Claims
- 1. A catalytic process for the production of C.sub.5 + gasoline containing alkyl tertiary alkyl ether and a reduced amount of linear 1-alkenes at longer catalyst life comprising:
- contacting a feedstream comprising C.sub.5 + hydrocarbons rich in isoolefins and containing dienes and linear 1-alkenes, an alkanol feedstream and a cofed hydrogen feedstream with a acidic catalyst particles containing zeolite beta and a Group VIIIA metal component in an etherification zone under etherification conditions whereby said isoolefins are converted to said ether, said linear 1-alkenes are converted to higher octane value internal olefins and said dienes are hydrogenated to produce an effluent stream comprising said gasoline at a reduced rate of catalyst deactivation.
- 2. The process of claim 1 wherein said catalyst comprises palladium impregnated zeolite Beta.
- 3. The process of claim 2 wherein said catalyst comprises zirconia-bound palladium zeolite Beta containing about 0.3 weight percent palladium having an alpha value of about 400.
- 4. The process of claim 3 wherein said catalyst was prepared by a process comprising:
- preparing an aqueous extrudate of zeolite Beta, zirconium oxide and zirconium carbonate;
- drying and calcining the extrudate under nitrogen;
- humidifying the extrudate and then immersing the extrudate in water;
- treating the extrudate in water with palladium tetraamine (II) chloride solution;
- drying and calcining the palladium treated extrudate.
- 5. The process of claim 1 in which the alkanol comprises methanol and the alkyl tertiary alkyl ether comprises methyl tertiary amyl ether.
- 6. The process of claim 1 in which the C.sub.5 + hydrocarbon stream comprises an olefinic gasoline from a fluid catalytic cracking process.
Parent Case Info
This is a continuation of pending application Ser. No. 07/896,072, filed on Jun. 2, 1992, abandoned.
US Referenced Citations (12)
Foreign Referenced Citations (2)
Number |
Date |
Country |
0055045 |
Jun 1982 |
EPX |
3813689A1 |
|
DEX |
Non-Patent Literature Citations (1)
Entry |
Kerry, TAME: Technology Merits, Hydrocarbon Processing, May, 1992. |
Continuations (1)
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Number |
Date |
Country |
Parent |
896072 |
Jun 1992 |
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