IT1161559B - Propylene prepn from 4-12c olefin(s) - Google Patents
Propylene prepn from 4-12c olefin(s)Info
- Publication number
- IT1161559B IT1161559B IT19292/83A IT1929283A IT1161559B IT 1161559 B IT1161559 B IT 1161559B IT 19292/83 A IT19292/83 A IT 19292/83A IT 1929283 A IT1929283 A IT 1929283A IT 1161559 B IT1161559 B IT 1161559B
- Authority
- IT
- Italy
- Prior art keywords
- olefins
- propylene
- mixt
- zeolite
- condensn
- Prior art date
Links
- 150000001336 alkenes Chemical class 0.000 title abstract 6
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 title abstract 4
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 title abstract 4
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 title 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 abstract 4
- 229910021536 Zeolite Inorganic materials 0.000 abstract 3
- 239000010457 zeolite Substances 0.000 abstract 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- 229910052681 coesite Inorganic materials 0.000 abstract 2
- 229910052593 corundum Inorganic materials 0.000 abstract 2
- 229910052906 cristobalite Inorganic materials 0.000 abstract 2
- 229930195733 hydrocarbon Natural products 0.000 abstract 2
- 150000002430 hydrocarbons Chemical class 0.000 abstract 2
- 239000000377 silicon dioxide Substances 0.000 abstract 2
- 235000012239 silicon dioxide Nutrition 0.000 abstract 2
- 229910052682 stishovite Inorganic materials 0.000 abstract 2
- 229910052905 tridymite Inorganic materials 0.000 abstract 2
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 1
- 230000004913 activation Effects 0.000 abstract 1
- 229910000323 aluminium silicate Inorganic materials 0.000 abstract 1
- 125000004429 atom Chemical group 0.000 abstract 1
- 239000011230 binding agent Substances 0.000 abstract 1
- 125000004432 carbon atom Chemical group C* 0.000 abstract 1
- 239000003054 catalyst Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
- 230000008929 regeneration Effects 0.000 abstract 1
- 238000011069 regeneration method Methods 0.000 abstract 1
- 229910052725 zinc Inorganic materials 0.000 abstract 1
Landscapes
- Catalysts (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
4-12 (5-8)C olefins are converted to propylene by contact with a crystalline zeolitic alumino-silicate having SiO2/Al2O3 ratio (Z) not more than 300, e.g. a ZSM 5 or ZSM 11 zeolite, at space velocity higher than 50 (pref. 60-250) kg/hr. olefins per kg. zeolite, at 400-600 deg. C. The zeolite is pref. used in acid form or modified with Mg, Ca, Sr, Ba, P, Cr, Cu or Zn has average crystallite size below 0.5 micro m., and Z=25-220; it may be admixed with SiO2 or Al2O3 as binder. Activation with air at 450-750 deg. C, and periodic regeneration with air at 400-600 deg. C is appropriate. A mixt. of 4C olefins and paraffins that is not readily separable may be treated by the following steps; by contact with a zeolitic catalyst at 320-380 deg. C the 4C olefins in the mixt. are oligomerised at 5-8C olefins. These are sepd. by condensn. from the 4C paraffins, and converted by the present process to a mixt. contg. propylene. Hydrocarbons contg. 4 or more C atoms are then sepd. by condensn. from the propylene and other hydrocarbons of less than 4C atoms.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT19292/83A IT1161559B (en) | 1983-01-27 | 1983-01-27 | Propylene prepn from 4-12c olefin(s) |
| DE8383111240T DE3372474D1 (en) | 1982-11-10 | 1983-11-10 | Process for converting olefins having 4 to 12 carbon atoms into propylene |
| EP83111240A EP0109059B1 (en) | 1982-11-10 | 1983-11-10 | Process for converting olefins having 4 to 12 carbon atoms into propylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT19292/83A IT1161559B (en) | 1983-01-27 | 1983-01-27 | Propylene prepn from 4-12c olefin(s) |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IT8319292A0 IT8319292A0 (en) | 1983-01-27 |
| IT1161559B true IT1161559B (en) | 1987-03-18 |
Family
ID=11156476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT19292/83A IT1161559B (en) | 1982-11-10 | 1983-01-27 | Propylene prepn from 4-12c olefin(s) |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT1161559B (en) |
-
1983
- 1983-01-27 IT IT19292/83A patent/IT1161559B/en active
Also Published As
| Publication number | Publication date |
|---|---|
| IT8319292A0 (en) | 1983-01-27 |
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