System for collecting carbon dioxide in flue gas
First Claim
1. A system for collecting carbon dioxide in flue gas, comprising:
- a stack that has an entrance and an exit of the flue gas, the exit being arranged at a top of the stack, and the entrance being arranged at a lower portion of the stack and, connected to an industrial facility for taking in the flue gas to be discharged to outside from the exit;
a blower that is installed at a downstream side of the stack and draws the flue gas therein;
a carbon-dioxide collecting device that collects carbon dioxide in the flue gas drawn in by the blower;
one or more sensor(s) measuring gas temperature or gas type, one of the one or more sensor(s) being arranged at a position within the stack at the exit of the flue gas; and
a controller connected to the blower and the sensor, the controller receiving signals corresponding to the gas temperature or the gas type from the sensor, whereinthe controller is configured to control the blower to increase a drawing amount of the flue gas to the carbon-dioxide collecting device until the gas temperature or a concentration of the gas type changes in the sensor due to atmosphere flowing into the stack from the exit of the flue gas, andthe controller is configured to stop drawing in any more than the amount immediately before the gas temperature or the concentration of the gas type start changing, and to control the blower to draw in the flue gas by a substantially constant amount.
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Accused Products
Abstract
A system for collecting carbon dioxide in flue gas includes a stack that discharges flue gas discharged from an industrial facility to outside, a blower that is installed at the downstream side of the stack and draws the flue gas therein, a carbon-dioxide collecting device that collects carbon dioxide in the flue gas drawn in by the blower, and a gas flow sensor arranged near an exit side within the stack. A drawing amount of the flue gas by the blower to the carbon-dioxide collecting device is increased until an flow rate of the flue gas from the stack becomes zero in the gas flow sensor, and when the discharged amount of flue gas from the stack becomes zero, drawing in any more than that amount is stopped, and the carbon dioxide in the flue gas is collected while the flue gas is drawn in by a substantially constant amount.
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Citations
2 Claims
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1. A system for collecting carbon dioxide in flue gas, comprising:
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a stack that has an entrance and an exit of the flue gas, the exit being arranged at a top of the stack, and the entrance being arranged at a lower portion of the stack and, connected to an industrial facility for taking in the flue gas to be discharged to outside from the exit; a blower that is installed at a downstream side of the stack and draws the flue gas therein; a carbon-dioxide collecting device that collects carbon dioxide in the flue gas drawn in by the blower; one or more sensor(s) measuring gas temperature or gas type, one of the one or more sensor(s) being arranged at a position within the stack at the exit of the flue gas; and a controller connected to the blower and the sensor, the controller receiving signals corresponding to the gas temperature or the gas type from the sensor, wherein the controller is configured to control the blower to increase a drawing amount of the flue gas to the carbon-dioxide collecting device until the gas temperature or a concentration of the gas type changes in the sensor due to atmosphere flowing into the stack from the exit of the flue gas, and the controller is configured to stop drawing in any more than the amount immediately before the gas temperature or the concentration of the gas type start changing, and to control the blower to draw in the flue gas by a substantially constant amount. - View Dependent Claims (2)
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Specification