公开(公告)号：US20190106515A1

公开(公告)日：2019-04-11

申请号：US16212126

申请日：2018-12-06

Applicant: Chevron Phillips Chemical Company LP

Inventor： Anurag GUPTA ,  Anne M. BALINSKY ,  Robert R. MCELVAIN ,  John D. STEWART

IPC: C08F110/02 ,  B01J4/00 ,  B01J8/00 ,  C08F2/00 ,  C08F2/01 ,  B01J4/02 ,  C08F10/02

Abstract: A process is described for introducing a catalyst into a polymerization zone by detecting one or a combination of (i) a change in a concentration of the catalyst in a catalyst feed stream upstream of the polymerization zone, (ii) a change in a concentration of monomer in the polymerization zone, and (iii) a change in a polymer production rate of the polymerization zone, adjusting a first catalyst flow rate of the catalyst in the catalyst feed stream to a second catalyst flow rate based on the one or a combination of (i), (ii), and (iii), and introducing the catalyst into the polymerization zone downstream of a location in the catalyst feed stream where the step of adjusting is performed. A catalyst injection system for carrying out such a process is also provided.

公开(公告)号：US10226757B2

公开(公告)日：2019-03-12

申请号：US15110229

申请日：2015-01-19

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY ,  HANWHA CHEMICAL CORPORATION

Inventor： Won Choon Choi ,  Yong Ki Park ,  Woo Hyung Lee ,  Hwi Min Seo ,  Na Young Kang ,  Joo Hee Han ,  Dong Ho Lee ,  Gui Ryong Ahn ,  Gil Ho Kim

IPC: B01J23/755 ,  B01J10/00 ,  B01J37/02 ,  B01J23/72 ,  B01J35/02 ,  C01B33/107 ,  B01J4/00 ,  C01B33/06 ,  B01J21/06

Abstract: A method for preparing trichlorosilane according to an embodiment of the present invention comprises the steps of: supplying surface-modified metal silicide and metal grade silicon to a reaction unit; supplying silicon tetrachloride and hydrogen to the reaction unit; and supplying a product, which is generated by a reaction of metal grade silicon, silicon tetrachloride, and hydrogen in the presence of metal silicide in the reaction unit, to a separation unit, and separating a trichlorosilane component. In cases where a silicon tetrachloride hydrochlorination reaction is performed using the method for preparing trichlorosilane according to the embodiment of the present invention, the yield of trichlorosilane can be raised.

公开(公告)号：US10213759B2

公开(公告)日：2019-02-26

申请号：US15029024

申请日：2014-02-20

Applicant: SPINCHEM AB

Inventor： Emil Byström ,  Henrik Scherman ,  Lars Eklund ,  Knut Irgum

IPC: B01J19/18 ,  B01J8/02 ,  C12N11/00 ,  B01F7/16 ,  B01F7/32 ,  B01F13/10 ,  B01J8/20 ,  B01J19/00 ,  B01J8/04 ,  B01J8/08 ,  B01J8/10 ,  B01J4/00 ,  B01J8/00

Abstract: The present invention relates to the field of biological and chemical transformation as well as physical and chemical trapping. More specifically, the invention relates to a new reactor arrangement for performing, by means of at least one solid reaction member, biological or chemical transformation, or physical or chemical trapping from or release of agents to, a fluidic medium. The reactor arrangement is comprised of an auxiliary reactor having a transformation device and a main reactor. The invention also provides an auxiliary reactor adapted for being connected to a main reactor, a method of using such a reactor arrangement, as well as a process involving the reactor arrangement.

公开(公告)号：US10201792B2

公开(公告)日：2019-02-12

申请号：US15572843

申请日：2016-05-12

Applicant: SABIC Global Technologies B.V.

Inventor： Arijit Ganguli ,  Vinod S. Nair ,  Ramsey Bunama

IPC: B01J4/00 ,  B01J8/02

Abstract: A fixed bed reactor for cyclic, catalytic dehydrogenation of hydrocarbons, such as alkanes and a reactor-internal device for improving distribution of hydrocarbon feed into the fixed catalyst bed of the reactor. The device comprises a vertical deflector plate with multiple horizontal slits and a frustum cone with multiple perforations on the lateral surface, connected to the bottom end of the plate. The reactor includes a main horizontal reaction vessel containing a fixed catalyst bed and a cactus-shaped inlet assembly sub-divided into three inlets at the upper half portion to supply fluid streams, including hydrocarbon feed, to the catalyst bed. The distributor device is positioned inside a main central vertical arm of the inlet assembly form by the convergence of the three inlets. Various embodiments of the distributor device where the slit thicknesses, distance between slits, perforation diameter, distance between perforations are varied, are also provided.

公开(公告)号：US20190022603A1

公开(公告)日：2019-01-24

申请号：US15792561

申请日：2017-10-24

Applicant: BESTWAY INFLATABLES & MATERIAL CORP.

