公开(公告)号：US20200179889A1

公开(公告)日：2020-06-11

申请号：US16789462

申请日：2020-02-13

Applicant: Arkema France

Inventor： Michael S. DECOURCY ,  Christian LACROIX ,  Etienne BASTIEN

IPC: B01J4/00

Abstract: A method for uniformly distributing a process liquid within a process vessel includes providing a process liquid to a fouling-resistant liquid distributor installed within a process vessel having a cross-sectional area; causing rotational movement of the fouling-resistant liquid distributor; uniformly distributing the process liquid over the cross-sectional area within the process vessel; and simultaneously self-rinsing the fouling-resistant liquid distributor with a portion of the process liquid during uniform distribution. A system is also disclosed which includes a supply of process fluid, a stationary conduit and a liquid distribution head attached to the conduit. The liquid distribution head is motive, powered by a fluid, and includes at least one process liquid delivery port. The at least one process liquid delivery port is configured to provide a +10° or greater angle of liquid coverage when the liquid distribution head is moving.

公开(公告)号：US20180079706A1

公开(公告)日：2018-03-22

申请号：US15556308

申请日：2016-03-04

Applicant: Arkema France

Inventor： Sandeep JAIN ,  Christian LACROIX ,  Michel Jean FAUCONET

IPC: C07C51/44 ,  C07C51/25 ,  B01D5/00 ,  B01D3/10

CPC classification number: C07C51/44 ,  B01D3/10 ,  B01D5/0045 ,  C07C51/252 ,  C07C57/04

Abstract: The invention is directed to a process for recovering/purifying (meth)acrylic acid which does not use azeotropic solvent and is based on the use of two columns for purifying a reaction mixture comprising (meth)acrylic acid. The process according to the invention includes a dry vacuum pump condensation system, which makes it possible to reduce the amount of final aqueous discharges.

公开(公告)号：US20170283358A1

公开(公告)日：2017-10-05

申请号：US15452757

申请日：2017-03-08

Applicant: Arkema France

Inventor： Sandeep Jain ,  Christian LACROIX

IPC: C07C51/25 ,  C07C51/44

CPC classification number: C07C51/252 ,  C07C51/42 ,  C07C51/44 ,  G09F7/18 ,  G09F9/30 ,  G09F21/048 ,  G09F2007/1865 ,  C07C57/04

Abstract: The invention relates to the production of (meth)acrylic acid, and to implementation of a step of condensing water contained in a recycled gas effluent and/or in the air feed in a (meth)acrylic acid production process, which further includes a process for purifying a reaction mixture comprising (meth)acrylic acid without using azeotropic solvent and based on the use of two distillation columns.

公开(公告)号：US20160175796A1

公开(公告)日：2016-06-23

申请号：US14906298

申请日：2014-07-18

Applicant: ARKEMA FRANCE

Inventor： Michael S. DECOURCY ,  Christian LACROIX ,  Etienne BASTIEN

IPC: B01J4/00

Abstract: A method for uniformly distributing a process liquid within a process vessel includes providing a process liquid to a fouling-resistant liquid distributor installed within a process vessel having a cross-sectional area; causing rotational movement of the fouling-resistant liquid distributor; uniformly distributing the process liquid over the cross-sectional area within the process vessel; and simultaneously self-rinsing the fouling-resistant liquid distributor with a portion of the process liquid during uniform distribution. A system is also disclosed which includes a supply of process fluid, a stationary conduit and a liquid distribution head attached to the conduit. The liquid distribution head is motive, powered by a fluid, and includes at least one process liquid delivery port. The at least one process liquid delivery port is configured to provide a +10° or greater angle of liquid coverage when the liquid distribution head is moving.

Abstract translation: 一种用于在处理容器内均匀分配处理液体的方法包括：将处理液体提供给安装在具有横截面积的处理容器内的防污液体分配器; 引起防污液体分配器的旋转运动; 将处理液体均匀地分布在处理容器内的横截面积上; 并且在均匀分布期间同时用一部分处理液体自动冲洗防污液体分配器。 还公开了一种系统，其包括供应过程流体，固定导管和附接到导管的液体分配头。 液体分配头是动力的，由流体驱动，并且包括至少一个处理液体输送口。 所述至少一个处理液体输送端口构造成当液体分配头移动时提供+ 10°或更大的液体覆盖角。