JPS54143195A - Sulfuric acid sampling method for waste gases - Google Patents
Sulfuric acid sampling method for waste gasesInfo
- Publication number
- JPS54143195A JPS54143195A JP4972278A JP4972278A JPS54143195A JP S54143195 A JPS54143195 A JP S54143195A JP 4972278 A JP4972278 A JP 4972278A JP 4972278 A JP4972278 A JP 4972278A JP S54143195 A JPS54143195 A JP S54143195A
- Authority
- JP
- Japan
- Prior art keywords
- sulfuric acid
- waste gases
- pass
- freezing point
- dusts
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
PURPOSE: To effectively trap the sulfuric acid content in waste gases by making the waste gases, which contain dusts and gas or mist sulfuric acid, pass through a dust filter at a temperature higher than the freezing point of sulfuric acid so that the dusts may be filtered and by making the gases pass through a spiral pipe and a membrane filter at a temperature lower than the same freezing point.
CONSTITUTION: The waste gases in a flue 1, which are sucked through such a sampling pipe 2 as is heated by a heater 3 at a temperature higher than the freezing point of sulfuric acid and lower than the decomposing point of the same, e.g., about 200 to 300°C, are made to pass through a dust filter (preferably of a cylindrical filter paper) 4 to remove the dusts (whereas the mist sulfuric acid in the waste gases are allowed to pass in the gas state). The waste gases thus treated are then guided into the spiral pipe 7, which is arranged in a glycerin bath 9 and held at a temperature of 150W80°C (which is lower than the freezing point of sulfuric acid), and are made to pass therethrough at a flow rate higher than about 20W15 litters/min so that most of the sulfuric acid content is trapped in the liquid state. The waste gases are then further made to pass through a membrane filter 8 having a pore diameter smaller than about 8 micron so that the remaining mist sulfuric acid may be trapped.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4972278A JPS54143195A (en) | 1978-04-28 | 1978-04-28 | Sulfuric acid sampling method for waste gases |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4972278A JPS54143195A (en) | 1978-04-28 | 1978-04-28 | Sulfuric acid sampling method for waste gases |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54143195A true JPS54143195A (en) | 1979-11-08 |
JPS5648817B2 JPS5648817B2 (en) | 1981-11-18 |
Family
ID=12839073
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4972278A Granted JPS54143195A (en) | 1978-04-28 | 1978-04-28 | Sulfuric acid sampling method for waste gases |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54143195A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5952923U (en) * | 1982-09-30 | 1984-04-07 | 株式会社松和 | Bags |
-
1978
- 1978-04-28 JP JP4972278A patent/JPS54143195A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5648817B2 (en) | 1981-11-18 |
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