Brochure
- Dehydrogenation - The STAR process®
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The STAR process® (Steam Active Reforming) is a commercially established techno logy for the production of propylene and isobutylene.
The technology is used to dehydrogenate lower paraffins (propane or butanes) into their corres ponding olefins (propylene or butylenes), which can be further processed to valuable downstream products (see possible applications below).
Isobutane Dehydrogenation Applications
Main Advantages
Low maintenance fixed bed reactor type
No moving catalyst
No hot switching valves
Simple and robust operation
High availability and reliability
Independent parallel reactor trains
Wide operational window makes trips less likely
Shortest start-up and overall shut-down time in the unlikely event of a reactor trip
Shorter re-start from “hot stand-by”
Demonstrated plant availability of 98%
Catalyst
STAR catalyst® – high yield and long lifetime: The STAR catalyst® consists of a platinum promoted basic calcium and zinc aluminate which is very stable in the presence of steam at high temperatures. It shows high selectivity at near equilibrium conversion. Regeneration is simple and sustainable by simply using air to burn off coke deposits and to re-oxidize the precious metal. No chemicals are required for catalyst activation or coke suppression. Before delivery to site thyssenkrupp Uhde will qualify the performance of the catalyst in its test facilities. In order to continuously improve the performance of the STAR process® plants thyssenkrupp Uhde has established a continuous catalyst development program together with its production partner.