[미국특허]
Three-catalyst process for the hydrotreating of heavy hydrocarbon streams
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C10G-045/08
C10G-065/04
출원번호
US-0371815
(1982-04-26)
발명자
/ 주소
Hensley
Jr. Albert L. (Munster IN) Quick Leonard M. (Naperville IL)
출원인 / 주소
Standard Oil Company (Indiana) (Chicago IL 02)
인용정보
피인용 횟수 :
41인용 특허 :
5
초록▼
There is disclosed a process for hydrotreating a heavy hydrocarbon stream containing metals, asphaltenes, nitrogen compounds, and sulfur compounds to reduce the contents of these contaminants. The process comprises contacting said stream in the presence of hydrogen and under suitable hydrotreating c
There is disclosed a process for hydrotreating a heavy hydrocarbon stream containing metals, asphaltenes, nitrogen compounds, and sulfur compounds to reduce the contents of these contaminants. The process comprises contacting said stream in the presence of hydrogen and under suitable hydrotreating conditions in sequence with a first catalyst in a first reaction zone, a second catalyst in a second reaction zone, and a third catalyst in a third reaction zone. The first catalyst comprises a Group VIB metal and/or a Group VIII metal on a porous inorganic oxide support; the second catalyst consists essentially of at least one hydrogenation metal selected from Group VIB deposed on a support material comprising alumina; and the third catalyst comprises a hydrogenating component comprising molybdenum, chromium, and cobalt on a large-pore, catalytically-active alumina. Each catalyst has specific physical properties.
대표청구항▼
A process for hydrotreating a heavy hydrocarbon stream containing metals, asphaltenes, nitrogen compounds, and sulfur compounds to reduce the contents of metals, asphaltenes, nitrogen compounds, and sulfur compounds in said stream, which process comprises contacting said stream in a first reaction z
A process for hydrotreating a heavy hydrocarbon stream containing metals, asphaltenes, nitrogen compounds, and sulfur compounds to reduce the contents of metals, asphaltenes, nitrogen compounds, and sulfur compounds in said stream, which process comprises contacting said stream in a first reaction zone in the presence of hydrogen and under suitable hydrotreating conditions with a first catalyst comprising a hydrogenating component selected from the group consisting of a metal of Group VIB of the Periodic Table of Elements, a metal of Group VIII, and a mixture thereof deposed upon a porous inorganic oxide support, said hydrogenating component being present in the elemental form, as the oxide, as the sulfide, or mixtures thereof and said first catalyst having a surface area of about 120 m2/gm to about 400 m2/gm, a pore volume of about 0.7 cc/gm to about 1.5 cc/gm, and an average pore diameter within the range of about 12.5 nm (125 Å) to about 35 nm (350 Å) to provide an effluent from said first reaction zone; contacting said effluent from said first reaction zone in a second reaction zone in the presence of hydrogen and under suitable hydrotreating conditions with a second catalyst consisting essentially of at least one active original hydrogenation metal selected from Group VIB of the Periodic Table of Elements deposed on a catalytically-active support comprising alumina, said metal of Group VIB being in the elemental form, as the oxide, as the sulfide, or a mixture thereof, and said second catalyst having a surface area within the range of about 150 m2/gm to about 300 m2/gm, a majority of its pore volume in pore diameters within the range of about 8 nm (80 Å) to about 13 nm (130 Å), and a pore volume within the range of about 0.4 cc/gm to about 0.9 cc/gm to provide an effluent from said second reaction zone; and contacting said effluent from said second reaction zone in the presence of hydrogen and under suitable hydrotreating conditions with a third catalyst comprising (1) the metals of molybdenum, chromium, and cobalt, (2) their oxides, (3) their sulfides, or (4) mixtures thereof deposed on a large-pore, catalytically-active alumina, said third catalyst having 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 10 nm (100 Å) to about 20 nm (200 Å).
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