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公开(公告)号：NO20005592L
公开(公告)日：2000-11-06
申请号：NO20005592
申请日：2000-11-06
Applicant: EXXON RESEARCH ENGINEERING CO
Inventor： ELLIS EDWARD STANLEY , LEWIS WILLIAM ERNEST , DANKWORTH DAVID CHARLES , GUPTA RAMESH
Abstract: A hydroprocessing process includes two cocurrent flow liquid reaction stages and one vapor stage, in which feed components are catalytically hydroprocessed by reacting with hydrogen. The liquid stages both produce a liquid and a hydrogen-rich vapor effluent, with most of the hydroprocessing accomplished in the first stage. The first stage vapor is also hydroprocessed. The hydroprocessed vapor and second stage vapor are cooled to condense and recover additional product liquid and produce an uncondensed hydrogen-rich vapor. After cleanup to remove contaminants, the hydrogen-rich vapor is recycled back into the first stage as treat gas. Fresh hydrogen is introduced into the second stage. This is useful for hydrotreating heteroatom-containing hydrocarbons.
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公开(公告)号：NO20005591D0
公开(公告)日：2000-11-06
申请号：NO20005591
申请日：2000-11-06
Applicant: EXXON RESEARCH ENGINEERING CO
Inventor： JUNG HENRY , MARKLEY GERALD EDWARD , GUPTA RAMESH , ELLIS EDWARD STANLEY
IPC: B01J10/00 , B01J8/04 , C10G9/00 , C10G11/00 , C10G15/00 , C10G17/00 , C10G31/00 , C10G45/00 , C10G47/00 , C10G49/22 , C10G65/00 , C10G69/00 , C10G
Abstract: A three stage hydroprocessing process includes two liquid and one vapor reaction stages, both of which produce an effluent comprising liquid and vapor. Both vapor effluents comprise vaporized hydrocarbonaceous material. Fresh hydrogen is used for the hydroprocessing in both liquid stages. The second stage liquid effluent comprises the product liquid. The first stage liquid effluent is the feed for the second stage. The first stage vapor effluent is hydroprocessed in the vapor stage and then cooled to condense and recover at least a portion of the processed vapor as additional product liquid.
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73.发明专利
公开(公告)号：CA2345081A1
公开(公告)日：2000-05-04
申请号：CA2345081
申请日：1999-10-20
Applicant: EXXON RESEARCH ENGINEERING CO
Inventor： GUPTA RAMESH
IPC: C10G65/02 , C10G45/02 , C10G45/32 , C10G45/44 , C10G45/58 , C10G47/00 , C10G67/04 , C10G73/02 , C10G45/00 , C10G25/00
Abstract: A hydroprocessing process for removing impurities from a feed (30) comprisin g a hydrocarbonaceous liquid comprises at least one cocurrent, upflow hydroprocessing reaction stage (18), a vapor-liquid contacting stage (20) an d a downflow hydroprocessing reaction stage (12). The feed and hydrogen react in the upflow stage (18) to produce a partially hydroprocessed liquid and vapor effluent. The vapor contacts a hydrocarbonaceous liquid in the contacting stage (20), which transfers impurities from the vapor into the liquid. The impurities-enriched contacting liquid mixes with the upflow stage liquid effluent and the combined liquid effluents react with hydrogen in the downfl ow reaction stage, to form a hydroprocessed product liquid and vapor effluent. Additional product liquid is recovered by cooling and condensing either or both the contacting and downflow stage vapor effluents.
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公开(公告)号：NO993242L
公开(公告)日：1999-06-29
申请号：NO993242
申请日：1999-06-29
Applicant: EXXON RESEARCH ENGINEERING CO
Inventor： GUPTA RAMESH
IPC: C10G45/04 , C10G45/50 , C10G45/52 , C10G47/16 , C10G47/18 , C10G49/00 , C10G65/02 , C10G65/04 , C10G65/12
Abstract: A process for hydroprocessing liquid petroleum and chemical streams in a single reaction vessel containing two or more hydroprocessing reaction stages. The liquid product from the first reaction stage is stripped of H2S, NH3 and other dissolved gases, then sent to the next downstream reaction stage. The product from the downstream reaction stage is also stripped of dissolved gases and sent to the next downstream reaction stage until the last reaction stage, the liquid product of which is stripped of dissolved gases and collected or passed on for further processing. The flow of treat gas is in a direction opposite the direction in which the reaction stages are staged for the flow of liquid.
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公开(公告)号：AU8279398A
公开(公告)日：1999-01-19
申请号：AU8279398
申请日：1998-06-30
Applicant: EXXON RESEARCH ENGINEERING CO
Inventor： GUPTA RAMESH , FREDERICK JEFFREY W , ELLIS EDWARD S , DANKWORTH DAVID C , TSANGARIS DIMITRIOS M
Abstract: A reactor is provided for reacting a liquid with a treat gas in the presence of a catalyst, the reactor comprising a continuous wall enclosing a first reaction zone, wherein the first reaction zone includes a catalyst for causing a desired reaction between the liquid and the treat gas; a liquid inlet above the first reaction zone for allowing a portion of the liquid to enter the reactor; a gas inlet below the first reaction zone for allowing a portion of the treat gas to enter the reactor; a liquid outlet below the first reaction zone for allowing a reacted portion of the liquid to exit the reactor; a gas outlet above the first reaction zone for allowing a portion of the treat gas to exit the reactor; and a gas bypass device in the first reaction zone for allowing a portion of the treat gas to bypass a portion of the first reaction zone, the gas bypass device including a gas bypass regulating device for regulating the amount of treat gas which bypasses the first reaction zone. In a preferred embodiment, a plurality of reaction zones are present, and a liquid distribution tray is disposed above each reaction zone. Preferably, the gas bypass device creates a hydrostatic seal with the liquid accumulating in the distribution tray so that the timing and extent of gas bypass is self-regulating based on predefined flooding conditions.
