RU97111924A - METHOD FOR PRODUCING NITROGEN OXIDES - Google Patents

METHOD FOR PRODUCING NITROGEN OXIDES

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Publication number
RU97111924A
RU97111924A RU97111924/25A RU97111924A RU97111924A RU 97111924 A RU97111924 A RU 97111924A RU 97111924/25 A RU97111924/25 A RU 97111924/25A RU 97111924 A RU97111924 A RU 97111924A RU 97111924 A RU97111924 A RU 97111924A
Authority
RU
Russia
Prior art keywords
catalyst
nitrogen
nitrogen oxides
layers
producing nitrogen
Prior art date
Application number
RU97111924/25A
Other languages
Russian (ru)
Inventor
М.М. Караваев
Ю.А. Иванов
Б.И. Пихтовников
М.И. Матросова
И.И. Макаров
В.Н. Негодяев
Original Assignee
Научно-производственная фирма ООО "НИТРОХИМ"
Filing date
Publication date
Application filed by Научно-производственная фирма ООО "НИТРОХИМ" filed Critical Научно-производственная фирма ООО "НИТРОХИМ"
Publication of RU97111924A publication Critical patent/RU97111924A/en

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Claims (2)

1. Способ получения оксидов азота путем окисления аммиака кислородом воздуха и азота нитрозных газов его кислородными соединениями на каталитической системе, состоящей из двух ступеней катализатора различного состава, отличающийся тем, что в качестве первой ступени используют неплатиновый катализатор окисления аммиака на основе оксидов железа или кобальта с добавками, а в качестве второго слоя - катализатор-окисления молекулярного азота, содержащий оксид термостойкого металла с активирующими добавками, при этом поток основного газа проводят последовательно через указанные I и II слои, а во второй слой катализатора дополнительно вводят газовую смесь, содержащую кислородные соединения азота.1. A method of producing nitrogen oxides by oxidizing ammonia with atmospheric oxygen and nitrous gas nitrogen with its oxygen compounds on a catalytic system consisting of two stages of a catalyst of various compositions, characterized in that the non-platinum ammonia oxidation catalyst based on iron or cobalt oxides is used as the first stage additives, and as the second layer, a molecular nitrogen oxidation catalyst containing oxide of heat-resistant metal with activating additives, while the flow of the main gas conduct sequentially through the specified I and II layers, and a gas mixture containing oxygen compounds of nitrogen is additionally introduced into the second catalyst layer. 2. Способ по п.1, отличающейся тем, что соотношение высот первого и второго слоев катализатора составляет 1:(2 - 4). 2. The method according to claim 1, characterized in that the ratio of the heights of the first and second layers of the catalyst is 1: (2 to 4).
RU97111924/25A 1997-07-09 METHOD FOR PRODUCING NITROGEN OXIDES RU97111924A (en)

Publications (1)

Publication Number Publication Date
RU97111924A true RU97111924A (en) 1999-06-10

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