公开(公告)号：US10604456B2

公开(公告)日：2020-03-31

申请号：US16134363

申请日：2018-09-18

Applicant: TOTAL RESEARCH & TECHNOLOGY FELUY ,  IFP Energies nouvelles

Inventor： Kirill Drobyshev ,  Vincent Coupard ,  Jean-Christophe Gabelle ,  Nikolai Nesterenko ,  Christophe Thille

IPC: C07C1/24 ,  C07C7/04 ,  B01J29/65 ,  B01D3/14 ,  C07C5/27

Abstract: This invention relates to a method for dehydration of alcohols into olefins comprising an improved step for recovery of unreacted alcohol.

公开(公告)号：US11358911B2

公开(公告)日：2022-06-14

申请号：US17413080

申请日：2019-11-27

Applicant: IFP Energies nouvelles ,  TOTAL RESEARCH & TECHNOLOGY FELUY

Inventor： Kirill Drobyshev ,  Vincent Coupard ,  Nikolai Nesterenko ,  Jean-Christophe Gabelle

IPC: C07C1/24 ,  B01J19/24

Abstract: A process for dehydrating an ethanol feedstock to give ethylene, includes:
a) a vaporization stage;
b) a heating stage;
c) a dehydration stage in a multitubular reactor comprising tubes having a length of between 2 and 4 m, said tubes comprising a, preferably zeolitic, dehydration catalyst, the feedstock having an inlet temperature of greater than 400° C. and less than 550° C. and an inlet pressure of between 0.8 and 1.8 MPa, the heat transfer fluid having an inlet temperature of greater than 430° C. and less than 550° C. and a mass flow rate such that the ratio of the mass flow rates of the heat transfer fluid relative to the feedstock is greater than or equal to 10;
d) separation into an effluent comprising ethylene and an aqueous effluent;
e) purification of the aqueous effluent and separation of a stream of purified water and a stream of unconverted ethanol.

公开(公告)号：US11731918B2

公开(公告)日：2023-08-22

申请号：US17415811

申请日：2019-12-13

Applicant: IFP Energies nouvelles ,  COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN

Inventor： Kirill Drobyshev ,  Rejane Dastillung ,  Jean-Christophe Gabelle ,  Matthieu Rolland

IPC: C07C1/207 ,  B01J8/04 ,  B01J19/24 ,  B01J19/14 ,  B01J21/08 ,  B01J23/20 ,  B01J23/72 ,  B01J38/04 ,  C07C45/00

CPC classification number: C07C1/2072 ,  B01J8/04 ,  B01J19/14 ,  B01J19/2445 ,  B01J21/08 ,  B01J23/20 ,  B01J23/72 ,  B01J38/04 ,  C07C45/002 ,  B01J2219/00164 ,  C07C2521/08 ,  C07C2523/72

Abstract: The present invention relates to a process for producing butadiene from ethanol, in two reaction steps, comprising a step a) of converting ethanol into acetaldehyde and a step b) of conversion into butadiene, said step b) simultaneously implementing a reaction step and a regeneration step in (n+n/2) fixed-bed reactors, n being equal to 4 or a multiple thereof, comprising a catalyst, said regeneration step comprising four successive regeneration phases, said step b) also implementing three regeneration loops.

公开(公告)号：US11453853B2

公开(公告)日：2022-09-27

申请号：US17280257

申请日：2019-09-26

Applicant: IFP Energies Nouvelles

Inventor： Helena Gonzalez Penas ,  Marcel Ropars ,  Eszter Toth ,  Belinda Perez Bibbins ,  Nicolas Lopes Ferreira ,  Vincent Coupard ,  Angelique Bisson ,  Jean-Christophe Gabelle

IPC: B08B3/08 ,  C12M1/00 ,  B08B7/02 ,  B08B7/04

Abstract: The present invention relates to a process for cleaning a solid support of a fermentation reactor for the production of alcohols by fermentation using a sugary fluid, the solid support comprising a polyurethane foam inoculated with a biomass produced by a solvent-producing strain belonging to the genus Clostridium, the process comprising placing the solid support in contact with a fluid originating from the fermentation must enriched in alcohol and/or acetone and/or an aqueous solution at basic pH.