公开(公告)号：US11578034B2

公开(公告)日：2023-02-14

申请号：US16496497

申请日：2018-03-07

Applicant: SABIC Global Technologies B.V.

Inventor： Mohammed Bismillah Ansari ,  Vijay Dinkar Bodas ,  Guillermo Leal

IPC: C07C273/04 ,  C07C269/00 ,  C07C273/14 ,  C07D317/36 ,  C01C1/08

Abstract: Systems and methods for integrated glycerol carbonate and/or urea production. This disclosure pertains to development of a process for production of glycerol carbonate and/or urea from ammonia, carbon dioxide and glycerol. The process integrates glycerol carbonate production into a urea production process. The urea produced in the production facility may be used to produce glycerol carbonate by reacting urea with glycerol. The ammonia generated by glycerol carbonate production may be recycled back to urea production. Unreacted urea from the glycerol carbonate production may be separated and recycled to the urea product stream. The systems and methods can reduce the cost for urea production and increase product value of the excessive glycerol produced from other chemical plants.

公开(公告)号：US11518951B2

公开(公告)日：2022-12-06

申请号：US16981189

申请日：2019-03-18

Applicant: SABIC Global Technologies B.V. ,  Saudi Arabian Oil Company

Inventor： Guillermo Leal ,  Naif Mohammed Al-Naddah Al-Otaibi ,  Kareemuddin Mahaboob Shaik ,  Mohammed Bismillah Ansari ,  Vijay Dinkar Bodas

IPC: C10L1/16 ,  C07C5/05 ,  C07C7/00 ,  C07C7/04 ,  C07C7/13 ,  C07C29/04 ,  C10L10/10 ,  C10L1/182

Abstract: A method of producing a fuel additive includes passing a feed stream comprising C4 hydrocarbons through a hydrogenation unit producing a hydrogenated stream; passing the hydrogenated stream through a distillation unit producing a first stream and a second stream; producing an isobutylene stream by passing the first stream through a molecular sieve unit; passing the isobutylene stream to a hydration unit as a feedstock for the fuel additive; and forming the fuel additive in the hydration unit.

公开(公告)号：US11248181B2

公开(公告)日：2022-02-15

申请号：US17042614

申请日：2019-04-11

Applicant: SABIC Global Technologies B.V. ,  Saudi Arabian Oil Company

Inventor： Guillermo Leal ,  Kareemuddin Mahaboob Shaik ,  Hiren Shethna ,  Naif Mohammed Al-Naddah Al-Otaibi ,  Mohammed Bismillah Ansari ,  Zhonglin Zhang

IPC: C10G67/04 ,  C07C7/08 ,  C10G69/06 ,  C10G69/04 ,  C07C5/22 ,  C10L1/182 ,  C10L1/185

Abstract: A method of producing a fuel additive includes passing a feed stream comprising C4 hydrocarbons through a butadiene extraction unit producing a first process stream; passing the first process stream through a methyl tertiary butyl ether unit producing a second process stream and a methyl tertiary butyl ether product; passing the second process stream through a hydration unit producing the fuel additive and a recycle stream; passing the recycle stream through a hydrogenation unit; and recycling the recycle stream to a steam cracker unit and/or to the feed stream

公开(公告)号：US20210246088A1

公开(公告)日：2021-08-12

申请号：US17264430

申请日：2019-09-16

Applicant: SABIC Global Technologies B.V.

Inventor： Guillermo Leal ,  Mohammed Bismillah Ansari ,  Vijay Dinkar Bodas ,  Sultan Eid Al-Otaibi ,  Mohammed A. Al-Ghamdi ,  Naif Mohammed Al-Naddah Al-Otaibi

IPC: C07C5/05 ,  C07C7/04 ,  C07C29/04

Abstract: A method for the production of a fuel additive includes passing a hydrocarbon stream comprising crude mixed C4 hydrocarbons through a first hydrogenation unit to produce a first product stream; passing the first product stream from the first hydrogenation unit to a methyl tert-butyl ether synthesis unit forming methyl tert-butyl ether and a byproduct stream; passing the byproduct stream through a first distillation unit to separate the byproduct stream into a first 1-butene stream, an isobutane stream, and a 2-butene and n-butane stream; forming a second product stream by passing the 2-butene and n-butane stream to a selective conversion unit; passing the second product stream into a second distillation unit to form an n-butane stream and a second 1-butene stream; passing the second 1-butene stream to a fuel additive production unit; and passing the first 1-butene stream to the fuel additive production unit to form the fuel additive.

公开(公告)号：US11008525B2

公开(公告)日：2021-05-18

申请号：US16493203

申请日：2018-03-19

Applicant: SABIC Global Technologies B.V.

Inventor： Vijay Dinkar Bodas ,  Sultan Eid Al-Otaibi ,  Guillermo Leal ,  Mohammed Bismillah Ansari ,  Naif Mohammed Al Naddah Al-Otaibi

IPC: C10L1/185 ,  C10L1/02 ,  C10L10/10

Abstract: A method of manufacturing an octane-boosting fuel additive, the method comprises reacting n-butyraldehyde, iso-butyraldehyde, or a combination comprising at least one of the foregoing with glycerol in the presence of an acidic catalyst to obtain an octane-boosting product mixture comprising 2-propyl-5-hydroxy-1,3-dioxane, 2-isopropyl-5-hydroxy-1,3-dioxane, 2-propyl-5-hydroxymethyl-1,3-dioxolane, 2-isopropyl-5-hydroxymethyl-1,3-dioxolane, or a combination comprising at least one of the foregoing.

