公开(公告)号：US20230139652A1

公开(公告)日：2023-05-04

申请号：US17912271

申请日：2020-09-16

申请人： CHINA PETROLEUM & CHEMICAL CORPORATION ,  SHANGHAI RESEARCH INSTITUTE OF PETROCHEMICAL TECHNOLOGY, SINOPEC

发明人： Hongyuan ZONG ,  Guozhen QI ,  Jing CAO ,  Xiaohong LI ,  Zhinan YU ,  Li WANG

IPC分类号： B01J8/18 ,  C07C1/24 ,  B01J35/00 ,  B01J8/34 ,  B01J29/85

摘要： The invention relates to a method for regulating the gas velocity of the empty bed in a fluidized bed, wherein solid catalysts are used as fluidized particles or as a part of fluidized particles, characterized in that the gas velocity of the empty bed μ of the reaction zone of the fluidized bed is measured, compared with the bed average catalyst density ρ of the solid catalysts in the reaction zone of the fluidized bed, the gas velocity of the empty bed μ being adjusted as required such that the gas velocity of the empty bed μ and the bed average catalyst density ρ satisfy the formula (I) below: ρ=0.356μ3−4.319μ2−35.57μ+M; wherein M=250−; where μ is provided in m/s and ρ is provided in kg/m3. The method can be used for the industrial production of lower olefin.

公开(公告)号：US11060038B2

公开(公告)日：2021-07-13

申请号：US16751030

申请日：2020-01-23

申请人： TOTAL RAFFINAGE FRANCE

发明人： Marc Bories ,  Patrick Leroy ,  Eusebius Gbordzoe

IPC分类号： B01J8/26 ,  B01J8/32 ,  B01J8/34 ,  C10G11/18 ,  B01J38/30 ,  B01J38/02 ,  B01J8/00 ,  B01J8/24 ,  C07C4/06

摘要： The present invention discloses a process for the catalytic cracking of a weakly coking feedstock having a Conradson carbon residue of 0.1% by weight and a hydrogen content of greater than 12.7% by weight, comprising at least a feedstock cracking zone, a zone for separating/stripping the effluents from the coked catalyst particles and a zone for regenerating said particles, characterized in that at least a solid carbon material in the fluidized state, having a carbon content equal to or greater than 80% by weight, is injected upstream of and/or during the catalyst regeneration step into a dense bed of coked catalyst.

公开(公告)号：US20210178387A1

公开(公告)日：2021-06-17

申请号：US17184509

申请日：2021-02-24

申请人： BOARD OF TRUSTEES OF MICHIGAN STATE UNIVERSITY

发明人： Patrick Kwon ,  Junghoon Yeom

IPC分类号： B01L3/00 ,  C04B35/65 ,  C04B35/01 ,  B01J19/00 ,  B81C99/00 ,  B32B18/00 ,  B01J8/00 ,  B01J8/34 ,  B01J19/02

摘要： The disclosure relates to microchemical (or microfluidic) apparatus as well as related methods for making the same. The methods generally include partial sintering of sintering powder (e.g., binderless or otherwise free-flowing sintering powder) that encloses a fugitive phase material having a shape corresponding to a desired cavity structure in the formed apparatus. Partial sintering removes the fugitive phase and produces a porous compact, which can then be machined if desired and then further fully sintered to form the final apparatus. The process can produce apparatus with small, controllable cavities shaped as desired for various microchemical or microfluidic unit operations, with a generally smooth interior cavity finish, and with materials (e.g., ceramics) able to withstand harsh environments for such unit operations.

公开(公告)号：US20210094010A1

公开(公告)日：2021-04-01

申请号：US17058330

申请日：2019-05-24

申请人： Technip Process Technology, Inc.

发明人： Paul Marchant ,  Raj Kanwar Singh ,  Millard Alamath Carter ,  Roberto Ellis ,  Dilip Dharia

IPC分类号： B01J8/34 ,  B01J19/32

摘要： A packing system includes a first packing element layer including a plurality of blades and a second packing element layer including a plurality of blades. The packing system includes intra-layer variation and/or inter-layer variation. Intra-layer variation includes (i) varying spacing between blades within the first and/or the second packing element layer, (ii) varying sizes of the blades within the first and/or the second packing element layer, and/or (iii) varying angle of inclination of the blades within the first and/or second packing element layer. Inter-layer variation includes the blades of the first packing layer having a first spacing, a first size and a first angle of inclination, and the blades of the second packing layer having a second spacing, a second size, and a second angle of inclination. The second spacing, size, and/or angle of inclination is different from the first spacing, size, and/or angle of inclination.

公开(公告)号：US10913043B2

公开(公告)日：2021-02-09

申请号：US16147054

申请日：2018-09-28

申请人： UOP LLC

发明人： Lev Davydov

IPC分类号： B01J8/18 ,  B01J8/34 ,  B01J8/00 ,  C07C15/08 ,  C07C2/64

摘要： This present disclosure relates to apparatuses for methylation of aromatics in an aromatics complex for producing a xylene isomer product. More specifically, the present disclosure relates to the use of riser slip reduction technology to improve the methanol feed and catalyst contacting which will improve the product yield rate.

