US 2003/0147791 A1 · Multi-stage loop reactor

Abstract

A multi-stage loop reactor, employed in various gas-liquid or gas-liquid-solid chemical reaction systems, which comprises a reactor body, draft tube(s) inside the reactor body, and a gas distributor at the bottom of draft tube. The draft tube can include one or more sections. The multi-stage loop reactor of the present invention has a higher mass transfer rate because the different phases are well mixed throughout the reactor, and the gas bubbles are distributed evenly everywhere. The reactor of this invention can be extensively applied in various gas-liquid or gas-liquid-solid reaction processes including the oxidization process, hydrogenation process, hydrocracking process, coal liquification process, fermentation process, hydrocarbon processing process, and biological treatment of waste water, etc.

Claims9

Dependent claims

A multi-stage loop reactor, comprising:

a reactor body;
at least one draft tube;
and
a gas distributor,
in which the draft tubes are located inside the reactor body, and the gas distributor is fixed at the bottom of the draft tube.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application

10/323,494Filed 18 Dec 2002

Priority

CN 02 2 02768.81 Feb 2002

Published

7 Aug 2003

Term ends

Not estimatedThe source records don’t support an estimate.

Classification5 codes

B01J 8/226
The particles being subject to a circulatory movement: internally, i.e. the particles rotate within the vessel
B01F 23/232311
Being at least partially immersed in the liquid, e.g. in a closed circuit: the conduits being vertical draft pipes with a lower intake end and an…
B01F 33/4051
In receptacles having guiding conduits therein, e.g. for feeding the gas to the bottom of the receptacle: with vertical conduits through which the…
B01J
Chemical or physical processes

Multi-stage loop reactor

Life of this patent

Multi-stage loop reactor

Life of this patent

Abstract

Claims9