Patent
Multi-stage hydroprocessing in a single reaction vessel
Ramesh Gupta
- 16 Dec 1997
48
TL;DR: In this paper, a process for hydroprocessing liquid petroleum and chemical streams in a single reaction vessel (100) containing two or more hydroprocessing reaction stages (110a, 110b, 110c) is described.
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Abstract: A process for hydroprocessing liquid petroleum and chemical streams in a single reaction vessel (100) containing two or more hydroprocessing reaction stages (110a, 110b, 110c). The liquid product from the first stage (110a) is stripped of H2S, NH3 and other gases, then sent to the next downstream reaction zone (110b). The product from the downstream reaction zone (110b) is also stripped of dissolved gases and sent to the next downstream reaction stage (110c) until the last reaction stage (110c), 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 (110a, 110b, 110c) are staged for the flow of liquid.
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Citations
Patent
Two phase hydroprocessing
Michael D. Ackerson,Michael Steven Byars +1 more
- 23 Jun 1998
TL;DR: In this paper, the authors proposed a process where the need to circulate hydrogen through the catalyst is eliminated by mixing and/or flashing the hydrogen and the oil to be treated in the presence of a solvent or diluent in which the hydrogen solubility is "high" relative to the oil feed.
117
Patent
Multi-stage hydroprocessing with multi-stage stripping in a single stripper vessel
Ramesh Gupta
- 30 Dec 1997
TL;DR: In this article, a stripping stage (160a, 160b, 160c) is a separate stage, but all stages are contained in the same stripper vessel (200).
69
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Process for the desulfurization of petroleum feeds
Gary G. Podrebarac,Gary R. Gildert,Willibrord A. Groten +2 more
- 11 Feb 2000
TL;DR: In this paper, a two-stage process for the hydrodesulfurization of a cracked naphtha stream is described, where the H 2 S is removed between the stages to prevent recombinant mercaptans formation.
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Production of low sulfur/low aromatics distillates
Edward Stanley Ellis,Henry Jung,William Ernest Lewis +2 more
- 07 Dec 1999
TL;DR: In this paper, the authors describe a process for hydroprocessing a hydrotreated liquid distillate where the feedstream is fed to reaction vessel (R1) via line (10) along with a hydrogen-containing treat gas via line(12).
39
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Control system method and apparatus for two phase hydroprocessing
Michael D. Ackerson,Michael Steven Byars +1 more
- 24 Mar 2005
TL;DR: In this article, a continuous liquid phase hydroprocessing process, apparatus and process control systems, where the need to circulate hydrogen gas through the catalyst is eliminated, is presented, by mixing and flashing the hydrogen and the oil to be treated in the presence of a solvent or diluent in which the hydrogen solubility is high relative to the oil feed.
36
References
Patent
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Vladimir N Ipatieff,Pines Herman +1 more
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TL;DR: In this paper, a charge aromatic stream is treated to separate a C7-C8 stream, a benzene stream, and a heavier stream, at least a portion of the heavy stream is denuded to lower its content of fused polycyclic hydrocarbons.
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TL;DR: In this article, the major current processing concepts are presented with emphasis on single stage and once through processing concepts, and the types of catalysts available and their uses are discussed, including zeolite modifications and their applications.
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Patent
Integrated staged catalytic cracking and staged hydroprocessing process
Ramesh Gupta,Edward Stanley Ellis +1 more
- 07 Dec 1999
TL;DR: In this paper, the authors describe a catalytic cracking process that includes more than one catalytic step and integrates the cracking steps with hydroprocessing in order to maximize olefins production, distillate quality and octane level of the cracked product.
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Patent
Multi-stage hydroprocessing with multi-stage stripping in a single stripper vessel
Ramesh Gupta
- 30 Dec 1997
TL;DR: In this article, a stripping stage (160a, 160b, 160c) is a separate stage, but all stages are contained in the same stripper vessel (200).
69
Patent
Production of diesel fuel by hydrogenation of a diesel feed
Reilly James W,Hamilton Gary L +1 more
- 11 Feb 1992
TL;DR: In this article, a process for producing diesel fuel from a diesel hydrocarbon feed is described, where hydrogen is fed concurrently with the feed to a first hydrogenation zone in the presence of a hydrogenation catalyst.
57
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