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Patent Agency Ranking
公开(公告)号：CA2290553A1
公开(公告)日：1999-01-07
申请号：CA2290553
申请日：1998-06-30
Applicant: EXXON RESEARCH ENGINEERING CO
Inventor： ELLIS EDWARD S , TSANGARIS DIMITRIOS M , GUPTA RAMESH , DANKWORTH DAVID C , FREDERICK JEFFREY W
Abstract: A reactor (1) is provided for reacting a liquid (5) with a treat gas (6) in the presence of a catalyst (4), the reactor (1) comprising a continuous wall (2) enclosing a first reaction zone (R1), wherein the first reaction zone (R1) includes a catalyst (4) for causing a reaction between the liquid (5) and the treat gas (6); a liquid inlet (7) above the first reaction zone for allowing an unreacted portion of the liquid to enter the reactor; a gas inlet (8) below the first reaction zone for allowing an unreacted portion of the treat gas to enter the reactor; a liquid outlet (9) below the first reaction zone for allowing a reacted portion of the liquid to exit the reactor; a gas outlet (10) above the first reaction zone for allowing a reacted portion of the treat gas to exit the reactor; and a liquid bypass device (17) in the first reaction zone for allowing a portion of the liquid to bypass a portion of the first reaction zone, the liquid bypass device (17) including a liquid bypass regulating device for regulating the amount of liquid which bypasses the first reaction zone.
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公开(公告)号：CA2290428A1
公开(公告)日：1999-01-07
申请号：CA2290428
申请日：1998-06-30
Applicant: EXXON RESEARCH ENGINEERING CO
Inventor： DANKWORTH DAVID C , TSANGARIS DIMITRIOS M , ELLIS EDWARD S , GUPTA RAMESH , FREDERICK JEFFREY W
Abstract: A reactor (1) is provided for reacting a liquid (5) with a treat gas (6) in the presence of a catalyst (4), the reactor (1) comprising a continuous wall (2) enclosing a first reaction zone (R1), wherein the first reaction zone (R1) includes a catalyst (4) for causing a desired reaction between the liquid (5) and the treat gas (6); a liquid inlet (7) above the first reaction zone (R1) for allowing a portion of the liquid (5) to enter the reactor (1); a gas inlet (8) below the first reaction zone (R1) for allowing a portion of the treat gas (6) to enter the reactor (1); a liquid outlet (9) below the first reaction zone (R1) for allowing a reacted portion of the liquid (5) to exit the reactor (1); a gas outlet (10) above the first reaction zone (R1) for allowing a portion of the treat gas (6) to exit the reactor (1); and a gas bypass device (17) in the first reaction zone (R1) for allowing a portion of the treat gas (6) to bypass a portion of the first reaction zone (R1), the gas bypass device (17) including a gas bypass regulating device for regulating the amount of treat gas, which bypasses the first reaction zone.
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公开(公告)号：CA2262370A1
公开(公告)日：1998-02-26
申请号：CA2262370
申请日：1997-08-22
Applicant: EXXON RESEARCH ENGINEERING CO
Inventor： GUPTA RAMESH , DANKWORTH DAVID C , SCHORFHEIDE JAMES J , ELLIS EDWARD S , FLEMING DENNIS D
Abstract: A reaction vessel for processing liquid petroleum or chemical streams wherein the stream flows countercurrent to the flow of a treat gas, such as a hydrogencontaining gas, in at least one interaction zone (r1, r2, or r3). The reaction vessel contains vapor, optionally liquid, passageways (VB1-5) to bypass one or more packed beds, preferably catalyst beds (r1-3). This permits more stable and efficient vessel operation.
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公开(公告)号：CA1226813A
公开(公告)日：1987-09-15
申请号：CA477122
申请日：1985-03-21
Applicant: EXXON RESEARCH ENGINEERING CO
Inventor： GUPTA RAMESH
IPC: B01J10/00
Abstract: The invention automatically provides for periodic surge flow or liquid slugs in the catalyst bed to insure that the catalyst is periodically fully wetted. Therefore, before dry spots develop in the bed and some catalyst particles are deprived of the liquid reactants, the aforesaid liquid pulse or slug will newel the catalyst. In accordance with applicant's invention, this desired periodic introduction of a liquid slug through a catalyst bed is accomplished by the provision of a plurality of automatically actuating and operating siphon means disposed and distributed across the area of the distributor tray means within the reactor.
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公开(公告)号：AU547540B2
公开(公告)日：1985-10-24
申请号：AU8015782
申请日：1982-02-03
Applicant: EXXON RESEARCH ENGINEERING CO
Inventor： GUPTA RAMESH
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