Evaporative gas generating device, method for producing evaporative gas, hydrogen bromide production device, and method for producing hydrogen bromide

Patent metadata

Field	Value
Publication number	US-9835325-B2
Application number	US-201314390657-A
Country	US
Kind code	B2
Filing date	Mar 27, 2013
Priority date	Apr 26, 2012
Publication date	Dec 5, 2017
Grant date	Dec 5, 2017

Abstract

An evaporative gas generating device and a method for producing evaporative gas. A hydrogen bromide production device and a method for producing hydrogen bromide are also disclosed. The hydrogen bromide production device is provided with an evaporative gas generating device ( 1 ) that generates bromine gas, and a reactor ( 3 ) that reacts the bromine gas with hydrogen gas to form hydrogen bromide. The evaporative gas generating device ( 1 ) is provided with a container ( 10 ) that accommodates liquid bromine (B), and heating jackets ( 35, 36 ) that supply heat to a wall surface of the container ( 10 ), and heat and evaporate the liquid bromine (B) within a liquid accommodating part ( 15 ) of the container ( 10 ) to raise the temperature of the bromine gas within the evaporative gas accommodating part ( 16 ).

First claim

The invention claimed is:

1. An evaporative gas generating device comprising:
a container provided with a liquid accommodating part that accommodates a liquid, and an evaporative gas accommodating part that is continuously provided above the liquid accommodating part and introduces evaporative gas formed by the liquid within the liquid accommodating part being evaporated; and
a heating unit that heats both the liquid accommodating part and the evaporative gas accommodating part to evaporate the liquid within the liquid accommodating part and raises the temperature of the evaporative gas within the evaporative gas accommodating part,
wherein the container has a double structure including two bottomed tubular members, a lower part of a space formed between the inside bottomed tubular member and the outside bottomed tubular member forms the liquid accommodating part, and the upper part of the space forms the evaporative gas accommodating part.

2. The evaporative gas generating device according to claim 1 ,
wherein the heating unit is disposed on at least one of the inside of the inside bottomed tubular member or the outside of the outside bottomed tubular member.

3. The evaporative gas generating device according to claim 1 ,
wherein the heating unit is a heating jacket through which a heat medium circulates.

4. The evaporative gas generating device according to claim 3 ,
wherein the heating jacket has a supply port for the heat medium at an upper end and has a discharge port for the heat medium at a lower end.

5. The evaporative gas generating device according to claim 3 ,
wherein the heat medium is steam.

6. The evaporative gas generating device according to claim 5 , further comprising:
a drainage part that discharges the water formed by liquefaction of the steam from the heating jacket.

7. The evaporative gas generating device according to claim 1 , further comprising:
a liquid introduction part that introduces the liquid into the liquid accommodating part;
a discharge part that discharges the evaporative gas formed by the liquid being evaporated from the evaporative gas accommodating part;
a liquid level detecting unit that detects the height of a liquid level of the liquid within the container; and
a liquid level control unit that controls the liquid introduction part on the basis of a detection result of the liquid level detecting unit to adjust the amount of introduction of the liquid into the liquid accommodating part so that the height of the liquid level falls within a certain range.

8. The evaporative gas generating device according to claim 1 ,
wherein the liquid is bromine.

9. A hydrogen bromide production device, comprising:
the evaporative gas generating device according to claim 8 ;
a hydrogen gas supply unit that supplies hydrogen gas; and
a reactor that reacts bromine gas supplied from the evaporative gas generating device with hydrogen gas supplied from the hydrogen gas supply unit to form hydrogen bromide.

10. A method for producing evaporative gas using the evaporative gas generating device according to claim 1 , comprising:
an evaporation step of heating a liquid accommodated in a liquid accommodating part to evaporate the liquid to generate evaporative gas while controlling the height of a liquid level of the liquid within a certain range; and
an evaporative gas heating step of introducing and heating the evaporative gas into the evaporative gas accommodating part provided continuously from the liquid accommodating part.

11. The method for producing evaporative gas according to claim 10 ,
wherein the liquid is bromine.

12. A method for producing hydrogen bromide using the evaporative gas generating device according to claim 1 , comprising:
an evaporation step of heating liquid bromine accommodated in a liquid accommodating part to evaporate liquid bromine to generate bromine gas while controlling the height of a liquid level of the liquid bromine within a certain range;
an evaporative gas heating step of introducing and heating the bromine gas into the evaporative gas accommodating part provided continuously from the liquid accommodating part; and
a reaction step of reacting the bromine gas heated in the evaporative gas heating step with hydrogen gas to form hydrogen bromide.

Assignees

• Showa Denko Kk

Inventors

• Saito Hirohide
• Wada Masaru

Classifications

• Y02E60/321

  Cross-Sectional Technologies · mapped topic

• B01J12/00

  Chemical processes in general for reacting gaseous media with gaseous media; Apparatus specially adapted therefor (B01J3/08, B01J8/00, B01J19/08 take precedence) · CPC title

• B01J10/00

  Chemical processes in general for reacting liquid with gaseous media other than in the presence of solid particles, or apparatus specially adapted therefor (B01J19/08 takes precedence; separation, e.g. distillation, also combined with chemical reactions B01D, {e.g. B01D3/009}) · CPC title

• F22B1/08 Primary

  the heat carrier being steam · CPC title

• C01B7/093 Primary

  Hydrogen bromide · CPC title