerization zone. Usually, the second feed includes one or more light alkene oligomeric hydrocarbons and is provided downstream from the first feed for producing propene. | 05-15-2014 |
| 20150376086 | Process for the Production of Xylenes - In a process for producing para-xylene, a feed stream comprising C | 12-31-2015 |
| 20150376088 | Process for the Production of Xylenes - In a process for producing para-xylene, a feed stream comprising C | 12-31-2015 |
| 20190144359 | Process for Converting a Natural Gas Feedstock with Inert Content to Chemical Intermediates | 05-16-2019 |
