Raw material fluid treatment plant and raw material fluid treatment method

Patent metadata

Field	Value
Publication number	US-12497919-B2
Application number	US-202418440466-A
Country	US
Kind code	B2
Filing date	Feb 13, 2024
Priority date	Mar 15, 2019
Publication date	Dec 16, 2025
Grant date	Dec 16, 2025

Abstract

A raw material fluid treatment plant is provided with a raw material reaction apparatus for reacting a raw material fluid to form a reaction gas. The raw material reaction apparatus includes preheaters and a reactor. The preheaters are heat exchangers that perform heat exchange between a second heat transfer medium and the raw material fluid to heat the raw material fluid. The reactor is a heat exchanger that performs heat exchange between a first heat transfer medium differing from the second heat transfer medium and the raw material fluid having been heated by the preheaters to heat and react the raw material fluid.

First claim

The invention claimed is:

1 . A raw material fluid treatment plant comprising:
a raw material reaction apparatus that is configured to generate a reaction gas by reacting a raw material fluid, wherein the raw material reaction apparatus includes
a preheater that is configured to preheat the raw material fluid,
a reactor that is configured to generate the reaction gas by reacting the raw material fluid,
a first heat transfer medium line through which a first heat transfer medium is configured to flow,
a second heat transfer medium line through which a second heat transfer medium is configured to flow, and
an exhaust gas generation equipment that is configured to generate an exhaust gas, and
an exhaust heat utilization equipment,
the reactor is a heat exchanger that is configured to react the raw material fluid by exchanging heat between the raw material fluid and the first heat transfer medium, the preheater is a heat exchanger that is configured to heat the raw material fluid by exchanging heat between the raw material fluid and the second heat transfer medium, and is configured to supply the raw material fluid preheated by the preheater to the reactor, the exhaust heat utilization equipment has
a gas frame through which the exhaust gas is configured to flow,
a first heat transfer medium heater provided inside the gas frame, and being configured to heat the first heat transfer medium by exchanging heat between the first heat transfer medium and the exhaust gas, and
a second heat transfer medium heater disposed on a downstream side of a flow of the exhaust gas from the first heat transfer medium heater inside the gas frame, and being configured to heat the second heat transfer medium by exchanging heat between the second heat transfer medium and the exhaust gas,
the first heat transfer medium line is connected to the reactor such that the first heat transfer medium line is configured to guide the first heat transfer medium heated by the first heat transfer medium heater to the reactor, and the second heat transfer medium line is connected to the preheater such that the second heat transfer medium line is configured to guide the second heat transfer medium heated by the second heat transfer medium heater to the preheater.

2 . The raw material fluid treatment plant according to claim 1 ,
wherein a product of constant pressure specific heat and a flow rate of the first heat transfer medium flowing in the first heat transfer medium line is larger than a product of constant pressure specific heat and a flow rate of the second heat transfer medium flowing in the second heat transfer medium line.

3 . The raw material fluid treatment plant according to claim 1 ,
wherein the first heat transfer medium line is configured to guide the first heat transfer medium heated by the first heat transfer medium heater to the reactor, and the preheater is disposed on a downstream side of a flow of the exhaust gas from the first heat transfer medium heater inside the gas frame, and is a heat exchanger configured to heat the raw material fluid by exchanging heat between the raw material fluid and the exhaust gas serving as the second heat transfer medium, and the second heat transfer medium line is configured to include a portion of the gas frame.

4 . The raw material fluid treatment plant according to claim 1 ,
wherein the reactor has a pre-reactor that is configured to generate the reaction gas by reacting the raw material fluid, and a post-reactor that is configured to react the raw material fluid contained in a gas from the pre-reactor, wherein the pre-reactor is configured to exchange heat between a first low-temperature heat transfer medium which is a type of the first heat transfer medium and the raw material fluid, the post-reactor is configured to exchange heat between a first high-temperature heat transfer medium which is a type of the first heat transfer medium and the gas from the pre-reactor, the first heat transfer medium line has a first low-temperature heat transfer medium line through which the first low-temperature heat transfer medium is configured to flow and a first high-temperature heat transfer medium line through which the first high-temperature heat transfer medium is configured to flow, the first low-temperature heat transfer medium line is connected to the pre-reactor, and is configured to guide the first low-temperature heat transfer medium to the pre-reactor, and the first high-temperature heat transfer medium line is connected to the post-reactor, and is configured to guide the first high-temperature heat transfer medium to the post-reactor.

5 . The raw material fluid treatment plant according to claim 4 ,
wherein a product of constant pressure specific heat and a flow rate of the first low-temperature heat transfer medium flowing in the first low-temperature heat transfer medium line is larger than a product of constant pressure specific heat and a flow rate of the first high-temperature heat transfer medium flowing in the first high-temperature heat transfer medium line.

6 . The raw material fluid treatment plant according to claim 4 ,
wherein the raw material reaction apparatus includes a first high-temperature heat transfer medium recover line configured to recover the first high-temperature heat transfer medium after heat exchanging in the post-reactor, wherein the first high-temperature heat transfer medium recover line is connected in the middle of the first low-temperature heat transfer medium line, and is configured to send the first high-temperature heat transfer medium recovered to the first low-temperature heat transfer medium line.

7 . The raw material fluid treatment plant according to claim 4 , wherein:
the first heat transfer medium heater has a first low-temperature heat transfer medium heater that is configured to heat a first low-temperature heat transfer medium by exchanging heat between the first low-temperature heat transfer medium which is a type of the first heat transfer medium and the exhaust gas, and a first high-temperature heat transfer medium heater that is configured to heat the first high-temperature heat transfer medium by exchanging heat between a first high-temperature heat transfer medium which is a type of the first heat transfer medium and the exhaust gas, the first high-temperature heat transfer medium heater is disposed on an upstream side of a flow of the exhaust gas from the first low-temperature heat transfer medium heater inside the gas frame, the first heat transfer medium line has a first low-temperature heat transfer medium line through which the first low-temperature heat transfer medium is configured to flow and a first high-temperature heat transfer medium line through which the first high-temperature heat transfer medium is configured to flow, the first low-temperature heat transfer medium line is connected to the first low-temperature heat transfer medium heater, and is configured to guide the first low-temperature heat transfer medium heated by the exhaust gas to the pre-reactor, and the first high-temperature heat transfer medium line is connected to the first high-temperature heat transfer medium heater, and is configured to guide the first high-temperature heat transfer medium heated by the exhaust gas to the post-reactor.

Assignees

• Mitsubishi Heavy Ind Ltd

Inventors

• Uechi Hideyuki
• Araki Hidefumi
• Tanimura Satoshi
• Nose Masakazu
• Sasahara Jun
• Tanaka Yukio
• Yuasa Atsushi

Classifications

• F01K25/103 Primary

  Carbon dioxide (F01K25/065 takes precedence) · CPC title

• B01J19/0053

  Details of the reactor · CPC title

• B01J19/0013 Primary

  Controlling the temperature of the process · CPC title

• Y02E60/36

  Hydrogen production from non-carbon containing sources, e.g. by water electrolysis · CPC title

• Y02E20/16

  Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT] · CPC title