Inventor： Shuiyong HUANG ,  Wenhua HU ,  Jinlin CHEN

IPC: B01F1/00 ,  C02F1/68 ,  B01J4/00 ,  B01F13/00

Abstract: A floating chemical dispenser is provided, which includes: a body portion having a first chamber for receiving solid chemicals, a second chamber for receiving a floating member, and at least one first hole for communicating the first chamber with an external environment, an opening is disposed at one end of the body portion, and the opening is communicated with the first chamber; and a cover, configured to close the opening of the body portion; wherein the cover is detachably connected with the body portion via a first locking mechanism, and the first locking mechanism has a locking position and an unlocking position, and is configured to move between the locking position and the unlocking position via pressing and rotating the cover by a user, so as to control locking or unlocking of the cover and the body portion. Therefore, safety performance of the floating chemical dispenser can be improved.

公开(公告)号：US10173194B2

公开(公告)日：2019-01-08

申请号：US15456863

申请日：2017-03-13

Applicant: Chevron U.S.A. Inc.

Inventor： Huping Luo ,  Arthur William Etchells, III ,  Donald Henry Mohr ,  Hye Kyung Cho Timken ,  Moinudden Ahmed ,  Krishniah Parimi ,  Bong Kyu Chang ,  Michael John Girgis

IPC: B01J19/24 ,  B01J14/00 ,  C07C2/62 ,  B01F5/06 ,  B01F5/10 ,  B01F13/10 ,  C10G29/20 ,  B01D17/02 ,  B01J19/00 ,  B01J4/00 ,  B01F15/02

Abstract: We provide systems for ionic liquid catalyzed hydrocarbon conversion that comprise a modular reactor comprising a plurality of mixer modules. The mixer modules may be arranged in series. One or more feed modules are disposed between the mixer modules. Such systems may be used for ionic liquid catalyzed alkylation reactions. Processes for ionic liquid catalyzed hydrocarbon conversion are also disclosed.

公开(公告)号：US20180361337A1

公开(公告)日：2018-12-20

申请号：US16061852

申请日：2016-12-05

Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

Inventor： Antonio COSCIA ,  Tobias KAISER

IPC: B01J4/00

Abstract: A system of product gas collecting conduits for a steam reformer, containing a plurality of reaction tubes within a reformer housing, for the production of synthesis gas, comprising: a) a product gas collecting conduit arranged outside the reformer housing of the steam reformer, b) several port tubes arranged along the length of the conduit for connecting one reaction tube each to the product gas collecting conduit, c) at least one windshield for the protection of the product gas collecting conduit against wind and draft.

公开(公告)号：US20180354784A1

公开(公告)日：2018-12-13

申请号：US15990946

申请日：2018-05-29

Applicant: Tsinghua University ,  HON HAI PRECISION INDUSTRY CO., LTD.

Inventor： LIANG LIU ,  QI CAI ,  QIU-QIU ZHENG

IPC: B82B3/00 ,  B01J4/00 ,  C01B32/162

CPC classification number: B82B3/0014 ,  B01J4/001 ,  B01J4/004 ,  B01J15/005 ,  B01J19/24 ,  B01J2219/1923 ,  B82B3/0004 ,  B82Y30/00 ,  B82Y40/00 ,  C01B32/16 ,  C01B32/162 ,  C01B2202/06

Abstract: A device for making a carbon nanotube array includes a chamber, a gas diffusing unit and a gas supplying pipe. The gas diffusing unit and the gas supplying pipe are in the chamber. The gas diffusing unit is a hollow structure and defines a hole and an outlet. The gas supplying pipe includes a first end and a second end opposite to the first end. The first end extends out of the chamber. The second end is in the chamber and connected to the hole.

公开(公告)号：US20180311631A1

公开(公告)日：2018-11-01

申请号：US15967078

申请日：2018-04-30

Applicant: IntraMicron, Inc. ,  Auburn University

Inventor： Bruce Tatarchuk ,  David Scarborough ,  Paul Dimick ,  Hongyun Yang

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

CPC classification number: 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

Abstract: 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：US10112164B2

公开(公告)日：2018-10-30

申请号：US15966866

申请日：2018-04-30

Applicant: Woven Metal Products, Inc.

Inventor： Robert Lee Lasser

IPC: B01J4/00

Abstract: The invention is directed to a tray deck for use in a vessel and a method of repairing a damaged tray deck. The method includes coupling at least one tray deck orifice repair device to an upper surface of the damaged tray deck such that void of each of the at least one tray deck repair devices is aligned with each of the plurality of orifices on the tray deck. The at least one tray deck orifice repair device has at least one anti-spin tab extending from an edge thereof, and the at least one tray deck orifice repair device is coupled with a valve.