SU278643A1 - CATALYST FOR OXIDATIVE DEHYDROGENATION - Google Patents
CATALYST FOR OXIDATIVE DEHYDROGENATIONInfo
- Publication number
- SU278643A1 SU278643A1 SU1342628A SU1342628A SU278643A1 SU 278643 A1 SU278643 A1 SU 278643A1 SU 1342628 A SU1342628 A SU 1342628A SU 1342628 A SU1342628 A SU 1342628A SU 278643 A1 SU278643 A1 SU 278643A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- catalyst
- oxidative dehydrogenation
- selectivity
- catalysts
- phosphoric acid
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 title description 16
- 238000005839 oxidative dehydrogenation reaction Methods 0.000 title description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 10
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 5
- 239000000969 carrier Substances 0.000 description 4
- RRHGJUQNOFWUDK-UHFFFAOYSA-N isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 229910052684 Cerium Inorganic materials 0.000 description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N manganese Chemical class [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- BKOOMYPCSUNDGP-UHFFFAOYSA-N 2-Methyl-2-butene Chemical compound CC=C(C)C BKOOMYPCSUNDGP-UHFFFAOYSA-N 0.000 description 1
- YHQXBTXEYZIYOV-UHFFFAOYSA-N 3-methylbut-1-ene Chemical compound CC(C)C=C YHQXBTXEYZIYOV-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N AI2O3 Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 150000000703 Cerium Chemical class 0.000 description 1
- UAJUXJSXCLUTNU-UHFFFAOYSA-N Pranlukast Chemical compound C=1C=C(OCCCCC=2C=CC=CC=2)C=CC=1C(=O)NC(C=1)=CC=C(C(C=2)=O)C=1OC=2C=1N=NNN=1 UAJUXJSXCLUTNU-UHFFFAOYSA-N 0.000 description 1
- -1 bismuth-molybdenum Chemical compound 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002696 manganese Chemical class 0.000 description 1
- 230000001590 oxidative Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- QMMOXUPEWRXHJS-UHFFFAOYSA-N pent-2-ene Chemical class CCC=CC QMMOXUPEWRXHJS-UHFFFAOYSA-N 0.000 description 1
- 229960004583 pranlukast Drugs 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Description
Изобретение относитс к области производства катализаторов дл процесса окислительного дегидрировани нзоамиленов.This invention relates to the manufacture of catalysts for the oxidative dehydrogenation process of nzoamylenes.
Известен фосфорнокислотный катализатор дл процесса окислительного дегидрировани , содержащий в качестве носител окись алюмини .A phosphoric acid catalyst for the oxidative dehydrogenation process, containing alumina as carrier, is known.
Дл повышени селективности катализатора и удешевлени его производства предложен способ, предусматривающий использование в качестве носител природного материала-саратовской опоки, промотированной небольшими добавками солей марганца или цери .In order to increase the selectivity of the catalyst and reduce the cost of its production, a method has been proposed that uses natural material — a Saratov flask — promoted with small additions of manganese salts or cerium as a carrier.
Катализатор готов т прониткой. Химический состав саратовской опоки следующий, вес. %:The catalyst is prepared by permeation. The chemical composition of the Saratov flask is the following, wt. %:
РеЮз2,0RES2,0
АЬОз5,0ABO3.0
MgO1,95MgO1.95
СаО0,5CaO0,5
SiOa86,2SiOa86,2
Пример. Образцы катализаторов содержат , вес. %:Example. Samples of catalysts contain, weight. %:
1- 0,23 Мп и 4,5 РгОз на опоке1- 0,23 Mp and 4,5 PrgOz on the flask
2- 0,23 Мп и 14,5 Р2О5 на оноке2- 0.23 Mp and 14.5 P2O5 onon
Активность катализаторов испытывают на лабораторной нмпульспой и проточной установке . При этом в импульсной установке (загрузка катализатора 0,5 г, объем подаваемойThe activity of the catalysts is tested on a laboratory pulp and flow installation. At the same time, in the impulse installation (catalyst loading 0.5 g, volume supplied
пробы 0,5 см, скорость газа-носител 30 смз/мин) па катализаторе 1; выход изопрена, в расчете на пропущенный изоцентен, в интервале температур 400 - 550°С измен етс от 35 до 70%, а дол изопентена, превращепного в углекислый газ, составл ет 0,3-2%; селективносгь реакции окислительного дегидрировани достигает 97,4-99 вес. %. В табл. 1 приведены данные, полученные при окислительном дегидрировании изоиептеновsamples of 0.5 cm, the speed of the carrier gas 30 cm / min) on the catalyst 1; the yield of isoprene, in terms of the missed isocenter, in the temperature range 400-550 ° C varies from 35 to 70%, and the proportion of isopentene, convertible to carbon dioxide, is 0.3-2%; Selectivity of the oxidative dehydrogenation reaction reaches 97.4-99 weight. % In tab. 1 shows the data obtained in the oxidative dehydrogenation of isoieptenes
на фосфорнокислотиом и висмут-молибденовом катализаторах в импульсной системе В апалогичпых услови х.on phosphoric acid and bismuth-molybdenum catalysts in a pulsed system. Under apalogichnyh conditions.
Т а б .4 и ц а 1T a b .4 and c a 1
2020
2525
Таблица 2table 2
Проведено сопоставление активности и селективности приготовленных катализаторов и промышленного образца катализатора К-16 при конверсии 2-метилбутена-2 с воздухом в проточной установке при 550°С и скорости подачи амиленов 1400 (в парах) или 7 час-1 (по жидкости и мол рном соотношении СдНю : Оа 1:1.A comparison was made of the activity and selectivity of the prepared catalysts and the industrial sample of the K-16 catalyst with the conversion of 2-methylbutene-2 with air in a flow-through installation at 550 ° С and amylen feed rates of 1400 (in vapors) or 7 h-1 SdNu ratio: Oa 1: 1.
Как видно из табл. 2, наибольшей селективностью обладают фосфорнокислотные катализаторы , промотированные сол ми марганца или цери . По селективности фосфорнокислотные катализаторы превосход т промышленный образец К-16 более чем на 30%.As can be seen from the table. 2, phosphoric acid catalysts promoted with salts of manganese or cerium have the highest selectivity. In terms of selectivity, phosphoric acid catalysts are superior to industrial design K-16 by more than 30%.
При температуре 560 - 575°С и скорости подачи метилбутенов 2,0 (по жидким изоамиленам ) и том же соотношении с кислородом выход изопрена, в расчете на пропущенное сырье, составл ет 37 - 38% при селективности 85 вес.%.At a temperature of 560–575 ° C and a feed rate of methyl butenes 2.0 (for liquid isoamylenes) and the same ratio with oxygen, the yield of isoprene, based on the missing feed, is 37–38% with a selectivity of 85% by weight.
Предмет изобретени Subject invention
Катализатор дл окислительного дегидрироваии изоамиленов, содержащий фосфорную кислоту на носителе, отличающийс тем, что, с целью повышени селективности катализатора , в качестве носител вз т природный материал-саратовска опока, промотированный добавками солей марганца или цери .Catalyst for oxidative dehydration of isoamylenes containing phosphoric acid on a carrier, characterized in that, in order to increase the selectivity of the catalyst, natural material is used as a carrier in Saratovka, promoted by additions of manganese or cerium salts.
Publications (1)
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SU278643A1 true SU278643A1 (en) |
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