31.
    发明专利
    未知

    公开(公告)号:NO20110244A1

    公开(公告)日:2011-03-02

    申请号:NO20110244

    申请日:2011-02-14

    Abstract: This invention relates to thioetherification processes for the removal of mercaptans in charge gas streams. In particular, the invention relates to thioetherification processes for the removal of mercaptans using a catalyst comprising palladium and silver.

    ELIMINACION DE BUTANO EN PROCEDIMIENTOS DE REFINADO DE C4.

    公开(公告)号:ES2328519T3

    公开(公告)日:2009-11-13

    申请号:ES06801905

    申请日:2006-08-21

    Abstract: Procedimiento para producir un buteno seleccionado, que comprende: (a) obtener una corriente de alimentación de C4 que comprende parafinas C4 y olefinas C4, (b) dividir la corriente de alimentación de C4 para formar una primera corriente que comprende un primer buteno y una segunda corriente que comprende un segundo buteno, (c) isomerizar al menos una parte de la segunda corriente para convertir una parte del segundo buteno en el primer buteno, y (d) recircular al menos algo de la parte isomerizada de la segunda corriente a la etapa (b) de división, en el que una parte de al menos una de la corriente de alimentación de C4 y la segunda corriente se hace pasar a través de una membrana de transporte facilitado para eliminar butanos, formando al menos una corriente de purga que comprende butanos.

    33.
    发明专利
    未知

    公开(公告)号:DE602006007234D1

    公开(公告)日:2009-07-23

    申请号:DE602006007234

    申请日:2006-08-21

    Abstract: Disclosed herein is a process for producing a selected butene, comprising obtaining a C4 feed stream comprising C4 paraffins and C4 olefins, splitting the C4 feed stream to form a first stream comprising a first butene and a second stream comprising a second butene, isomerizing at least a part of the second stream to convert a portion of the second butene to the first butene, and recycling at least some of the isomerized part of the second steam to the splitting step, wherein a portion of at least one of the C4 feed stream and the second stream is passed through a facilitated transport membrane to remove butanes, forming at least one purge stream comprising butanes. A process for the conversion of C4 olefins, comprising obtaining a C4 feed stream comprising C4 paraffins and C4 olefins, including 1-butene and 2-butene, and reacting the C4 feed stream in a metathesis reactor to form a second stream is also disclosed. The second stream is fractionated to form one or more product streams and a recycle stream primarily containing C4 olefins and C4 paraffins. The recycle stream and/or the C4 feed stream is passed through a facilitated transport membrane to remove butanes, forming at least one purge stream.

    METHOD, SYSTEM AND APPARATUS FOR FIRING CONTROL

    公开(公告)号:CA2694290A1

    公开(公告)日:2009-01-29

    申请号:CA2694290

    申请日:2008-07-24

    Abstract: Disclosed herein is a method of controlling the air to fuel ratio in a burner containing a venturi assembly. The venturi includes an air inlet, a primary fuel inlet with a converging section, a throat portion downstream from the converging section, a diverging section downstream from the throat portion, an outlet, and a secondary gas inlet disposed downstream from the converging section and upstream from the outlet. The method comprises introducing fuel into the fuel inlet, receiving air through the air inlet by inspiration, and feeding a gas through the secondary gas inlet, the flow rate and content of the gas fed through the secondary gas inlet being selected to result in a desired air to fuel ratio through the outlet. A method of firing a heater, a burner, a furnace and firing control systems also are disclosed.

    PROCESS AND SYSTEM FOR THE PRODUCTION OF ISOPRENE

    公开(公告)号:CA2769265C

    公开(公告)日:2017-12-12

    申请号:CA2769265

    申请日:2010-07-29

    Abstract: Disclosed herein is a process for producing isoprene that includes reacting a mixed C4 metathesis feed stream comprising isobutylene and at least one of 1-butene and 2-pentene in a first metathesis reactor in the presence of a first metathesis catalyst under conditions sufficient to produce an intermediate product stream comprising at least 30 wt. % 2-methyl-2-pentene based upon the olefin content of fresh feed in the mixed C4 feed stream, and at least one of ethylene and propylene, separating the 2-methyl-2-pentene, subjecting the separated 2-methyl-2-pentene to pyrolysis to produce a reaction product stream comprising isoprene, and separating the isoprene into an isoprene product stream using fractionation. A system used in producing isoprene is also disclosed.

    processo e sistema para a produção de isopreno

    公开(公告)号:BR112012002673A2

    公开(公告)日:2016-04-12

    申请号:BR112012002673

    申请日:2010-07-29

    Abstract: processo e sistema para produção de isopreno. a presente invenção se refere a um processo para produzir isopreno que reagir uma corrente de alimentação de metátese de c~ 4~ mista compreendendo isobutileno e pelo menos um de 1-buteno e 2-penteno em um primeiro reator de metátese na presença de um primeiro catalisador de metátese sob condições suficientes para produzir uma corrente de produto intermediário compreendendo pelo menos 30% por peso de 2-metil-2-penteno com base no conteúdo de olefina de alimentação fresca na corrente de alimentação de c~ 4~ mista, e pelo menos um de etileno e propileno, separar o 2-metil-2-penteno, submeter o 2-metil-2-penteno separado à pirólise para produzir uma corrente de produto reacional compreendendo isopreno, e separar o isopreno em uma corrente de produto de isopreno usando fracionamento. um sistema usado na produção de isopreno é também descrito.

Patent Agency Ranking