公开(公告)号：US10589242B2

公开(公告)日：2020-03-17

申请号：US16346586

申请日：2017-10-25

申请人： Dow Global Technologies LLC

发明人： Matthew T. Pretz ,  Mark W. Stewart ,  Ben J. Freireich ,  Madhusudhan Kodam ,  Brien A. Stears

IPC分类号： B01J8/34 ,  B01J8/26 ,  B01J8/00 ,  C10G11/18

摘要： According to one or more embodiments, a fluid catalytic reactor may include a riser, a lower reactor portion, a transition portion, and a flow director. The riser may include a cross-sectional area, and the lower reactor portion may include a cross-sectional area. The transition portion may attach the riser to the lower reactor portion. The cross-sectional area of the riser may be less than the cross-sectional area of the lower reactor portion such that the transition portion is tapered inward from the lower reactor portion to the riser. The flow director may be positioned at least within an interior region of the transition portion. The flow director may include a body which affects the velocity profile of fluids moving from the lower reactor portion to the riser.

公开(公告)号：US20180311631A1

公开(公告)日：2018-11-01

申请号：US15967078

申请日：2018-04-30

申请人： IntraMicron, Inc. ,  Auburn University

发明人： Bruce Tatarchuk ,  David Scarborough ,  Paul Dimick ,  Hongyun Yang

IPC分类号： B01J8/34 ,  B01J8/00 ,  B01J4/00 ,  B01J8/02

CPC分类号： B01J8/34 ,  B01J4/001 ,  B01J8/008 ,  B01J8/0242 ,  B01J8/0278 ,  B01J8/0285 ,  B01J8/0446 ,  B01J8/0453 ,  B01J8/0469 ,  B01J8/0492 ,  B01J8/0496 ,  B01J19/002 ,  B01J2208/00017 ,  B01J2208/00327 ,  B01J2219/0018 ,  B01J2219/00263 ,  B01J2219/00265 ,  C07B41/04 ,  C07B41/06 ,  C07B43/08 ,  C07D301/08

摘要： Described herein are improved chemical reactors for carrying out partial oxidation reactions. The chemical reactor permits the use of levels of oxygen above the lower explosion limit (LEL) typically used in partial oxidation reactions, which increases both volumetric reactivity and conversion per pass, resulting in reduced separation and reactant recycle costs. Also described are methods of using the reactors.

公开(公告)号：US09895647B2

公开(公告)日：2018-02-20

申请号：US14731598

申请日：2015-06-05

申请人： INSTITUTE OF NUCLEAR ENERGY RESEARCH, ATOMIC ENERGY COUNCIL, EXEC. YUAN, R.O.C.

发明人： Yau-Pin Chyou ,  Po-Chuang Chen ,  Hung-Te Hsu ,  Keng-Tung Wu

IPC分类号： B01D53/12 ,  B01D53/34 ,  B01D53/62 ,  B01D53/83 ,  B01J8/34 ,  B01J8/36

CPC分类号： B01D53/12 ,  B01D53/346 ,  B01D53/62 ,  B01D53/83 ,  B01D2257/504 ,  B01D2258/0283 ,  B01J8/34 ,  B01J8/36 ,  Y02C10/04

摘要： The present invention provides a method for dynamically controlling the circulation rate of solids in an interconnected fluidized bed. When an interconnected fluidized bed is operating, it is available to control the circulation rate of solids by adopting the steps of adjusting the height difference between the orifice on the weir and the bottom surface of the bed region, adjusting the cross-sectional area of the above orifice, or adjusting the height of the above weir. By using multiple ways, the circulation rate of solids can be improved substantially. In addition, the curve of circulation rate of solids can be converged to the maximum circulation rate of solids effectively.

公开(公告)号：US20170341045A1

公开(公告)日：2017-11-30

申请号：US15677131

申请日：2017-08-15

申请人： Chevron Phillips Chemical Company LP

发明人： Elizabeth A. Benham ,  Max P. McDaniel

IPC分类号： B01J6/00 ,  B01J8/36 ,  B01J8/18 ,  B01J8/34 ,  B01J31/14 ,  B01J31/22

CPC分类号： B01J6/004 ,  B01J8/1827 ,  B01J8/1836 ,  B01J8/34 ,  B01J8/36 ,  B01J31/143 ,  B01J31/2295 ,  B01J2208/00176 ,  B01J2208/0053 ,  B01J2208/00548 ,  B01J2208/0084 ,  B01J2208/00938 ,  B01J2219/182 ,  B01J2531/48

摘要： The present invention discloses a continuous calcination vessel which can be used to prepare calcined chemically-treated solid oxides from solid oxides and chemically-treated solid oxides. A process for the continuous preparation of calcined chemically-treated solid oxides is also provided. Calcined chemically-treated solid oxides disclosed herein can be used in catalyst compositions for the polymerization of olefins.

公开(公告)号：US20170259238A1

公开(公告)日：2017-09-14

申请号：US15605074

申请日：2017-05-25

申请人： Dow Global Technologies LLC

发明人： Matthew T. Pretz

IPC分类号： B01J8/34

CPC分类号： B01J8/34 ,  B01J8/0055 ,  B01J2208/00991 ,  C07C5/333 ,  C10G11/08 ,  C07C11/06

摘要： A fluidized catalyst stripping unit for displacing entrained gas from catalyst particles comprising: a vessel housing a two stage cyclonic separation section which comprises one or more primary cyclonic separation devices and one or more secondary cyclones; a stripping section which comprises internals; and an inlet in fluid communication with a catalytic reactor to feed a particulate-fluid suspension to the two stage cyclonic separation section; wherein each primary cyclonic separation device comprises an internal cylindrical surface to separate a major fraction of the particulates from the suspension and form a vortex of reduced particulate content; a particulate discharge outlet from each secondary cyclone to the stripping section; wherein the particulate discharge outlet of the secondary cyclone is submerged in a catalyst bed located above the stripper internals, and wherein the stripping section comprises one or more bubble breaking grids within the catalyst bed and above the stripping internals is provided.