Reaction system

Patent metadata

Field	Value
Publication number	US-2024325966-A1
Application number	US-202418738206-A
Country	US
Kind code	A1
Filing date	Jun 10, 2024
Priority date	Apr 8, 2022
Publication date	Oct 3, 2024
Grant date	—

Abstract

A reaction system includes a carbon dioxide collection unit that collects carbon dioxide by an absorption process or an adsorption process, a reaction unit that generates hydrocarbons from a raw material containing hydrogen and carbon dioxide, and a distillation unit that distills hydrocarbons, wherein hydrocarbons are distilled in the distillation unit by reaction heat generated by generating hydrocarbons in the reaction unit, and carbon dioxide absorbed or adsorbed in the carbon dioxide collection unit is separated by a low-temperature heat medium that has a temperature lower than a high-temperature heat medium being a heat medium introduced to the distillation unit, as a result of consuming part of the reaction heat in the distillation unit.

First claim

What is claimed is:

1 . A reaction system, comprising:
a carbon dioxide collection unit configured to collect carbon dioxide by an absorption process or an adsorption process; a reaction unit configured to generate hydrocarbons from a raw material containing hydrogen and carbon dioxide; and a distillation unit configured to distill hydrocarbons, wherein hydrocarbons are distilled in the distillation unit by reaction heat generated by generating hydrocarbons in the reaction unit, and carbon dioxide absorbed or adsorbed in the carbon dioxide collection unit is separated by a low-temperature heat medium that has a temperature lower than a high-temperature heat medium being a heat medium introduced to the distillation unit, as a result of consuming part of the reaction heat in the distillation unit.

2 . The reaction system according to claim 1 , wherein
the distillation unit distills hydrocarbons being generated in the reaction unit.

3 . The reaction system according to claim 1 , wherein
carbon dioxide contained in the raw material includes carbon dioxide being collected in the carbon dioxide collection unit.

4 . The reaction system according to claim 1 , wherein
the carbon dioxide collection unit includes:
an absorption unit configured to absorb carbon dioxide into an absorption solution; and
a separation unit configured to separate, from the absorption solution, carbon dioxide being absorbed into the absorption solution, and
the separation unit separates carbon dioxide by the low-temperature heat medium.

5 . The reaction system according to claim 1 , wherein
the reaction unit includes a fixed bed reactor.

6 . The reaction system according to claim 1 , wherein
the distillation unit includes at least one of an atmospheric distillation unit and a vacuum distillation unit, and distills hydrocarbons by the reaction heat, the hydrocarbons being introduced to at least one of the atmospheric distillation unit and the vacuum distillation unit.

Assignees

• Ihi Corp

Inventors

• Nariai Kentaro
• Tsujikawa Jun
• INABA Kousuke

Classifications

• B01D53/04

  with stationary adsorbents {(B01D53/025 takes precedence)} · CPC title

• B01D53/1475 Primary

  Removing carbon dioxide · CPC title

• B01D2257/504

  Carbon dioxide · CPC title

• B01D2256/24

  Hydrocarbons · CPC title

• C07C1/22

  by reduction · CPC title