# US 10,441,931 B2 · Reactor and method for equilibrium-limited reactions

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- Number: US 10,441,931 B2
- Document ID: US10441931B2
- Status: Granted
- Kind: B2
- Application number: 16/307,932
- Filed: 2017-06-09
- Published: 2019-07-18
- Granted: 2019-10-15
- Earliest claimed: 2016-06-09
- Assignees: Siemens Aktiengesellschaft
- Applicants: Siemens Aktiengesellschaft
- Inventors: Jakob Albert; Manfred Baldauf; Katharina Meltzer; Jenny Reichert; Alexander Tremel; Peter Wasserscheid
- Web page: https://patentgrep.com/patent/US10441931B2

## CPC

- B01J 8/0257: {in a cylindrical annular shaped bed}
- B01J 8/0278: {Feeding reactive fluids (for solid material B01J8/0015)}
- B01J 8/10: moved by stirrers or by rotary drums or rotary receptacles {or endless belts}
- B01J 8/222: {in the presence of a rotating device only}
- B01J 2208/00814: the particulate material being provides in prefilled containers
- B01J 2208/00876: outside the bed, e.g. rotary mixer
- B01J 2208/00884: Means for supporting the bed of particles, e.g. grids, bars, perforated plates
- B01J 2208/00938: Flow distribution elements
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS

## Abstract

Various embodiments include a reactor for implementation of equilibrium-limited reactions comprising: a reaction space; a reactant feed; an outlet for reaction products; a device for accommodating catalyst material; and a stirrer device comprising: a hollow shaft with a gas inlet opening at one end of the hollow shaft; a first stirrer paddle with gas exit orifices mounted on the hollow shaft; and a second stirrer paddle mounted on the hollow shaft proximate the device for accommodating the catalyst material.

## Claims

### Claim 1

A reactor for implementation of equilibrium-limited reactions, the reactor comprising:
a reaction space;
a reactant feed;
an outlet for reaction products;
a device for accommodating catalyst material; and
a stirrer device comprising:
a hollow shaft with a gas inlet opening at one end of the hollow shaft;
a first stirrer paddle with gas exit orifices mounted on the hollow shaft; and
a second stirrer paddle mounted on the hollow shaft proximate the device for accommodating the catalyst material.

### Claim 2 (depends on 1)

The reactor as claimed in claim 1, further comprising:
a liquid phase zone in a lower region of the reaction space; and
a gas phase zone above the liquid phase zone;
wherein the first stirrer paddle is disposed in the liquid phase zone and the second stirrer paddle is disposed in the gas phase zone.

### Claim 3 (depends on 2)

The reactor as claimed in claim 2, further comprising a liquid sorbent disposed in the liquid phase zone.

### Claim 4 (depends on 1)

The reactor as claimed in claim 1, wherein the second stirrer paddle comprises a radially conveying stirrer.

### Claim 5 (depends on 1)

The reactor as claimed in claim 1, wherein the first stirrer paddle extends radially with respect to the hollow shaft between 20% and 30% of a diameter of the reactor space.

### Claim 6 (depends on 1)

The reactor as claimed in claim 1, wherein an effective velocity of the first stirrer paddle is between 5 m/s and 15 m/s.

### Claim 7

A method of implementing equilibrium-limited reactions, the method comprising:
introducing a catalyst material into a reactor;
introducing reactants into the reactor;
stirring the reactants with a stirrer comprising a hollow shaft;
reacting the reactants resulting in a product; and
transporting a gas mixture from an upper region of the reactor through the hollow shaft into a lower region of the reactor;
wherein the stirrer sucks in the gas mixture and discharges the gas mixture from gas exit orifices in a first stirrer paddle mounted on the hollow shaft into the catalyst mixture; and
a second stirrer paddle mounted on the hollow shaft disperses the gas mixture throughout the catalyst material.

### Claim 8 (depends on 7)

The method as claimed in claim 7, further comprising supplying a liquid sorbent to the reactor;
wherein the liquid sorbent accumulates in a liquid phase zone in the lower region; and
discharging the gas mixture into the liquid phase zone with the first stirrer paddle.

### Claim 9 (depends on 8)

The method as claimed in claim 8, further comprising distributing the gas mixture in a radial direction with the second stirrer paddle in a gas phase zone above the liquid phase zone.