公开(公告)号：US20210002185A1

公开(公告)日：2021-01-07

申请号：US16981183

申请日：2019-03-18

Applicant: SABIC Global Technologies B.V. ,  Saudi Arabian Oil Company

Inventor： Guillermo Leal ,  Naif Mohammed Al-Naddah Al-Otaibi ,  Mohammed Bismillah Ansari ,  Kareemuddin Mahaboob Shaik ,  Hiren Shethna ,  Zhonglin Zhang

IPC: C07C4/04 ,  C07C5/05 ,  C07C29/04 ,  C10L1/182 ,  C07C5/03 ,  C10L1/16 ,  C10L10/10

Abstract: A method of producing a fuel additive includes producing a first product stream comprising butadiene by passing a feed stream comprising C4 hydrocarbons through a steam cracker; transforming greater than or equal to 90 weight % of the butadiene in the first product stream into a second product stream by passing the first product stream through a first hydrogenation unit, wherein the second product stream comprises 1-butene, 2-butene, n-butane, isobutylene, isobutane, or a combination thereof; and converting the second product stream into the fuel additive by passing the second product stream through a fuel additive synthesis unit with an acid catalyst.

公开(公告)号：US20200157450A1

公开(公告)日：2020-05-21

申请号：US16633311

申请日：2018-07-27

Applicant: SABIC GLOBAL TECHNOLOGIES B.V. ,  SAUDI ARABIAN OIL COMPANY

Inventor： Guillermo Leal ,  Kareemuddin Mahaboob Shaik ,  Mohammed Bismillah Ansari ,  Hiren Shethna ,  Zhonglin Zhang

IPC: C10L10/10 ,  C07C41/06 ,  C07C1/22 ,  C07C5/25 ,  C07C29/04 ,  C10L1/182 ,  C07C6/04 ,  C07C4/06

Abstract: A method of producing a fuel additive includes passing a feed stream comprising C4 hydrocarbons through a methyl tertiary butyl ether unit producing a first process stream; passing the first process stream through a selective hydrogenation unit producing a second process stream; passing the second process stream through an isomerization unit producing a third process stream; and passing the third process stream through a hydration unit producing the fuel additive and a recycle stream.

公开(公告)号：US11820731B2

公开(公告)日：2023-11-21

申请号：US17434191

申请日：2020-02-27

Applicant: SABIC Global Technologies B.V.

Inventor： Vijay Dinkar Bodas ,  Guillermo Leal ,  Mohammed Bismillah Ansari

IPC: C07C29/151 ,  C07C29/80 ,  C07C41/34

CPC classification number: C07C29/1518 ,  C07C29/80 ,  C07C41/34

Abstract: A method of producing methanol is disclosed. The method involves adding alkali to crude methanol and distilling the crude methanol in one or more distillation columns. The method also includes flowing a vapor side draw from one of the distillation columns, where the vapor side draw comprises fusel oil substantially free from alkali. The fusel oil is recycled to a methanol synthesis reactor and/or a MTBE synthesis reactor.

公开(公告)号：US11407952B2

公开(公告)日：2022-08-09

申请号：US17045669

申请日：2019-04-18

Applicant: SABIC Global Technologies B.V. ,  Saudi Arabian Oil Company

Inventor： Guillermo Leal ,  Mohammed Bismillah Ansari ,  Kareemuddin Mahaboob Shaik ,  Hiren Shethna ,  Zhonglin Zhang

IPC: C10L1/185 ,  C07C5/05 ,  C07C29/04 ,  C10G65/12 ,  C10G69/04 ,  C10L1/182 ,  C10L10/10

Abstract: A method of producing a fuel additive includes: passing a first process stream comprising C4 hydrocarbons through a methyl tertiary butyl ether synthesis unit producing a first recycle stream; passing the first recycle stream through a hydration unit producing the fuel additive and a second recycle stream; passing the second recycle stream through a recycle hydrogenation unit and a deisobutanizer unit; and recycling the second recycle stream to the methyl tertiary butyl ether synthesis unit.

公开(公告)号：US11370729B2

公开(公告)日：2022-06-28

申请号：US16604215

申请日：2018-05-01

Applicant: SABIC Global Technologies B.V.

Inventor： Mohammed Bismillah Ansari ,  Vijay Dinkar Bodas ,  Guillermo Leal ,  Sultan Al-Otaibe

IPC: C07C5/333 ,  B01J8/00 ,  B01J8/02 ,  B01J23/26 ,  B01J23/62 ,  B01J38/02

Abstract: Systems and methods of dehydrogenating a hydrocarbon in a fixed bed dehydrogenation unit. A method for dehydrogenating a hydrocarbon is applied to a fixed bed reactor. The hydrocarbon flows to a fixed bed reactor to be dehydrogenated in presence of a catalyst in the fixed bed reactor. The catalyst in the fixed bed reactor is then regenerated. The period for dehydrogenation, the period for catalyst regeneration and the period for total slack time are controlled such that total slack time is less than both half of the period for dehydrogenation and half of the period for regeneration. One of the advantages of the process comes from optimization of the slack time, thereby increasing the catalyst utilization rate and number of reactors concurrently online.