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RU95112425A - METHOD FOR PRODUCING NITROGEN OXIDES - Google Patents

METHOD FOR PRODUCING NITROGEN OXIDES

Info

Publication number
RU95112425A
RU95112425A RU95112425/25A RU95112425A RU95112425A RU 95112425 A RU95112425 A RU 95112425A RU 95112425/25 A RU95112425/25 A RU 95112425/25A RU 95112425 A RU95112425 A RU 95112425A RU 95112425 A RU95112425 A RU 95112425A
Authority
RU
Russia
Prior art keywords
nitrogen
oxidation
catalyst
stage
ammonia
Prior art date
Application number
RU95112425/25A
Other languages
Russian (ru)
Other versions
RU2070865C1 (en
Inventor
М.М. Караваев
Ю.А. Иванов
И.М. Кисиль
А.А. Лоцман
Б.И. Пихтовников
В.М. Зарубин
Н.В. Юргенсон
Original Assignee
Общество с ограниченной ответственностью "Нитрохим"
Filing date
Publication date
Application filed by Общество с ограниченной ответственностью "Нитрохим" filed Critical Общество с ограниченной ответственностью "Нитрохим"
Priority to RU95112425/25A priority Critical patent/RU2070865C1/en
Priority claimed from RU95112425/25A external-priority patent/RU2070865C1/en
Application granted granted Critical
Publication of RU2070865C1 publication Critical patent/RU2070865C1/en
Publication of RU95112425A publication Critical patent/RU95112425A/en

Links

Claims (6)

1. Способ получения оксидов азота каталитическим окислением аммиака кислородом воздуха на двухступенчатом катализаторе при повышенных температуре и давлении, отличающийся тем, что в полученные при окислении аммиака на первой ступени катализатора нитрозные газы вводят поток газа, содержащий кислородные соединения азота, и осуществляют окисление ими молекулярного азота нитрозных газов на второй ступени катализатора.1. A method of producing nitrogen oxides by catalytic oxidation of ammonia by atmospheric oxygen on a two-stage catalyst at elevated temperature and pressure, characterized in that a gas stream containing oxygen compounds of nitrogen is introduced into the nitrous gases obtained during the oxidation of ammonia at the first stage of the catalyst and they oxidize molecular nitrogen nitrous gases in the second stage of the catalyst. 2. Способ по п. 1, отличающийся тем, что концентрацию вводимых кислородных соединений азота в получаемой при смешении с нитрозными газами смеси поддерживают на уровне от 0,1 до 2,2 об.%. 2. The method according to p. 1, characterized in that the concentration of introduced oxygen compounds of nitrogen in the mixture obtained by mixing with nitrous gases is maintained at a level of from 0.1 to 2.2 vol.%. 3. Способ по пп. 1 и 2, отличающийся тем, что процесс окисления азота ведут при температурах 900 - 450oС и линейных скоростях газов 0,8 - 5,0 м/с р.усл.3. The method according to PP. 1 and 2, characterized in that the process of nitrogen oxidation is carried out at temperatures of 900 - 450 o C and linear gas velocities of 0.8 - 5.0 m / s rus. 4. Способ по пп.1 - 3, отличающийся тем, что в качестве кислородных соединений азота используют пары азотной кислоты или их смесь с оксидами азота. 4. The method according to claims 1 to 3, characterized in that as the oxygen compounds of nitrogen, nitric acid vapors or a mixture thereof with nitrogen oxides are used. 5. Способ по пп. 1 - 4, отличающийся тем, что в качестве катализатора окисления азота используют платину, ее сплавы или оксиды термостойких металлов с добавками. 5. The method according to PP. 1 to 4, characterized in that as a catalyst for the oxidation of nitrogen use platinum, its alloys or oxides of heat-resistant metals with additives. 6. Способ по пп.1 - 5, отличающийся тем, что процесс окисления азота осуществляют в присутствии восстановителя, например аммиака, в количестве до 1,2 об.%. 6. The method according to claims 1 to 5, characterized in that the process of nitrogen oxidation is carried out in the presence of a reducing agent, for example ammonia, in an amount of up to 1.2 vol.%.
RU95112425/25A 1995-07-19 1995-07-19 Method of producing nitrogen oxides RU2070865C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU95112425/25A RU2070865C1 (en) 1995-07-19 1995-07-19 Method of producing nitrogen oxides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU95112425/25A RU2070865C1 (en) 1995-07-19 1995-07-19 Method of producing nitrogen oxides

Publications (2)

Publication Number Publication Date
RU2070865C1 RU2070865C1 (en) 1996-12-27
RU95112425A true RU95112425A (en) 1997-07-10

Family

ID=20170285

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95112425/25A RU2070865C1 (en) 1995-07-19 1995-07-19 Method of producing nitrogen oxides

Country Status (1)

Country Link
RU (1) RU2070865C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2174946C1 (en) * 2000-12-27 2001-10-20 Караваев Михаил Михайлович Method of preparation of nitric acid

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