Steam efficiency with non depletive condensing and adiabatic solvent heating
US-9108123-B2 · Aug 18, 2015 · US
Systems and methods for treatment of flue gas
US9919266B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9919266-B2 |
| Application number | US-201614995774-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 14, 2016 |
| Priority date | Jan 14, 2016 |
| Publication date | Mar 20, 2018 |
| Grant date | Mar 20, 2018 |
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- Title
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Abstract
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A method for treating a flue gas that includes determining a sulfur trioxide concentration within the flue gas and determining an injection rate for a sulfur trioxide sorbent based upon the sulfur trioxide concentration. Also, a method for treating a flue gas that includes determining a sulfuric acid dew point for the flue gas and determining a coolant injection rate for a coolant to be injected into the flue gas to cause the flue gas to have a temperature of from about 20 to about 30° F. above the sulfuric acid dew point.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for treating a flue gas comprising: determining a sulfur trioxide concentration within the flue gas; and determining an injection rate for a sulfur trioxide sorbent based upon the sulfur trioxide concentration; determining a sulfuric acid dew point for the flue gas; and determining a coolant injection rate for a coolant to be injected into the flue gas to cause the flue gas to have a temperature of from about 20 to about 30° F. above the sulfuric acid dew point, wherein the coolant is injected into the flue gas upstream of the sulfur trioxide sorbent. 2. The method of claim 1 , further comprising injecting the sulfur trioxide sorbent into the flue gas at the determined injection rate. 3. The method of claim 1 , wherein determining the sulfur trioxide concentration within the flue gas comprises: determining one or more flue gas parameters; and determining the sulfur trioxide concentration within the flue gas based upon a relationship between the flue gas parameters and the sulfur trioxide concentration. 4. The method of claim 3 , wherein determining the one or more flue gas parameters comprises determining a flue gas sulfuric acid vapor pressure and determining a flue gas moisture. 5. The method of claim 4 , further comprising receiving a signal from a sulfuric acid vapor pressure sensor and a signal from a flue gas moisture sensor. 6. The method of claim 1 , wherein the sulfur trioxide sorbent comprises lime, limestone, trona, sodium bisulfate, or combinations thereof. 7. The method of claim 1 , further comprising cooling the flue gas to the temperature of from about 20 to about 30° F. above the sulfuric acid dew point upstream of the injection point of the sulfur trioxide sorbent. 8. The method of claim 7 , wherein cooling the flue gas to the temperature of from about 20 to about 30° F. above the sulfuric acid dew point comprises injecting the coolant at the coolant injection rate. 9. The method of claim 1 , wherein the coolant is atomized water. 10. The method of claim 1 , further comprising: combusting a fuel with air to form the flue gas and heat; and generating power using the heat, wherein determining the injection rate for the sulfur trioxide sorbent is further based upon at least one of: a power output, a composition of the fuel, or a combustion flowrate of the air.
Assignees
Inventors
Classifications
Sulfates · CPC title
- B01D53/508Primary
by treating the gases with solids · CPC title
Carbonates · CPC title
Injecting reactants · CPC title
of sodium · CPC title
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Frequently asked questions
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- What does patent US9919266B2 cover?
- A method for treating a flue gas that includes determining a sulfur trioxide concentration within the flue gas and determining an injection rate for a sulfur trioxide sorbent based upon the sulfur trioxide concentration. Also, a method for treating a flue gas that includes determining a sulfuric acid dew point for the flue gas and determining a coolant injection rate for a coolant to be injecte…
- Who is the assignee on this patent?
- Fluor Tech Corp
- What technology area does this patent fall under?
- Primary CPC classification B01D53/508. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Mar 20 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).