CN1100592C - Liquid for treating waste gas contg. nitrogen oxides - Google Patents
Liquid for treating waste gas contg. nitrogen oxides Download PDFInfo
- Publication number
- CN1100592C CN1100592C CN00114647A CN00114647A CN1100592C CN 1100592 C CN1100592 C CN 1100592C CN 00114647 A CN00114647 A CN 00114647A CN 00114647 A CN00114647 A CN 00114647A CN 1100592 C CN1100592 C CN 1100592C
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- waste gas
- liquid
- nitrogen oxides
- treating waste
- gas contg
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Abstract
The present invention discloses oxynitride treating liquid. The prescription and the content of each component are 2% to 10% of NaOH, 4% to 20% of Na2S and surplus water. Treated waste gas conforms to the requirement of environmental protection to waste gas discharge without obvious smell and color. The treating liquid has the advantages of stability and low cost, a plurality of hundred yuan is used for investment at one time, and treatment can be continuously carried out for about one month.
Description
Technical field: the present invention relates to a kind of chemical treatments, relate in particular to a kind of to containing nitrogen oxide (NO
x) the nitrous oxides exhaust gas treatment fluid handled of waste gas.
Background technology: in chemical industry such as nitrogen fertilizer production and diamond production process, owing to producing and using a large amount of red fuming nitric acid (RFNA)s to produce a large amount of NO, NO of containing
2Waste gas, these waste gas form the strong impulse smog of yellow or rufous in air, and send the people's that chokes smell, the severe contamination air, people and animals, plant, hardware, electric power facility, building etc. are caused serious harm, thereby must could discharge through handling.According to " three wastes processing Technical Manual-Engineering ", Liu Tianqi, " Chemical Industry Press ", 1999,5 one book introductions, what present processing method adopted is: one: catalytic reduction method, this method be utilize different reducing agents under the effect of uniform temperature and catalyst with NO
xBe reduced to harmless nitrogen G﹠W; Two: liquid absorption method; Three: the solid absorption method; Wherein the investment of catalytic reduction method and solid absorption method is bigger, the disposal cost height, thereby commonly used be liquid absorption method, this method can be divided into again: 1, the nitric acid absorption process, 2, ammonia alkali solution two-stage absorption process, 3, alkali-ammonium sulfite absorption process, 4, the sodium thiosulfate absorption process, 5, the nitric acid oxidation alkali absorption method, 6, the complexed absorption method, 7, urea reduction method, 8, the urea liquid absorption process, alkali lye that above-mentioned these methods adopt is NaOH or sodium carbonate, though offset except that nitrogen oxide certain effect is arranged, but the smog after handling still contains adularescent or brown fume, and has pungent niff.Along with the strict control to environmental protection requirement of the raising of whole people's environmental consciousness and government, above-mentioned processing method does not still reach the requirement of discharging, so becoming a great problem at present aspect the processing of diamond process gas.
Summary of the invention: in order to solve NO, the NO that produces in the chemical industry production
2The treatment of waste gas problem, the invention provides a kind of simple, small investment of filling a prescription, effective be used in particular for diamond produce in the nitrous oxides exhaust gas treatment fluid of exhaust-gas treatment.
Technical scheme of the present invention realizes in the following manner:
A kind of nitrogen oxide treatment fluid, its prescription is as follows:
NaOH： 2％＿10％
Na
2S： 4％＿20％
Water: surplus
Above-mentioned prescription is dropped into liquid reserve tank in proportion to stir and can use.
Good effect of the present invention is:
1, waste gas does not have tangible smell after treatment, and no obvious color meets environmental protection to toxic emission
Requirement.
2, treatment fluid is stable, and cost is low, and this treatment fluid once feeds intake, and can handle about 1 month continuously.
Description of drawings:
Fig. 1 is processing technological flow figure of the present invention.
The specific embodiment:
The invention will be further described below in conjunction with drawings and Examples.
Embodiment sees attached list
Subordinate list
By Fig. 1 and embodiment as can be seen, cleaning principle of the present invention is for to be pressed into purifying column 4 bottoms by suspended hood 1, ajutage 3 with nitrous oxides exhaust gas with blower fan 2, waste gas from bottom to top, move upward through packing layer 5, treatment fluid 9 usefulness water pumps 7 are pressed in the jet pipe in the purifying column by pipette 8, spray piping 6, fully react with the nitrogen oxides from exhaust gas counter current contacting through nozzle ejection downwards, layering is handled and after return pipe 10 returns liquid reserve tank 9, thereby eliminates the purpose that nitrogen oxides of exhaust gas reaches emission request.
Claims (1)
1, a kind of nitrogen oxide treatment fluid, its prescription and each component content are as follows:
NaOH： 2％＿10％
Na
2S： 4％＿20％
Water: surplus
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00114647A CN1100592C (en) | 2000-06-20 | 2000-06-20 | Liquid for treating waste gas contg. nitrogen oxides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00114647A CN1100592C (en) | 2000-06-20 | 2000-06-20 | Liquid for treating waste gas contg. nitrogen oxides |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1287874A CN1287874A (en) | 2001-03-21 |
| CN1100592C true CN1100592C (en) | 2003-02-05 |
Family
ID=4584296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00114647A Expired - Fee Related CN1100592C (en) | 2000-06-20 | 2000-06-20 | Liquid for treating waste gas contg. nitrogen oxides |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1100592C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102188891B (en) * | 2011-05-06 | 2013-05-22 | 北京化工大学 | Purification process for acid oxidation and alkaline reduction of waste gas containing nitrogen oxide |
| CN102728203A (en) * | 2012-07-10 | 2012-10-17 | 华纺股份有限公司 | Method for purifying yellow smoke generated during printing and dyeing true wax printed figured cloth |
| CN105642088A (en) * | 2016-03-16 | 2016-06-08 | 南京曜灵环保科技有限公司 | Device and method for treating polyamine organic waste gas |
| CN109279602B (en) * | 2018-11-30 | 2023-04-28 | 黄冈师范学院 | Diamond recovery method, device and application for improving nitric acid utilization rate |
| CN111715052B (en) * | 2019-03-20 | 2021-09-03 | 中国科学院大连化学物理研究所 | Method for synergistically and efficiently reducing emission of dioxin substances and NOx in household garbage incineration process |
| CN109908733B (en) * | 2019-04-22 | 2021-09-21 | 苏州清控环保科技有限公司 | Green and efficient nitrogen oxide waste gas treatment method |
| CN111992018A (en) * | 2020-08-21 | 2020-11-27 | 福建华威钜全精工科技有限公司 | Yellow tobacco treatment easy preparation and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105418A (en) * | 1985-07-16 | 1986-04-10 | 北京工业大学 | Administer the denitrating catalyst of high concentration nitrogen oxide |
-
2000
- 2000-06-20 CN CN00114647A patent/CN1100592C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85105418A (en) * | 1985-07-16 | 1986-04-10 | 北京工业大学 | Administer the denitrating catalyst of high concentration nitrogen oxide |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1287874A (en) | 2001-03-21 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |