NL7515118A - Continuous removal of sulphur dioxide from waste flue gases - using computers to monitor and adjust scrubbing soln of lime - Google Patents
Continuous removal of sulphur dioxide from waste flue gases - using computers to monitor and adjust scrubbing soln of limeInfo
- Publication number
- NL7515118A NL7515118A NL7515118A NL7515118A NL7515118A NL 7515118 A NL7515118 A NL 7515118A NL 7515118 A NL7515118 A NL 7515118A NL 7515118 A NL7515118 A NL 7515118A NL 7515118 A NL7515118 A NL 7515118A
- Authority
- NL
- Netherlands
- Prior art keywords
- soln
- reactor
- product
- lime
- computers
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D21/00—Control of chemical or physico-chemical variables, e.g. pH value
- G05D21/02—Control of chemical or physico-chemical variables, e.g. pH value characterised by the use of electric means
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Treating Waste Gases (AREA)
Abstract
In the continuous treatment of chimney gases contg. SO2, the gas is scrubbed in a spray tower with an aq. soln. of a reactant to form a prim. product (1) and the soln. is then fed through a full reactor in which product (1) forms a sec., stable reaction product (2); reactor (2) is continuously monitored in two separate zones where the pH is measured, compared with a standard value and used for automatic process control; part of the soln. in the reactor is continuously removed for pptn. of product (2) and return of the soln. to the reactor, whereas another part of the soln. in the reactor is recycled through the tower. The monitors are pref. linked to obtain an optimum concn. in the recycled soln. pref. reactants including Ca(OH)2, CaCO3, Na2CO3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7515118A NL7515118A (en) | 1975-12-29 | 1975-12-29 | Continuous removal of sulphur dioxide from waste flue gases - using computers to monitor and adjust scrubbing soln of lime |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7515118A NL7515118A (en) | 1975-12-29 | 1975-12-29 | Continuous removal of sulphur dioxide from waste flue gases - using computers to monitor and adjust scrubbing soln of lime |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7515118A true NL7515118A (en) | 1977-07-01 |
Family
ID=19825099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7515118A NL7515118A (en) | 1975-12-29 | 1975-12-29 | Continuous removal of sulphur dioxide from waste flue gases - using computers to monitor and adjust scrubbing soln of lime |
Country Status (1)
| Country | Link |
|---|---|
| NL (1) | NL7515118A (en) |
-
1975
- 1975-12-29 NL NL7515118A patent/NL7515118A/en not_active Application Discontinuation
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BV | The patent application has lapsed |