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

Patent metadata

Field	Value
Publication number	US-11701631-B2
Application number	US-202117446502-A
Country	US
Kind code	B2
Filing date	Aug 31, 2021
Priority date	Mar 18, 2021
Publication date	Jul 18, 2023
Grant date	Jul 18, 2023

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 carbon compound manufacturing 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 connecting the recovery unit and the emission unit and configured to supply the supply gas from the emission unit to the recovery 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 configured to collate measured data in the first to third data signals with a plan data corresponding to the measured data, and generate, according to a collation result, 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.

2. The system according to claim 1 , further comprising
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.

3. The system according to claim 2 , wherein
the second raw material contains at least one selected from the group consisting of carbon monoxide and hydrogen.

4. The system according to claim 1 , wherein
the intermediate compound is produced by an electrolytic reaction of the carbon dioxide or a reverse shift reaction of the carbon dioxide.

5. The system according to claim 1 , wherein
the conversion unit discharges a first discharged gas containing carbon dioxide, and supplies the first discharged gas to at least one unit selected from the group consisting of the recovery unit, the conversion unit, and the synthesis unit.

6. The system according to claim 1 , wherein
the synthesis unit is configured to discharge a second discharged gas containing carbon monoxide or carbon dioxide, and supply the second discharged gas to at least one unit selected from the group consisting of the recovery unit, the conversion unit, and the synthesis unit.

7. The system according to claim 1 , wherein:
the recovery unit has a first controller configured to adjust an operation condition of the recovery unit in accordance with the first control signal;
the conversion unit has a second controller configured to adjust an operation condition of the conversion unit in accordance with the second control signal; and
the synthesis unit has a third controller configured to adjust an operation condition of the synthesis unit in accordance with the third control signal.

8. The system according to claim 1 , wherein
the integration controller includes:
a reception part configured to receive the first-third data signals;
a calculation part configured to collate the measured data in the first-third data signals with the plan data corresponding to the measured data, and generate the first-third control signals by executing calculation processing when a value of the measured data is outside a request criteria range of a value of the plan data; and
a transmission part configured to transmit the first-third control signals.

9. The system according to claim 1 , wherein
at least one flow path selected from the group consisting of the first to third flow paths is not connected to any buffer tanks.

10. The system according to claim 1 , wherein
the supply gas includes an effluent gas from a biomass power station or carbon dioxide in air.

11. The system according to claim 1 , wherein
the first detector is configured to measure a flow rate per unit time of the supply gas flowing from the emission unit to the recovery unit through the first flow path to generate the first data signal.

12. The system according to claim 1 , wherein
the integration controller is configured to the collate measured data in the first to third data signals with the plan data corresponding to the measured data and generate, according to a collation result, the first to third control signals and a fourth control signal for adjusting an operation condition of the emission unit, and
an operation condition of the emission unit is controlled by the fourth control signal so that the emission unit increases the flow rate of the supply gas in response to the third data signal indicating an increase of the value of the voltage or current supplied to the conversion unit.

13. The system according to claim 1 , further comprising:
a second raw material supply unit configured to supply to the second flow path a second raw material for synthesizing the carbon compound;
a fourth flow path connected to the synthesis unit;
a fifth flow path connected to the synthesis unit;
a fourth detector configured to measure a total flow rate per unit time of the intermediate compound and the second raw material in a first fluid flowing through the third flow path to generate a fourth data signal;
a fifth detector configured to measure at least one selected from the group consisting of a flow rate per unit time of a first substance in a second fluid flowing from the synthesis unit through the fourth flow path, a concentration of the first substance, a temperature of the second fluid, and a pressure of the second fluid, to generate a fifth data signal; and
a sixth detector configured to measure at least one selected from the group consisting of a flow rate per unit time of a second substance in a third fluid flowing from the synthesis unit through the fifth flow path, a concentration of the second substance, a temperature of the third fluid, and a pressure of the third fluid, to generate a sixth data signal, wherein
the integration controller is configured to collate measured data in the first to sixth data signals with the plan data corresponding to the measured data, and generate, according to a collation result, the first to third control signals.

Assignees

• Toshiba Kk
• Toshiba Energy Systems & Solutions Corp

Inventors

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

Classifications

• B01J19/0033 Primary

  Optimalisation processes, i.e. processes with adaptive control systems (adaptive control systems per se G05B13/00) · CPC title

• B01J8/082

  Controlling processes · CPC title

• C07C1/12

  from carbon dioxide with hydrogen · CPC title

• C25B1/23 Primary

  Carbon monoxide or syngas · CPC title

• C25B15/023

  Measuring, analysing or testing during electrolytic production · CPC title