公开(公告)号：US20240247198A1

公开(公告)日：2024-07-25

申请号：US18417219

申请日：2024-01-19

Applicant: UOP LLC

Inventor： Ashish Mathur ,  Debanjan Chakrabarti ,  Jeannie Mee Blommel ,  Richard K. Hoehn ,  Joel S. Paustian ,  Manuela Serban

IPC: C10G69/12

CPC classification number: C10G69/126 ,  C10G2300/1088 ,  C10G2300/4081 ,  C10G2400/08

Abstract: A process for oligomerizing olefins to distillate fuels which oligomerizes a recycle olefin stream with a charge olefin stream in a first-stage oligomerization reactor. The first-stage oligomerate is oligomerized in a second-stage oligomerzation reactor to provide a second-stage oligomerate stream. A recycle olefin stream is taken from said second-stage oligomerate stream.

公开(公告)号：US11555154B2

公开(公告)日：2023-01-17

申请号：US17468898

申请日：2021-09-08

Applicant: UOP LLC

Inventor： David A. Wegerer ,  Bradley P. Russell ,  Ashish Mathur ,  Hari S. Bajpai

IPC: C10G47/32 ,  C10G45/64 ,  C10G65/12

Abstract: The process removes hydrogen sulfide from hydrotreated gas by TSA. Hydrogen sulfide adsorbs on the adsorbent while allowing hydrogen in the hydrotreated gas to pass the adsorbent to provide a desulfided hydrogen gas stream and a sulfided adsorbent. A regenerant gas stream can be contacted with the sulfided adsorbent at a swing temperature to desorb hydrogen sulfide from the adsorbent into the regenerant gas stream. The regenerant gas stream can then be recycled to a hydrotreating reactor for processing biorenewable feed to provide hydrogen sulfide to the reactor. The desulfided gas stream can be purified to remove impurities such as carbon oxides and recycled to the hydrotreating reactor and/or used as the regenerant gas stream.

公开(公告)号：US20220112430A1

公开(公告)日：2022-04-14

申请号：US17465406

申请日：2021-09-02

Applicant: UOP LLC

Inventor： David A. Wegerer ,  James T. Wexler ,  Xin X. Zhu ,  Donald Eizenga ,  Rafael Alcala ,  Ashish Mathur ,  Gautam Pandey ,  Hari S. Bajpai

IPC: C10G3/00 ,  C10L1/08

Abstract: The process produces a diesel stream from a biorenewable feedstock by hydrotreating to remove heteroatoms and saturate olefins. The recycle gas is recycled to the hydrotreating reactor without removing hydrogen sulfide, which is needed in the biorenewable feed to keep the hydrotreating catalyst active. A purification unit can be utilized on a purge gas stream to purify the gas and improve hydrogen concentration in the recycle gas when added to the recycle gas.

公开(公告)号：US20250074843A1

公开(公告)日：2025-03-06

申请号：US18457222

申请日：2023-08-28

Applicant: UOP LLC

Inventor： Saikrishna Laxmirajam Gosangari ,  Ashish Mathur ,  Jeannie Mee Blommel

IPC: C07C1/24

Abstract: An ethanol dehydration process is provided in which the steam to ethanol ratio is between about 1.0 to 2.0 wt/wt and preferably about 1.5 wt/wt. Steam can be imported from outside the dehydration process such as from an oligomerization or dimerization reaction.

公开(公告)号：US20240247199A1

公开(公告)日：2024-07-25

申请号：US18417244

申请日：2024-01-19

Applicant: UOP LLC

Inventor： Ashish Mathur ,  Debanjan Chakrabarti ,  Jeannie Mee Blommel ,  Joel S. Paustian ,  Manuela Serban

IPC: C10G69/12

CPC classification number: C10G69/126 ,  C10G2300/1092 ,  C10G2300/4081 ,  C10G2400/08

Abstract: A process for oligomerizing olefins to distillate fuels which oligomerizes a recycle olefin stream with charge olefin streams in a first-stage oligomerization reactor. The first-stage oligomerate is oligomerized in a second-stage oligomerization reactor to provide a second-stage oligomerate stream. A recycle olefin stream is taken from said second-stage oligomerate stream. A dealkanizer column can be used to remove light alkanes that would be inert and accumulate in a recycle loop. The second-stage oligomer product stream is hydrogenated to produce fuels.

