Catalytic dewaxing process using binder-free catalyst

Details Catalytic dewaxing process using binder-free catalyst Catalytic dewaxing process using binder-free catalyst

1987-08-20

1989-10-10

McFarlane, Anthony

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Cracking

208 18, 208 89, 208120, C10G 4720

Patent

active

048729680

ABSTRACT:
A catalytic dewaxing process in which a waxy hydrocarbon feed is dewaxed over binder-free zeolite dewaxing catalyst. The absence of binder reduces catalyst aging especially when operating at controlled space velocities in the range of 0.25 to 1.5 LHSV. The process is especially useful with lube oil stocks where aging problems are particularly severe, typically highly waxy stocks or stocks containing high levels of nitrogen. Preferred catalysts are the intermediate pore size zeolites such as ZSM-5, ZSM-11 and ZSM-23.

REFERENCES:
patent: 4402867 (1983-09-01), Rodewald
patent: 4430200 (1984-02-01), Shihabi
patent: 4443554 (1984-04-01), Dessau
patent: 4501926 (1985-02-01), La Pierre et al.
patent: 4510045 (1985-04-01), Dessau
patent: 4555495 (1985-11-01), Krishnamurthy
patent: 4582815 (1986-04-01), Bowes
patent: 4668377 (1987-05-01), Chen et al.
patent: 4711710 (1987-12-01), Chen et al.

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