Chemical synthesis and synthesis reactors

Patent metadata

Field	Value
Publication number	US-10562003-B2
Application number	US-201615550114-A
Country	US
Kind code	B2
Filing date	Jan 20, 2016
Priority date	Feb 13, 2015
Publication date	Feb 18, 2020
Grant date	Feb 18, 2020

Abstract

The present disclosure relates to chemical synthesis. The teachings thereof may be embodied in methods for chemical synthesis and/or reactors for synthesis. The teaching may increase the conversion of equilibrium-limited reactions in a single pass through a synthesis reactor. For example, a method may include: introducing a synthesis reactant into a reaction chamber with a prevailing pressure p1; forming a synthesis product; discharging the product and any unreacted reactant; separating the product from the unreacted reactant; and introducing the unreacted reactant into a second reaction chamber with a prevailing pressure p2 lower than the pressure p1.

First claim

What is claimed is:

1. A method of conducting a chemical synthesis, the method comprising:
introducing a fluid synthesis reactant into a carrier liquid present in a reaction chamber with a prevailing chamber pressure pl;
forming a synthesis product in the reaction chamber consuming at least part of the synthesis reactant;
drawing the synthesis product and any unreacted synthesis reactant as vapors from the reaction chamber;
separating the synthesis product from the unreacted synthesis reactant; and
introducing the unreacted synthesis reactant into a second reaction chamber with a prevailing chamber pressure p 2 lower than the pressure p 1 .

2. The method as claimed in claim 1 , wherein the first and second reaction chambers are connected by a heat pipe; and
a heat of reaction resulting from formation of the synthesis product is exchanged between the reaction chambers.

3. The method as claimed in claim 1 , wherein the heat pipe passes out of at least one of the first or second reaction chambers, and heat energy is removed therefrom.

4. The method as claimed in claim 1 , wherein the synthesis reactant is converted at least in part to the synthesis product within the carrier liquid.

5. The method as claimed in claim 1 , further comprising supplying a particulate catalyst to the carrier liquid.

6. The method as claimed in claim 1 , wherein the carrier liquid comprises an oil.

7. The method as claimed in claim 1 , wherein the first and second reaction chambers comprise fixed bed reactors with a catalyst; and
reaction of synthesis reactant to the synthesis product takes place in the gas phase.

8. The method as claimed in claim 1 , wherein the first and second reaction chambers comprise fluidized bed reactors with a catalyst;
a gas stream flowing in from the bottom fluidizes a bed comprising catalyst material; and
reaction of synthesis reactant to the synthesis product takes place in the gas phase.

Assignees

• Siemens Ag

Inventors

• Albert Jakob
• Baldauf Manfred
• Reichert Jenny
• Tremel Alexander
• Wasserscheid Peter

Classifications

• B01J2208/00176

  outside the reactor · CPC title

• B01J12/007

  in the presence of catalytically active bodies, e.g. porous plates · CPC title

• B01J8/0496

  Heating or cooling the reactor · CPC title

• B01J8/26

  with two or more fluidised beds, e.g. reactor and regeneration installations · CPC title

• B01J2208/00132

  Tubes · CPC title