公开(公告)号：US20240182801A1

公开(公告)日：2024-06-06

申请号：US18443513

申请日：2024-02-16

Applicant: UOP LLC

Inventor： Saikrishna Laxmirajam Gosangari ,  Ashish Mathur ,  Jeannie Mee Blommel

IPC: C10G69/12

CPC classification number: C10G69/126 ,  C10G2300/4081 ,  C10G2300/807 ,  C10G2400/08

Abstract: An ethanol dehydration process is disclosed. The process comprises adding an amount of steam to a feed to the dehydration reactor to provide a charge stream. The steam stream is mixed with the feed to the dehydration reactor such that the steam to ethanol ratio is between about 0.5 to about 5.0 wt/wt. The charge stream is passed to a dehydration reactor to produce a dehydrated stream. Steam can be imported from outside the dehydration process such as from an oligomerization or dimerization reaction. Steam can be produced from the dehydrated stream.

公开(公告)号：US12234417B2

公开(公告)日：2025-02-25

申请号：US17954072

申请日：2022-09-27

Applicant: UOP LLC

Inventor： Ram Ganesh Rokkam ,  Amit Jain ,  Ashish Mathur ,  Nirlipt Mahapatra ,  Prasenjit Basu Sarkar ,  Sourabh Maithil

IPC: C10G61/02 ,  C10G63/04 ,  C10G69/08

Abstract: A feed stream of cyclic paraffins may be separated to obtain an overhead of methylcyclopentane or cyclohexane and a bottoms stream cyclohexane or methylcyclohexane. The overhead stream may be subjected to separation of normal paraffins from non-normal paraffins with the former being isomerized or the entire overhead stream may be isomerized. In a further embodiment, the bottoms stream may be subjected to steam cracking. In an additional embodiment, the feed stream of cyclic paraffins may be formerly subjected to aromatic saturation.

公开(公告)号：US20250059452A1

公开(公告)日：2025-02-20

申请号：US18799966

申请日：2024-08-09

Applicant: UOP LLC

Inventor： Ashish Mathur ,  Debanjan Chakrabarti ,  Joel S. Paustian ,  Jeannie Mee Blommel ,  Richard K. Hoehn

IPC: C10G50/00

Abstract: A process for oligomerizing an olefin stream comprising charging a light olefin vapor stream comprising ethylene to a first oligomerization reactor containing a first oligomerization catalyst to produce a first oligomerized stream. A heavy olefin liquid stream comprising C3-C8 olefin liquids stream is charged to a second oligomerization reactor containing a second oligomerization catalyst to produce a second oligomerized stream. The two oligomerized streams can be processed to recover fuel streams together.

公开(公告)号：US20240246887A1

公开(公告)日：2024-07-25

申请号：US18417225

申请日：2024-01-19

Applicant: UOP LLC

Inventor： Ashish Mathur ,  Debanjan Chakrabarti ,  Jeannie Mee Blommel ,  Richard K. Hoehn ,  Joel S. Paustian ,  Manuela Serban

IPC: C07C2/24 ,  C07C2/12 ,  C07C5/03 ,  C10L1/06

CPC classification number: C07C2/24 ,  C07C2/12 ,  C07C5/03 ,  C10L1/06 ,  C10L2270/04

Abstract: A process for oligomerizing olefin streams comprising sending olefin streams comprising a C2− olefin vapor stream and a C3+ olefin liquids stream to a first stage oligomerization reactor containing a solid acid oligomerization catalyst to produce a first stage oligomerized stream; oligomerizing said first-stage oligomerization stream in a second stage oligomerization reactor containing a metal catalyst to provide a second stage oligomerized stream.

公开(公告)号：US20240109822A1

公开(公告)日：2024-04-04

申请号：US18059807

申请日：2022-11-29

Applicant: UOP LLC

Inventor： Manuela Serban ,  Chunqing Liu ,  Ashish Mathur ,  Saikrishna Laxmirajam Gosangari ,  Charles Luebke ,  Eseoghene Jeroro ,  Chad R. Huovie

IPC: C07C5/03 ,  C07C1/24

CPC classification number: C07C5/03 ,  C07C1/24 ,  C07C2521/04

Abstract: An integrated process for hydrogenating olefins wherein the hydrogen stream is generated from electrolysis of water is described. Water is derived from a first reaction step wherein a first feed stream comprising oxygenated hydrocarbons is reacted to produce a first reacted product stream comprising olefins and a second reacted product stream comprising water. The second reacted product stream is electrolyzed to produce an electrolyzer product stream comprising hydrogen. Hydrogen is used to hydrogenate olefins. A paraffin stream can be obtained from the hydrogenated effluent.