Heater and method of operation
    71.
    发明专利

    公开(公告)号:ZA200908708B

    公开(公告)日:2010-08-25

    申请号:ZA200908708

    申请日:2009-12-08

    Abstract: A furnace, firing pattern and method of operating a heater that employs a combination of hearth burners and wall burners for the cracking of hydrocarbons is described. The firing pattern leads to improvements in the uniformity of the coil metal temperatures and vertical heat flux profiles over the firebox elevation. The hearth burners operate with a stoichiometric excess of air while the wall burners operate with less than the stoichiometric amount of air.

    BATCH PROCESS AND SYSTEM FOR THE PRODUCTION OF OLEFINS

    公开(公告)号:CA2718763A1

    公开(公告)日:2009-12-03

    申请号:CA2718763

    申请日:2009-04-02

    Abstract: Disclosed herein is a process for producing an alpha olefin comprising ob-taining a feed stream comprising an internal olefin having a first carbon number and an alpha olefin having a first carbon number, isomerizing the feed stream to increase the quantity of the alpha olefin, fractionating, subjecting the overhead material from frac-tionation to catalytic metathesis to produce a mixed olefin effluent comprising an internal olefin having a second carbon number and other hydrocarbons, fractionating, preparing the first isomerization reactor and fractiona-tor to receive the olefin having a second car-bon number, isomerizing the internal olefin intermediate in the prepared first isomeriza-tion reactor, and fractionating the second isomerization effluent in the prepared first fractionator to separate the alpha olefin hav-ing the second carbon number from the in-ternal olefin having the second carbon num-ber. A corresponding system also is dis-closed, along with a heat pump that can be incorporated into the process.

    SYSTEM AND PROCESS FOR PRODUCING LINEAR ALPHA OLEFINS

    公开(公告)号:CA2739724A1

    公开(公告)日:2009-11-12

    申请号:CA2739724

    申请日:2009-04-02

    Abstract: Processes and systems for producing linear alpha olefins are described herein. One embodiment is a process comprising: a) separating a mixed butene stream comprising 1 -butene and 2-butene into an overhead 1 -butene stream and a bottoms 2-butene stream in a butene distillation column, a portion of the bottoms 2-butene stream being separated to form a butene reboiler stream that is heated and vaporized in a reboiler and returned to the butene distillation column, (b) subjecting at least a portion of the overhead 1 -butene stream from (a) to catalytic metathesis to produce an effluent including 3-hexene, (c) isomerizing 3-hexene from (b) to produce a mixed hexene stream comprising 1 -hexene, 2-hexene and 3-hexene, (d) separating the mixed hexene stream in a hexene fractionation tower to form a 1 -hexene vapor overhead stream that is condensed in a cooler and a bottoms stream comprising 2-hexene and 3-hexene, and (e) using heat obtained by condensing the 1 -hexene vapor overhead stream of (d) to heat the butene reboiler stream of (a). Another embodiment is a superfractionation process. Corresponding systems are also disclosed.

    PROCEDIMIENTO PARA LA HIDROGENACION SELECTIVA DE ALQUINOS Y/O DIENOS EN UNA CORRIENTE HODROCARBONADA QUE CONTIENE OLEFINAS.

    公开(公告)号:ES2318512T3

    公开(公告)日:2009-05-01

    申请号:ES05769218

    申请日:2005-07-12

    Abstract: Un procedimiento para la hidrogenación selectiva de alquino y/o dieno presentes en una corriente hidrocarbonada que contiene olefina, comprendiendo el procedimiento poner en contacto la alimentación hidrocarbonada que contiene al menos 10.000 ppm en peso de contenido de alquino y/o dieno con un catalizador en una primera zona de reacción bajo condiciones de hidrogenación selectiva, incluyendo dicho catalizador paladio y al menos un metal del Grupo IB incorporado en un soporte inorgánico, en el que el soporte tiene una superficie específica de 2 a 20 m 2 /g y un volumen de poros mayor de 0,4 cm 3 /g, al menos 90% del volumen de poros está contenido en poros con diámetros de poro mayores de 50 nm [500 Amsgtroms], y el volumen de poros de los poros con un diámetro de poro de 50 nm [500 Amsgtroms] a 100 nm [1.000 Amsgtroms] comprende de 1% a aproximadamente 2% del volumen de poros total.

    SYSTEM AND PROCESS FOR PRODUCING LINEAR ALPHA OLEFINS

    公开(公告)号:MY177627A

    公开(公告)日:2020-09-23

    申请号:MYPI2011000504

    申请日:2009-04-02

    Abstract: Processes and systems for producing linear alpha olefins are described herein. One embodiment is a process comprising: a) separating a mixed butene stream comprising 1 butene and 2-butene into an overhead 1 -butene stream and a bottoms 2-butene stream in a butene distillation column, a portion of the bottoms 2-butene stream being separated to form a butene reboiler stream that is heated and vaporized in a reboiler and returned to the butene distillation column, (b) subjecting at least a portion of the overhead 1 -butene stream from (a) to catalytic metathesis to produce an effluent including 3-hexene, (c) isomerizing 3- hexene from (b) to produce a mixed hexene stream comprising 1 -hexene, 2-hexene and 3- hexene, (d) separating the mixed hexene stream in a hexene fractionation tower to form a 1 -hexene vapor overhead stream that is condensed in a cooler and a bottoms stream comprising 2-hexene and 3-hexene, and (e) using heat obtained by condensing the 1 -hexene vapor overhead stream of (d) to heat the butene reboiler stream of (a). Another embodiment is a super fractionation process. Corresponding systems are also disclosed. (FIG. 4)

    OLEFIN ISOMERIZATION AND METATHESIS CATALYST

    公开(公告)号:PH12015500054A1

    公开(公告)日:2018-02-05

    申请号:PH12015500054

    申请日:2015-01-09

    Abstract: A process for the production of propylene, the process including: contacting ethylene and a hydrocarbon stream comprising 1-butene and 2-butene with a bifunctional isomerization-metathesis catalyst to concurrently isomerizes 1-butene to 2-butene and to form a metathesis product comprising propylene; wherein the bifunctional isomerization- metathesis catalyst comprises: a catalyst compound may include at least one element selected from tungsten, tantalum, niobium, molybdenum, nickel, palladium, osmium, iridium, rhodium, vanadium, ruthenium, and rhenium for providing metathesis activity on a support comprising at least one element from Group IA, HA, HB, and IIIA of the Periodic Table of the Elements; wherein an exposed surface area of the support provides both isomerization activity for the isomerization of 1 -butene to 2-butene; and reactive sites for the adsorption of catalyst compound poisons. In other embodiments, the catalyst compound may include at least one element selected from aluminum, gallium, iridium, iron, molybdenum, nickel, niobium, osmium, palladium, phosphorus, rhenium, rhodium, ruthenium, tantalum, titanium, tungsten, and vanadium.

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