RU2014126869A - Катализатор конверсии водяного газа, функционирующий при средней температуре, и способ его производства - Google Patents

Катализатор конверсии водяного газа, функционирующий при средней температуре, и способ его производства Download PDF

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RU2014126869A
RU2014126869A RU2014126869A RU2014126869A RU2014126869A RU 2014126869 A RU2014126869 A RU 2014126869A RU 2014126869 A RU2014126869 A RU 2014126869A RU 2014126869 A RU2014126869 A RU 2014126869A RU 2014126869 A RU2014126869 A RU 2014126869A
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formula
compound
hydrotalcite
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Франческо БАЗИЛЕ
Джузеппе БРЕННА
Рафаэль ФОР
Джузеппе ФОРНАЗАРИ
Даниель ГАРИ
Анджело ВАККАРИ
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Л'Эр Ликид, Сосьете Аноним Пур Л'Этюд Э Л'Эксплуатасьон Де Проседе Жорж Клод
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Abstract

1. Соединение гидроталькитного типа формулы (I):[CuZnAl(OH)](A), k HO (I)где (А) означает либо карбонатный анион, либо силикатный анион,x>0, y>0, w>0, (x+y)=(1-w), 1<[(x+y)/w]<5 и1/99≤x/y≤1/1.2. Соединение гидроталькитного типа формулы (I) по п. 1, в котором атомное отношение x/y≤1/2.3. Соединение гидроталькитного типа формулы (I) по п. 2, в котором атомное отношение x/у≤1/5.4. Соединение гидроталькитного типа формулы (I) по одному из пп. 1-3, в котором атомное отношение х/у≥1/10.5. Соединение гидроталькитного типа формулы (I) по одному из пп. 1-3, в котором атомное отношение [(x+y)/w] больше или равно двум.6. Соединение гидроталькитного типа формулы (I) по одному из пп. 1-3, в котором атомное отношение [(x+y)/w] меньше или равно трем.7. Соединение гидроталькитного типа, соответствующее одной из следующих формул:[CuZnAl(OH)](CO )k HO,[CuZnAl(OH)](CO )k HO,[CuZnAl(OH)](CO )k HO,[CuZnAl(OH)](CO )k HO.8. Способ синтеза соединения гидроталькитного типа формулы (I) по одному из пп. 1-7, включающий следующие стадии:стадию A, в ходе которой водный раствор, содержащий одновременно нитрат алюминия, нитрат цинка и нитрат меди, получают путем смешивания указанных нитратов в нужном молярном соотношении с водой;стадию B, в ходе которой указанный раствор, полученный на стадии A, смешивают с водным раствором гидрокарбоната натрия, при этом pH поддерживают в интервале от 8 до 10, предпочтительно около 9 с получением осадка;стадию C, в ходе которой указанный осадок, полученный на стадии B, отделяют путем фильтрации, промывают, после чего сушат, получая заданное соединение гидроталькитного типа указанной формулы (I).9. Способ синтеза соединения гидроталькитного типа формулы (I) по п. 8, дополнительно включающий стадию D, в ходе которой указанное соединение гидроталькитного типа формулы (I), приведенной выше, полученное на стадии C, размалывают с получением порошка, состоящего из частиц ука

Claims (12)

1. Соединение гидроталькитного типа формулы (I):
[CuxZnyAlw(OH)2](2x+2y+3w-2)+(A2-)(2x+2y+3w-2)/2, k H2O (I)
где (А2-) означает либо карбонатный анион, либо силикатный анион,
x>0, y>0, w>0, (x+y)=(1-w), 1<[(x+y)/w]<5 и
1/99≤x/y≤1/1.
2. Соединение гидроталькитного типа формулы (I) по п. 1, в котором атомное отношение x/y≤1/2.
3. Соединение гидроталькитного типа формулы (I) по п. 2, в котором атомное отношение x/у≤1/5.
4. Соединение гидроталькитного типа формулы (I) по одному из пп. 1-3, в котором атомное отношение х/у≥1/10.
5. Соединение гидроталькитного типа формулы (I) по одному из пп. 1-3, в котором атомное отношение [(x+y)/w] больше или равно двум.
6. Соединение гидроталькитного типа формулы (I) по одному из пп. 1-3, в котором атомное отношение [(x+y)/w] меньше или равно трем.
7. Соединение гидроталькитного типа, соответствующее одной из следующих формул:
[Cu0,075Zn0,675Al0,25(OH)2]0,25+(CO3 2-)0,125 k H2O,
[Cu0,150Zn0,600Al0,25(OH)2]0,25+(CO3 2-)0,125 k H2O,
[Cu0,066Zn0,600Al0,333(OH)2]0,25+(CO3 2-)0,125 k H2O,
[Cu0,134Zn0,532Al0,333(OH)2]0,31+(CO3 2-)0,155 k H2O.
8. Способ синтеза соединения гидроталькитного типа формулы (I) по одному из пп. 1-7, включающий следующие стадии:
стадию A, в ходе которой водный раствор, содержащий одновременно нитрат алюминия, нитрат цинка и нитрат меди, получают путем смешивания указанных нитратов в нужном молярном соотношении с водой;
стадию B, в ходе которой указанный раствор, полученный на стадии A, смешивают с водным раствором гидрокарбоната натрия, при этом pH поддерживают в интервале от 8 до 10, предпочтительно около 9 с получением осадка;
стадию C, в ходе которой указанный осадок, полученный на стадии B, отделяют путем фильтрации, промывают, после чего сушат, получая заданное соединение гидроталькитного типа указанной формулы (I).
9. Способ синтеза соединения гидроталькитного типа формулы (I) по п. 8, дополнительно включающий стадию D, в ходе которой указанное соединение гидроталькитного типа формулы (I), приведенной выше, полученное на стадии C, размалывают с получением порошка, состоящего из частиц указанного соединения гидроталькитного типа указанной формулы (I).
10. Соединение, отличающееся тем, что оно получено способом, включающим следующие стадии:
стадию F, в ходе которой порошок соединения гидроталькитного типа формулы (I) по одному из.п. 1-7 подвергают обжигу;
стадию G, в ходе которой обожженный порошок, полученный на стадии F, восстанавливают водородом при температуре менее 230°C.
11. Применение соединения, полученного способом по п. 10, в качестве катализатора реакции конверсии водяного газа для получения синтез-газа.
12. Применение соединения, полученного способом по п. 10, в качестве катализатора синтеза метанола.
RU2014126869A 2011-12-02 2012-11-14 Катализатор конверсии водяного газа, функционирующий при средней температуре, и способ его производства RU2014126869A (ru)

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