Process and apparatus for cooling a gas containing SO2 and/or SO3 and water
AssigneeOutotec (Finland) Oy
InventorsKarl-Heinz Daum, Hannes Storch, Ralf Neumann, Wolfram Schalk
Life of this patent
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Abstract
The above mentioned invention describes a process for cooling a gas mixture of SO2 and/or SO3 and water, wherein the gas mixture is cooled by means of a first heat exchanger carrying a coolant. The temperature of the coolant lies above the dew point of the gas or gas mixture.
Claims15
A process for cooling a gas mixture of SO2 and/or SO3 and water comprising cooling the gas mixture with a first heat exchanger carrying a coolant, wherein the temperature of the coolant lies above the dew point of the gas or gas mixture, the coolant is water, and the dew point τ given in ° C. is calculated according to the following equation:
- τ
- =
- e
- (
- 6.0006
- -
- (
- 3.158
- ·
- 10
- -
- 7
- p
- ·
- 1.244
- ·
- 10
- -
- 9
- ·
- c
- )
- )
- +
- (
- 0.1387
- ·
- ln
-
- (
- p
- ·
- 1.244
- ·
- 10
- -
- 9
- ·
- c
- )
- )
- with
- p
- =
- gas
-
-
- pressure
-
-
- in
-
-
- mbar
-
-
- a
-
-
- and
- c
- =
- water
-
-
- content
-
-
- in
-
-
- mg
- /
- Nm
- 3
- .
An apparatus for cooling a gas mixture of SO2 and/or SO3 and water comprising a first coolant-carrying heat exchanger with an inlet and an outlet for the coolant, a control or regulating device which adjusts the temperature of the coolant at the inlet to a temperature above the dew point of the gas or gas mixture, and a measuring device for determining the water content of the gas mixture, which is coupled with the control or regulating device such that the dew point τ given in ° C. is calculated according to the following equation:
- τ
- =
- e
- (
- 6.0006
- -
- (
- 3.158
- ·
- 10
- -
- 7
- p
- ·
- 1.244
- ·
- 10
- -
- 9
- ·
- c
- )
- )
- +
- (
- 0.1387
- ·
- ln
-
- (
- p
- ·
- 1.244
- ·
- 10
- -
- 9
- ·
- c
- )
- )
- with
- p
- =
- gas
-
-
- pressure
-
-
- in
-
-
- mbar
-
-
- a
-
-
- and
- c
- =
- water
-
-
- content
-
-
- in
-
-
- mg
- /
- Nm
- 3
- .
Dependencies are inferred from the claim text.