RU97118457A - AMMONIA CONVERSION METHOD - Google Patents

AMMONIA CONVERSION METHOD

Info

Publication number
RU97118457A
RU97118457A RU97118457/25A RU97118457A RU97118457A RU 97118457 A RU97118457 A RU 97118457A RU 97118457/25 A RU97118457/25 A RU 97118457/25A RU 97118457 A RU97118457 A RU 97118457A RU 97118457 A RU97118457 A RU 97118457A
Authority
RU
Russia
Prior art keywords
catalyst
stage
layer
gas mixture
platinum
Prior art date
Application number
RU97118457/25A
Other languages
Russian (ru)
Other versions
RU2119889C1 (en
Inventor
В.И. Чернышев
Е.А. Бруштейн
А.Г. Тарарыкин
Original Assignee
В.И. Чернышев
Filing date
Publication date
Application filed by В.И. Чернышев filed Critical В.И. Чернышев
Priority to RU97118457A priority Critical patent/RU2119889C1/en
Priority claimed from RU97118457A external-priority patent/RU2119889C1/en
Application granted granted Critical
Publication of RU2119889C1 publication Critical patent/RU2119889C1/en
Priority to PCT/RU1998/000380 priority patent/WO1999025667A2/en
Publication of RU97118457A publication Critical patent/RU97118457A/en

Links

Claims (4)

1. Способ конверсии аммиака путем пропускания газовой смеси, включающей аммиак и кислородосодержащий газ сквозь двухступенчатую каталитическую систему, в которой первой ступенью по ходу газовой смеси является слой платиноидных сеток, а второй ступенью - слой оксидного неплатиноидного катализатора, отличающийся тем, что слой оксидного неплатиноидного катализатора имеет сотовую структуру и в струях газовой смеси, двигающихся по сотовым каналам катализатора второй ступени, поддерживают отношение средней рабочей скорости к скорости звука в этих условиях в интервале 4,8•10-4-0,024.1. Method for the conversion of ammonia by passing a gas mixture comprising ammonia and oxygen-containing gas through a two-stage catalytic system, in which the first step along the gas mixture is a layer of platinum-like nets, and the second step is a layer of oxide non-platinum catalyst, characterized in that the layer of oxide non-plate oxide catalyst has a honeycomb structure and jets of the gas mixture moving through the cellular channels of the catalyst of the second stage, support the ratio of average operating speed to speed of sound and under these conditions in the range of 4.8 • 10 -4 -0.024. 2. Способ по п.1, отличающийся тем, что на первой ступени конвертируют 86 - 97% от общего количества перерабатываемого NH3.2. The method according to claim 1, characterized in that at the first stage 86 - 97% of the total amount of NH 3 being processed is converted. 3. Способ по п.1, отличающийся тем, что в качестве катализатора первой ступени используют состав катализаторов выбранного ряда:
Pt - 92,5, Pd - 4, Rh - 3,5%;
Pt - 81, Pd - 15, Rh - 3,5, Ru - 0,5%;
Pt - 92,5, Rh - 7,5%;
Pt - 95, Rh - 5%;
a также катализатор и сорбент платиноидов состава: Pd - 95, Ni - 5%.3. The method according to claim 1, characterized in that the catalyst composition of the selected series is used as the catalyst of the first stage:
Pt - 92.5, Pd - 4, Rh - 3.5%;
Pt - 81, Pd - 15, Rh - 3.5, Ru - 0.5%;
Pt - 92.5, Rh - 7.5%;
Pt - 95, Rh - 5%;
as well as the catalyst and sorbent of platinum group: Pd - 95, Ni - 5%. 4. Способ по п.1, отличающийся тем, что в качестве катализатора второй ступени используют состав катализаторов выбранного ряда:
Fe2O3 - 92 и Cr2O3 - 8%;
Fe2O3 - 89,5, ZrO2 - 5, MgO - 5, ZrBaO - 0,5%;
Fe2O3 - 79, Al2O3 - 20, MgO - 1%;
Fe2O3 - 79,7, Al2O3 - 20, V2O5 - 0,3%;
перовскит - 90, Al2O3 - 8, SiO2 - 2%.4. The method according to claim 1, characterized in that the catalyst composition of the selected series is used as the catalyst of the second stage:
Fe 2 O 3 - 92 and Cr 2 O 3 - 8%;
Fe 2 O 3 - 89.5, ZrO 2 - 5, MgO - 5, ZrBaO - 0.5%;
Fe 2 O 3 - 79, Al 2 O 3 - 20, MgO - 1%;
Fe 2 O 3 - 79.7, Al 2 O 3 - 20, V 2 O 5 - 0.3%;
perovskite - 90, Al 2 O 3 - 8, SiO 2 - 2%.
RU97118457A 1997-11-14 1997-11-14 Ammonia conversion method RU2119889C1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
RU97118457A RU2119889C1 (en) 1997-11-14 1997-11-14 Ammonia conversion method
PCT/RU1998/000380 WO1999025667A2 (en) 1997-11-14 1998-11-13 Method for the conversion of ammonia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU97118457A RU2119889C1 (en) 1997-11-14 1997-11-14 Ammonia conversion method

Publications (2)

Publication Number Publication Date
RU2119889C1 RU2119889C1 (en) 1998-10-10
RU97118457A true RU97118457A (en) 1999-03-20

Family

ID=20198777

Family Applications (1)

Application Number Title Priority Date Filing Date
RU97118457A RU2119889C1 (en) 1997-11-14 1997-11-14 Ammonia conversion method

Country Status (2)

Country Link
RU (1) RU2119889C1 (en)
WO (1) WO1999025667A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2145935C1 (en) 1999-08-11 2000-02-27 Институт катализа им.Г.К.Борескова СО РАН Method of ammonia conversion

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU300057A1 (en) * 1969-01-06 1973-04-17
SU771958A1 (en) * 1975-12-19 1995-05-27 Н.В. Добровольская Catalyzer for second stage of ammonia oxidizing
SU727209A1 (en) * 1977-08-16 1980-04-15 Харьковский политехнический институт им. В.И.Ленина Second-stage catalyst for ammonia oxidation
RU1102183C (en) * 1982-07-22 1994-12-30 Государственный научно-исследовательский и проектный институт азотной промышленности и продуктов органического синтеза Method of catalytic oxidation of ammonia
US4812300A (en) * 1987-07-13 1989-03-14 Sri-International Selective perovskite catalysts to oxidize ammonia to nitric oxide

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