Ozone generation method and ozone generation device

Patent metadata

Field	Value
Publication number	US-2022194792-A1
Application number	US-202017604247-A
Country	US
Kind code	A1
Filing date	Apr 15, 2020
Priority date	Apr 16, 2019
Publication date	Jun 23, 2022
Grant date	—

Abstract

An ozone generation method comprising:
Supplying a crude feed gas comprising oxygen and methane Performing a catalytic oxidation of methane from the crude feed gas to obtain a treated feed gas Generating ozone from the treated feed gas.

First claim

1 . An ozone generation method comprising:
Supplying a crude feed gas comprising oxygen and methane Performing a catalytic oxidation of methane from the crude feed gas to obtain a treated feed gas Generating ozone from the treated feed gas.

2 . The ozone generation method according to claim 1 , comprising the additional step of heating the crude feed gas to a temperature of at least 150° C. and at most 700° C. before and/or during performing the catalytic oxidation of methane from the crude feed gas to obtain a treated feed gas.

3 . The ozone generation method according to claim 2 , further comprising the additional steps of:
Recovering at least a part of the heat from the treated feed gas Heating the crude feed gas with the recovered heat before and/or during the heating of the crude feed gas to a temperature of at least 150° C. and at most 700° C.

4 . The ozone generation method according to claim 1 , wherein the catalytic oxidation is performed with a catalyst chosen among palladium, platinum and platinum-palladium.

5 . The ozone generation method according to claim 1 , comprising the additional step of drying the treated feed gas to remove at least some water before generating ozone from the treated feed gas.

6 . The ozone generation method according to claim 1 , comprising the additional step of cooling the treated feed gas before generating ozone from the treated feed gas.

7 . The ozone generation method according to claim 1 , comprising the additional step of cooling the ozone generator with a cooling liquid.

8 . The ozone generation method according to claim 6 , wherein the step of cooling the treated feed gas is performed with at least part of the cooling liquid outputted from the ozone generator.

9 . An ozone generation device, comprising:
A supply of a crude feed gas comprising oxygen and methane A catalytic unit adapted to perform a catalytic oxidation of methane from the crude feed gas to obtain a treated feed gas An ozone generator adapted to be fed by the treated feed gas.

10 . The ozone generation device according to claim 9 , further comprising a heating unit adapted to heat the crude feed gas and/or the catalytic unit to at least 150° C. and at most 700° C.

11 . The ozone generation device according to claim 10 , further comprising a heat exchanger adapted to recover at least part of the heat from the treated feed gas and to heat the crude feed gas and/or the catalytic unit with the recovered heat.

12 . The ozone generation device according to claim 9 , further comprising a drying unit adapted to remove at least some water from the treated feed gas.

13 . The ozone generation device according to claim 9 , further comprising a cooling unit adapted to cool the treated feed gas.

14 . The ozone generation device according to claim 9 , wherein the ozone generator is adapted to be cooled by a cooling liquid.

15 . The ozone generation device according to claim 9 , further comprising circulation means adapted to circulate toward the cooling unit at least part of the cooling liquid outputted from the ozone generator.

16 . The ozone generation device according to claim 9 , wherein the catalytic unit comprises a catalyst chosen among platinum-palladium and platinum-palladium.

Assignees

• Suez Groupe

Inventors

• Seyrling Sieghard
• Ramoino Luca
• Reisch Eugen

Classifications

• B01J23/70

  of the iron group metals or copper · CPC title

• B01J23/005

  Spinels · CPC title

• B01J21/04

  Alumina · CPC title

• C01B13/11 Primary

  by electric discharge · CPC title

• B01J21/08

  Silica · CPC title