SU602212A1 - Method of purifying gases from nitrogen oxides - Google Patents
Method of purifying gases from nitrogen oxidesInfo
- Publication number
- SU602212A1 SU602212A1 SU762307408A SU2307408A SU602212A1 SU 602212 A1 SU602212 A1 SU 602212A1 SU 762307408 A SU762307408 A SU 762307408A SU 2307408 A SU2307408 A SU 2307408A SU 602212 A1 SU602212 A1 SU 602212A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- nitrogen oxides
- sulfoxides
- absorbent
- purifying gases
- purification
- Prior art date
Links
Landscapes
- Treating Waste Gases (AREA)
Description
1one
Изобретение относитс к способам очистки отход щих промышленных газов от окислов азота и может найти применение при очистке газов в химической, нефтехимической и металлургической промышленности.The invention relates to methods for purifying waste industrial gases from nitrogen oxides and may find application in the purification of gases in the chemical, petrochemical, and metallurgical industries.
Известен способ очистки газов от окислов азота путем поглощени их водной суспензией гидроокиси кальци 1. Недостатком этого способа вл етс невозможность регенерации поглотител .A known method of purifying gases from nitrogen oxides by absorbing them with an aqueous suspension of calcium hydroxide 1. The disadvantage of this method is the impossibility of regenerating the absorber.
Наиболее близким к предложенному способу по технической сущности вл етс способ, в котором абсорбцию окислов азота провод т с применением -диметилсульфоксида 2. Недостатком этого способа вл етс также незначительна емкость сорбента по окислам азота , не превышающа 0,15 г на 1 г абсорбента при 30°С, а также низка термическа устойчивость ди.метилсульфоксида, что приводит к значительному разложению последнего на стадии регенерации и усложнению технологического процесса.The closest to the proposed method to the technical nature is a method in which the absorption of nitrogen oxides is carried out using dimethyl sulfoxide 2. The disadvantage of this method is also the insignificant sorbent capacity for nitrogen oxides, not exceeding 0.15 g per 1 g of absorbent at 30 ° C, as well as the low thermal stability of dimethylsulfoxide, which leads to a significant decomposition of the latter at the regeneration stage and complication of the technological process.
С целью повыщени степени очистки от ОКИСЛОВ азота и упрощени технологического процесса предлагают способ, отличающийс от известного те.ад, что в качестве абсорбента используют смесь нефт ных сульфоксидов со средним молекул рным весом 220-280.In order to increase the degree of purification of nitrogen oxides and simplify the technological process, a method is proposed that differs from the known process that a mixture of petroleum sulfoxides with an average molecular weight of 220-280 is used as an absorbent.
Сульфоксиды представл ют собой масл нистую , прозрачную, коричневого цвета жидкость со слабы.м специфическим запахом и удельным весом око.ю I.Sulfoxides are an oily, clear, brown-colored liquid with a weak specific odor and an oka specific gravity of I.
Очистка газов от окислов азота проводитс в аппаратах противоточного типа при Teiviпературе от -30 до .Gas purification from nitrogen oxides is carried out in countercurrent-type devices at a Teivi temperature from -30 to.
Степень поглощени окислов азота сульфоксидами составл ет 98-99%. Регенераци поглотител проводитс при пониженно.м давлении (40-50 мм рт. ст.)с небольшим подогрево.м (40--60 С).The degree of absorption of nitrogen oxides by sulfoxides is 98-99%. Regeneration of the absorber is carried out at a reduced pressure (40-50 mm Hg) with a small preheating (40--60 ° C).
При.мер. Газ, содержащий 10 об. окислов азота, пропускают через раствор нефт ных сульфоксидов (молекул рный вес 260) при 10°С до насыщени раствора. Затем производ т регенерацию сульфоксидов и определ ют количество поглощенных окислов азота, которое в указанных услови х составл ет 0,53 г на 1 г сульфоксидов. При 30°С емкость сульфок сидов ло окислам азота равн етс 0,3l г H;I 1 г абсорбента.Example. Gas containing 10 vol. nitrogen oxides are passed through a solution of petroleum sulfoxides (molecular weight 260) at 10 ° C to saturate the solution. Then, sulfoxides are regenerated and the amount of absorbed nitrogen oxides is determined, which under the specified conditions is 0.53 g per 1 g of sulfoxides. At 30 ° C, the capacity of sulfonic acid sols to nitrogen oxides is 0.3 l g H; I 1 g absorbent.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU762307408A SU602212A1 (en) | 1976-01-04 | 1976-01-04 | Method of purifying gases from nitrogen oxides |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU762307408A SU602212A1 (en) | 1976-01-04 | 1976-01-04 | Method of purifying gases from nitrogen oxides |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU602212A1 true SU602212A1 (en) | 1978-04-15 |
Family
ID=20643294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU762307408A SU602212A1 (en) | 1976-01-04 | 1976-01-04 | Method of purifying gases from nitrogen oxides |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU602212A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001026784A1 (en) * | 1999-10-12 | 2001-04-19 | Lextran Ltd. | A method for removing acidic gases from waste gas |
-
1976
- 1976-01-04 SU SU762307408A patent/SU602212A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001026784A1 (en) * | 1999-10-12 | 2001-04-19 | Lextran Ltd. | A method for removing acidic gases from waste gas |
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