SU556133A1 - Method for producing formaldehyde - Google Patents
Method for producing formaldehydeInfo
- Publication number
- SU556133A1 SU556133A1 SU2126327A SU2126327A SU556133A1 SU 556133 A1 SU556133 A1 SU 556133A1 SU 2126327 A SU2126327 A SU 2126327A SU 2126327 A SU2126327 A SU 2126327A SU 556133 A1 SU556133 A1 SU 556133A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- formaldehyde
- methane
- producing formaldehyde
- producing
- carbon dioxide
- Prior art date
Links
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Description
1one
Данное изобретение относитс к способу получени формальдегида.This invention relates to a method for producing formaldehyde.
Известен способ получени формальдегида путем окислени метана 1. Процесс провод т при 600°С в присутствии алюмосиликатного катализатора, использу в качестве окислител кислород.A known method of producing formaldehyde by oxidizing methane is 1. The process is carried out at 600 ° C in the presence of an aluminosilicate catalyst, using oxygen as the oxidant.
Недостатком известного способа вл етс низка селективность образовани формальдегида , не превышающа 45 мол. %.The disadvantage of this method is the low selectivity of formaldehyde formation, not exceeding 45 mol. %
Предлагаетс при окислении метана в качестве окислител примен ть углекислый газ и процесс вести в плазмотроне при температуре 900-1000°С.It is proposed to use carbon dioxide as an oxidizing agent in the oxidation of methane and to conduct the process in the plasma torch at a temperature of 900-1000 ° C.
Согласно предлагаемому способу метан превращаетс в формальдегид с селективностью 100 мол. %, что позвол ет устранить трудоемкую стадию выделени формальдегида из продуктов реакции. Выход формальдегида на пропущепный метан составл ет 3 об. % за один проход. Способ не требует применени каких-либо катализаторов.According to the proposed method, methane is converted to formaldehyde with a selectivity of 100 mol. %, which eliminates the time-consuming stage of formaldehyde release from the reaction products. The yield of formaldehyde to the feed methane is 3 vol. % in one run. The method does not require the use of any catalysts.
П р н М е р. Окисление метана провод т в потоке низко темпратурной плазмы. Плазмотрон работает на посто нном токе на аргоне . Плазменную струю из плазмотрона подают в реактор (который изготовлен из двуокиси циркони с внутренним диаметром 10 мм, длиной канала 60 м), где перпендикул рно кPR n Mer. The oxidation of methane is carried out in a stream of low-temperature plasma. The plasma torch operates at a constant current on argon. The plasma jet from the plasma torch is fed to the reactor (which is made of zirconium dioxide with an internal diameter of 10 mm, a channel length of 60 m), where it is perpendicular to
ней последовательно ввод т углекислый газ и метай. Рассто ние между вводами метана и С02 составл ет 10 мм. Реакцию провод т при температуре 900-1000°С. Скорости подачи газа составл ют, г/сек: метана 0,2, углекисло го газа 1,2, аргона 1,5.carbon dioxide and methane are successively introduced thereto. The distance between the methane and C02 inlets is 10 mm. The reaction is carried out at a temperature of 900-1000 ° C. The gas feed rates are, g / s: methane 0.2, carbon dioxide 1.2, argon 1.5.
При выходе из зоны реакции продукты пиролиза охлаждают. Формальдегид выдел лс из газов поглощением листиллпповаипои водой при пропускании общей смеси через барбатер. Содержание целевого продукта определ лось титрованием по гидроксиламиновому методу. Выход формальдегида Зоб. % за проход при селективности 100%.When leaving the reaction zone, the pyrolysis products are cooled. Formaldehyde was released from gases by absorption of a sheet by water and by passing the total mixture through a barbater. The content of the target product was determined by hydroxylamine titration. Exit formaldehyde Goiter. % per pass with a selectivity of 100%.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2126327A SU556133A1 (en) | 1975-04-22 | 1975-04-22 | Method for producing formaldehyde |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2126327A SU556133A1 (en) | 1975-04-22 | 1975-04-22 | Method for producing formaldehyde |
Publications (1)
Publication Number | Publication Date |
---|---|
SU556133A1 true SU556133A1 (en) | 1977-04-30 |
Family
ID=20616904
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2126327A SU556133A1 (en) | 1975-04-22 | 1975-04-22 | Method for producing formaldehyde |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU556133A1 (en) |
-
1975
- 1975-04-22 SU SU2126327A patent/SU556133A1/en active
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