PROCESS AND SYSTEM FOR THE PRODUCTION OF ISOPRENE

    公开(公告)号:MY156329A

    公开(公告)日:2016-02-15

    申请号:MYPI2014002551

    申请日:2010-07-29

    Abstract: DISCLOSED HEREIN IS A PROCESS FOR PRODUCING ISOPRENE THAT INCLUDES REACTING A MIXED C4 METATHESIS FEED STREAM (124) COMPRISING ISOBUTYLENE AND AT LEAST ONE OF 1-BUTENE AND 2-PENTENE IN A FIRST METATHESIS REACTOR (126) IN THE PRESENCE OF A FIRST METATHESIS CATALYST UNDER CONDITIONS SUFFICIENT TO PRODUCE AN INTERMEDIATE PRODUCT STREAM (128) 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 (192) COMPRISING ISOPRENE, AND SEPARATING THE ISOPRENE INTO AN ISOPRENE PRODUCT STREAM (196) USING FRACTIONATION. A SYSTEM USED IN PRODUCING ISOPRENE IS ALSO DISCLOSED.

    PROCESS AND SYSTEM FOR THE PRODUCTION OF ISOPRENE

    公开(公告)号:MY156328A

    公开(公告)日:2016-02-15

    申请号:MYPI2012000492

    申请日:2010-07-29

    Abstract: DISCLOSED HEREIN IS A PROCESS FOR PRODUCING ISOPRENE THAT INCLUDES REACTING A MIXED C4 METATHESIS FEED STREAM (124) COMPRISING ISOBUTYLENE AND AT LEAST ONE OF 1-BUTENE AND 2-PENTENE IN A FIRST METATHESIS REACTOR (126) IN THE PRESENCE OF A FIRST METATHESIS CATALYST UNDER CONDITIONS SUFFICIENT TO PRODUCE AN INTERMEDIATE PRODUCT STREAM (128) 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 (192) COMPRISING ISOPRENE, AND SEPARATING THE ISOPRENE INTO AN ISOPRENE PRODUCT STREAM (196) USING FRACTIONATION. A SYSTEM USED IN PRODUCING ISOPRENE IS ALSO DISCLOSED.

    PROPYLENE VIA METATHESIS WITH LOW OR NO ETHYLENE

    公开(公告)号:ZA201501433B

    公开(公告)日:2016-01-27

    申请号:ZA201501433

    申请日:2015-03-03

    Abstract: 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.

    Proceso para la isomerización de dobles enlaces de olefinas, para convertir al menos una porción de la olefina en su isómero

    公开(公告)号:CL2015001033A1

    公开(公告)日:2015-12-28

    申请号:CL2015001033

    申请日:2015-04-22

    Abstract: UN PROCESO PARA LA PRODUCCIÓN DE PROPILENO, QUE COMPRENDE: FRACCIONAR UNA CORRIENTE DE HIDROCARBUROS QUE COMPRENDE N-BUTENOS, ISOBUTENO Y PARAFINAS EN AL MENOS DOS FRACCIONES QUE INCLUYE UNA FRACCIÓN C4 LIGERA QUE COMPRENDE ISOBUTENO Y UNA FRACCIÓN C4 PESADA QUE COMPRENDE N-BUTENOS Y PARAFINAS, ALIMENTAR ETILENO Y LA FRACCIÓN C4 PESADA HACIA UN REACTOR DE LECHO FIJO QUE COMPRENDE UN CATALIZADOR DE METÁTESIS Y UN CATALIZADOR DE ISOMERIZACIÓN DE ÓXIDOS METALICOS BÁSICOS ACTIVADO QUE COMPRENDE UN AGENTE ESTABILIZADOR DE ESTRUCTURA, CONTACTAR LA FRACCIÓN C4 PESADA CON EL CATALIZADOR DE ISOMERIZACIÓN DE ÓXIDOS METALICOS BASICOS ACTIVADO PARA CONVERTIR AL MENOS UNA PORCIÓN DEL 1-BUTENO EN 2-BUTENO, Y CONTACTAR EI ETILENO Y AL MENOS UNA PORCIÓN DEL 2-BUTENO CON UN CATALIZADOR DE METATESIS PARA FORMAR UN PRODUCTO DE METÁTESIS QUE COMPRENDE PROPILENO, PARAFINAS, Y ETILENO SIN REACCIONAR, Y TODO EI 1 -BUTENO Y 2-BUTENO SIN REACCIONAR.

    METHOD, SYSTEM AND APPARATUS FOR FIRING CONTROL

    公开(公告)号:PH12014501389B1

    公开(公告)日:2015-09-28

    申请号:PH12014501389

    申请日:2014-06-18

    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.

    METHOD, SYSTEM AND APPARATUS FOR FIRING CONTROL

    公开(公告)号:PH12014501389A1

    公开(公告)日:2015-09-28

    申请号:PH12014501389

    申请日:2014-06-18

    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.

    PROPYLENE VIA METATHESIS WITH LOW OR NO ETHYLENE

    公开(公告)号:PH12015500512B1

    公开(公告)日:2015-04-27

    申请号:PH12015500512

    申请日:2015-03-09

    Abstract: 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.

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