PROCESS FOR DEMETALLATION AND DESULFURIZATION OF HEAVY HYDROCARBONS

    公开(公告)号:CA1132078A

    公开(公告)日:1982-09-21

    申请号:CA330830

    申请日:1979-06-29

    Abstract: PROCESS FOR DEMETALLATION AND DESULFURIZATION OF HEAVY HYDROCARBONS Disclosed is a multiple-stage catalytic process for hydrodemetallation and hydrodesulfurization of heavy hydrocarbon streams containing asphaltenes and a substantial amount of metals. The first stage of this process comprises contacting the feedstock in a first reaction zone with hydrogen and a demetallation catalyst comprising hydrogenation metal selected from Group VIB and/or Group VIII deposed on a large-pore, high surface area inorganic oxide support; the second stage of the process comprises contacting the effluent from the first reaction zone with a catalyst consisting essentially of hydrogenation metal selected from Group VIB deposed on a smaller pore, catalytically active support comprising alumina, said second stage catalyst having a surface area within the range of about 150 m2/gm to about 300 m2/gm, an average pore diameter within the range of about 90 .ANG. to about 160 .ANG., and the catalyst has a pore volume within the range of about 0.4 cc/gm to about 0.9 cc/gm.

    HYDROTREATING CATALYST AND PROCESS
    13.
    发明专利

    公开(公告)号:CA1187468A

    公开(公告)日:1985-05-21

    申请号:CA404559

    申请日:1982-06-07

    Abstract: Hydrotreating catalysts comprise a hydrogenating component and a support comprising at least one porous refractorv inorganic oxide, said catalyst having BET surface area of 150 to about 190 m2/g, nitrogen desorption pore volume of 0.8 to about 1.2 cc/g in micropores with radii up to 600 R, with at least 0.7 cc/g of such micropore volume in pores having radii ranging from 50 to 600 R, mercury penetration pore volume of 0.1 to about 0.5 cc/g in macropores with radii of 600 to 25,000 A and bulk density of about 0.3 to about 0.5 g/cc. Hydrotreating process comprises contacting a hydrocarbon feed susceptible to upgrading with hydrogen in the presence of the aforesaid catalysts under hydrotreating conditions. The catalyst and process are particularly useful in hydrotreating feeds comprising high metals or high metals and sulfur content materials.

    HYDRODEMETALLIZATION CATALYST AND PROCESS EMPLOYING SAME

    公开(公告)号:CA1133457A

    公开(公告)日:1982-10-12

    申请号:CA336465

    申请日:1979-09-27

    Abstract: A catalyst and hydrodemetallization process employing the catalyst are provided. The catalyst comprises a small amount of a single active original hydrogenation metal selected from Group VIB or Group VIII deposed on a large-pore, high-surface area support comprising catalytically active alumina and one or more oxides of phosphorus, said phosphorus being present in an amount within the range of about 7 wt.% to about 11 wt.%, calculated as P2O5 and based upon the weight of said support, and said catalyst having a surface area that is greater than 120 m2/gm, a pore volume that is greater than 0.7 cc/gm, and an average pore diameter that is greater than 12.5 nm (125 .ANG.).

    PROCESS FOR THE CRACKING OF HEAVY HYDROCARBON STREAMS

    公开(公告)号:CA1117456A

    公开(公告)日:1982-02-02

    申请号:CA318291

    申请日:1978-12-20

    Abstract: CIP OF S.N. 862,846 PROCESS FOR THE CRACKING OF HEAVY HYDROCARBON STREAMS of the Invention The process comprises: (a) contacting a heavy hydrocarbon stream containing metals, asphaltenes, nitrogen compounds, and sulfur compounds in a hydrotreating zone under hydrotreating conditions and in the presence of hydrogen with a hydrotreating catalyst comprising a hydrogenating component comprising at least the hydrogenating metals molybdenum and chromium, said hydrogenating metals being present in the elemental form, as oxides, as sulfides, or mixtures thereof, deposed on a large-pore, catalytically active alumina to reduce the metals content in said stream, to convert the asphaltenes, nitrogen compounds, and sulphur compounds in said stream, and to provide a hydrotreated product stream, said hydrotreating catalyst possessing a pore volume within the range of about 0.4 cc/gm to about 0.8 cc/gm, a surface area within the range of about 150 m2/gm to about 300 m2/gm, and an average pore diameter within the range of about 100 .ANG. (10 nm) to about 200 .ANG. (20 nm); and (b) catalytically cracking at least a portion of said hydrotreated product stream in a catalytic cracking zone under catalytic cracking conditions in the presence of a cracking catalyst to produce gasoline and distillates in improved yields. The hydrogenating component of the hydrotreating catalyst can contain also a small amount of cobalt. The process comprises, in addition, blending said hydrotreated product stream with a gas oil prior to being catalytically cracked in said catalytic cracking zone. The process comprises further contacting the heavy hydrocarbon stream in a demetallization zone under demetallization conditions and in the presence of hydrogen with a demetallization catalyst prior to contacting said stream in said hydrotreating zone with said hydrotreating catalyst.

    PROCESS FOR THE HYDROTREATING OF HEAVY HYDROCARBON STREAMS

    公开(公告)号:CA1102729A

    公开(公告)日:1981-06-09

    申请号:CA318313

    申请日:1978-12-20

    Abstract: PROCESS FOR THE HYDROTREATING OF HEAVY HYDROCARBON STREAMS of the Invention The process comprises contacting a heavy hydrocarbon stream containing metals and asphaltenes under suitable conditions and in the presence of hydrogen with a catalyst comprising a hydrogenating component comprising molybdenum and chromium, their oxides, their sulfides, or mixtures thereof on a large-pore, catalytically active alumina. The catalyst has a pore volume within the range of about 0.4 cc/gm to about 0.8 cc/gm, a surface area within the range of about 150 m2/gm to about 300 m2/gm, and an average pore diameter within the range of about 100 .ANG. (10 nm) to about 200 .ANG.(20 nm). The hydrogenating component can include cobalt and/or its oxide and/or its sulfide. The molybdenum is present in an amount within the range of about 5 wt.% to about 15 wt.%, calculated as MoO3 and based upon total catalyst weight, the chromium is present in an amount within the range of about 5 wt.% to about 20 wt.%, calculated as Cr2O3 and based upon the total catalyst weight, and the cobalt, when present, is there in an amount within the range of about 0.1 wt.% to about 5 wt.%, calculated as CoO and based upon the total catalyst weight.

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