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US 8,617,494 B2Granted
Condenser and method for cleaning flue gases
AssigneeALSTOM Technology Ltd
InventorsWuyin Wang, Stefan Ahman
Life of this patent
Estimating the term…
Abstract
An apparatus and method to clean flue gases. As shown in FIG. 1, a condenser 10 is provided having two packed beds (20/26) and two condensate loops. The condensate loops are configured such that anti-corrosive agent (40/41) may injected. Corrosives are removed from flue gases as condensate containing anti-corrosive agents passes over the flue gases.
Claims20
A condenser, comprising:
- a column member having a lower end, an upper end and a wall connecting the lower end and upper end forming a central cavity;
- a first packed bed within the cavity above the lower end;
- at least a second packed bed within the cavity above the first packed bed;
- a first heat exchanger configured to receive condensate flow from the first packed bed;
- a second heat exchanger configured to receive condensate flow at least in part from the second packed bed;
- at least a first valve connected to a condensate flow of a packed bed;
- wherein the lower end of the column member is configured to receive flue gases via a gas inlet;
- wherein the upper end is configured to permit flue gases to exit the column member via a gas outlet;
- wherein the packed beds are configured to provide a flow of condensate in an opposite direction of a flue gas flow;
- wherein anti-corrosive reagents are injected into condensate flows via at least the first valve.
7 more elements
A condenser, comprising:
- a column member having a lower end, an upper end and a wall connecting the lower end and upper end forming a central cavity;
- a first packed bed within the cavity above the lower end;
- at least a second packed bed within the cavity above the first packed bed;
- wherein the lower end of the column member is configured to receive flue gases via a gas inlet;
- wherein the upper end allows gases to exit the column member via a gas outlet;
- wherein the condenser is configured to receive anti-corrosive reagents in a condensate flow of the condenser.
3 more elements
A method to clean flue gases, comprising:
- transmitting the flue gases to a condenser having a lower end, an upper end, and a side wall connecting the lower end and upper end to form a column with a central cavity;
- injecting the flue gases into the lower end of the condenser;
- transmitting the flue gases upwards through the condenser;
- transmitting the flue gases out of the condenser at the upper end of the column;
- forming condensate from the flue gases as the flue gases pass upwards through the condenser;
- cleaning the flue gases by adding anti-corrosive reagents to the condensate;
- wherein the condenser contains a least two packed beds;
- wherein the condenser has at least two condensate loops;
- wherein each condensate loop is connected to a heat exchanger.
6 more elements
Dependencies are inferred from the claim text.