MY138901A - A reactive distillation alkylation process including in situ catalyst regeneration - Google Patents
A reactive distillation alkylation process including in situ catalyst regenerationInfo
- Publication number
- MY138901A MY138901A MYPI20043492A MY138901A MY 138901 A MY138901 A MY 138901A MY PI20043492 A MYPI20043492 A MY PI20043492A MY 138901 A MY138901 A MY 138901A
- Authority
- MY
- Malaysia
- Prior art keywords
- catalyst
- aromatic
- column
- paraffin
- zone
- Prior art date
Links
- 239000003054 catalyst Substances 0.000 title abstract 7
- 230000008929 regeneration Effects 0.000 title abstract 5
- 238000011069 regeneration method Methods 0.000 title abstract 5
- 238000005804 alkylation reaction Methods 0.000 title abstract 3
- 238000011065 in-situ storage Methods 0.000 title abstract 2
- 238000000066 reactive distillation Methods 0.000 title abstract 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 abstract 6
- 150000004945 aromatic hydrocarbons Chemical class 0.000 abstract 3
- 239000012188 paraffin wax Substances 0.000 abstract 3
- 230000029936 alkylation Effects 0.000 abstract 2
- 239000006227 byproduct Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 238000010992 reflux Methods 0.000 abstract 2
- 150000001336 alkenes Chemical class 0.000 abstract 1
- 150000001491 aromatic compounds Chemical class 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000004821 distillation Methods 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 230000000737 periodic effect Effects 0.000 abstract 1
- 239000011973 solid acid Substances 0.000 abstract 1
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
A UNIFIED PROCESS WHICH COUPLES A UNIQUE IN-SITU CATALYST REGENERATION PROCESS WITH A CONTINUOUS REACTIVE DISTILLATION UNDER PRESSURE FOR THE ALKYLATION OF LIGHT AROMATIC HYDROCARBONS SUCH AS BENZENE WITH C2-C30 OLEFINS USING A SOLID ACID ALKYLATION CATALYST SUPPORTED IN THE REFLUX ZONE (21) OF A DISTILLATION COLUMN (SECTION A). PERIODIC REGENERATION OF THE CATALYST (SECTION E, F AND G) IS CARRIED OUT WITH A COUNTERCURRENT INJECTION OF A C4-C16 PARAFFIN (35) BELOW THE BENZENE RECTIFICATION ZONE AT THE TOP OF THE COLUMN, BUT ABOVE THE CATALYST ZONE WHILE THE AROMATIC HYDROCARBON REACTION FEEDSTOCK (17) IS INJECTED CONTINUOUSLY AT A POINT ABOVE A RECTIFICATION ZONE AT THE BASE OF THE COLUMN WHERE THE AROMATIC COMPOUND IS SEPARATED FROM THE PARAFFIN AND BY-PRODUCTS WASHED FROM THE CATALYST. THE USE OF THE C4-C16 PARAFFIN WITH THE AROMATIC AT A MOLE FRACTION IN THE RANGE OF 40 TO 90% ENABLES A REGENERATION TEMPERATURE OF ABOUT 175 - 2500C TO BE ACHIEVED AND MAINTAINED BY ADJUSTING THE COLUMN PRESSURE AND AROMATIC REFLUX RATE. SIGNIFICANTLY LOWER PRESSURES, ON THE ORDER OF 125 TO 370 PSIG, ARE REQUIRED TO ACHIEVE REGENERATION TEMPERATURE THAN WOULD BE OTHERWISE REQUIRED WITH THE USE ONLY OF THE AROMATIC HYDROCARBON TO DILUTE AND WASH THE BY-PRODUCTS FROM THE CATALYST SURFACES.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MYPI20043492 MY138901A (en) | 2004-08-26 | 2004-08-26 | A reactive distillation alkylation process including in situ catalyst regeneration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MYPI20043492 MY138901A (en) | 2004-08-26 | 2004-08-26 | A reactive distillation alkylation process including in situ catalyst regeneration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MY138901A true MY138901A (en) | 2009-08-28 |
Family
ID=45699537
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MYPI20043492 MY138901A (en) | 2004-08-26 | 2004-08-26 | A reactive distillation alkylation process including in situ catalyst regeneration |
Country Status (1)
| Country | Link |
|---|---|
| MY (1) | MY138901A (en) |
-
2004
- 2004-08-26 MY MYPI20043492 patent/MY138901A/en unknown
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