Carbon compound manufacturing system and method of controlling carbon compound manufacturing system

Patent metadata

Field	Value
Publication number	US-12296311-B2
Application number	US-202318323829-A
Country	US
Kind code	B2
Filing date	May 25, 2023
Priority date	Mar 18, 2021
Publication date	May 13, 2025
Grant date	May 13, 2025

Abstract

A carbon compound manufacturing system includes: a recovery unit; a conversion unit; a synthesis unit; a first flow path to supply the supply gas to the recovery unit; a second flow path connecting the recovery and the conversion units; a third flow path connecting the conversion and the synthesis units; at least one of first to third detectors to respectively measure a flow rate of the supply gas flowing through the first flow path to generate a first data signal, a flow rate of the carbon dioxide flowing through the second flow path to generate a second data signal, and a value of voltage or current to the conversion unit to generate a third data signal; and an integration controller to collate at least one data of the first to third data signals with a corresponding plan data to generate at least one of first to third control signals.

First claim

What is claimed is:

1. A method of controlling a carbon compound manufacturing system,
the system comprising:
a recovery unit configured to separate carbon dioxide from a supply gas containing the carbon dioxide;
a conversion unit configured to convert the carbon dioxide supplied from the recovery unit into an intermediate compound;
a synthesis unit configured to synthesize a carbon compound using the intermediate compound supplied from the conversion unit;
an emission unit configured to discharge the supply gas;
a first flow path for supplying the supply gas to the recovery unit, the first flow path connecting the recovery unit and the emission unit;
a second flow path connecting the recovery unit and the conversion unit;
a third flow path connecting the conversion unit and the synthesis unit;
a first detector configured to measure a flow rate of the supply gas flowing from the emission unit to the recovery unit through the first flow path to generate a first data signal;
a second detector configured to measure a flow rate of the carbon dioxide flowing through the second flow path to generate a second data signal;
a third detector configured to measure a value of voltage or current supplied to the conversion unit to generate a third data signal; and
an integration controller,

the method comprising:
generating the first to third data signals and transmitting the first to third data signals to the integration controller; and
collating measured data in the first to third data signals with a plan data corresponding to the measured data by the integration controller to generate a first control signal for adjusting an operation condition of the recovery unit, a second control signal for adjusting an operation condition of the conversion unit, and a third control signal for adjusting an operation condition of the synthesis unit by calculation processing when a value of the measured data is outside a request criteria range of a value of the plan data.

2. The method according to claim 1 , wherein:
the system further comprises at least one raw material supply unit selected from the group consisting of a first raw material supply unit configured to supply to the conversion unit a first raw material for converting the carbon dioxide into the intermediate compound, and a second raw material supply unit configured to supply to the second flow path a second raw material for synthesizing the carbon compound; and
the integration controller generates the first control signal, the second control signal, the third control signal, a fourth control signal for adjusting an operation condition of the first raw material supply unit, and a fifth control signal for adjusting an operation condition of the second raw material supply unit, according to a collation result.

3. The method according to claim 2 , wherein
when the value of the measured data in the third data signal is larger than the request criteria range of the value of the plan data,
the operation condition of the recovery unit is adjusted to increase an amount of carbon dioxide to be recovered by the recovery unit according to the first control signal,
the operation condition of the conversion unit is adjusted to increase a conversion amount of carbon dioxide to be converted by the conversion unit according to the second control signal, and
the operation condition of the second raw material supply unit is adjusted to decrease a flow rate of the second raw material to be supplied to the second flow path according to the fifth control signal.

4. The method according to claim 2 , wherein
when the value of the measured data in the third data signal is smaller than the request criteria range of the value of the plan data,
the operation condition of the recovery unit is adjusted to decrease an amount of carbon dioxide to be recovered by the recovery unit according to the first control signal,
the operation condition of the conversion unit is adjusted to decrease a conversion amount of carbon dioxide to be converted by the conversion unit according to the second control signal, and
the operation condition of the second raw material supply unit is adjusted to increase a flow rate of the second raw material to be supplied to the second flow path according to the fifth control signal.

5. The method according to claim 2 , wherein
when the value of the measured data in the first data signal is larger than the request criteria range of the value of the plan data,
the operation condition of the recovery unit is adjusted to increase an amount of carbon dioxide to be recovered by the recovery unit according to the first control signal,
the operation condition of the conversion unit is adjusted to increase a value of volume or current to be supplied to the conversion unit according to the second control signal, and
the operation condition of the second raw material supply unit is adjusted to decrease a flow rate of the second raw material to be supplied to the second flow path according to the fifth control signal.

6. The method according to claim 2 , wherein
when the value of the measured data in the first data signal is smaller than the request criteria range of the value of the plan data,
the operation condition of the recovery unit is adjusted to decrease an amount of carbon dioxide to be recovered by the recovery unit according to the first control signal,
the operation condition of the conversion unit is adjusted to decrease a value of voltage and current to be supplied to the conversion unit according to the second control signal, and
the operation condition of the second raw material supply unit is adjusted to increase a flow rate of the second raw material to be supplied to the second flow path according to the fifth control signal.

7. The method according to claim 2 , wherein
when the value of the measured data in the first data signal is larger than the request criteria range of the value of the plan data,
the operation condition of the recovery unit is adjusted to increase an amount of carbon dioxide to be recovered by the recovery unit according to the first control signal,
the operation condition of the conversion unit is adjusted to increase a value of volume or current to be supplied to the conversion unit according to the second control signal,
the operation condition of the second raw material supply unit is adjusted to increase a flow rate of the second raw material to be supplied to the second flow path according to the fifth control signal, and
the operation condition of the synthesis unit is adjusted to increase a reaction temperature when synthesizing the carbon compound according to the third control signal.

8. The method according to claim 2 , wherein
when the value of the measured data in the first data signal is smaller than the request criteria range of the value of the plan data,
the operation condition of the recovery unit is adjusted to decrease an amount of carbon dioxide to be recovered by the recovery unit according to the first control signal,
the operation condition of the conversion unit is adjusted to decrease a value of voltage and current to be supplied to the conversion unit according to the second control signal,
the operation condition of the second raw material supply unit is adjusted to increase a flow rate of the second raw material to be supplied to the second flow path according to the fifth control signal, and
the operation condition of the synthesis unit is adjusted to decrease a reaction temperature when synthesizing the carbon compound according to the third control signal.

Assignees

• Toshiba Kk
• Toshiba Energy Systems & Solutions Corp

Inventors

• Mizuguchi Koji
• Mikoshiba Satoshi
• Kitagawa Ryota
• Muramatsu Takehiko

Classifications

• B01J8/082

  Controlling processes · CPC title

• C07C1/12

  from carbon dioxide with hydrogen · CPC title

• B01J2219/00182

  controlling the level of reactants in the reactor vessel · CPC title

• B01J2219/00164

  controlling the flow · CPC title

• B01D2256/22

  Carbon dioxide · CPC title