|적용||To produce butadiene from butane or mixed butane/butylenes; isoprene from isopentane or mixed isopentane/isoamylenes; using the Catadiene process.|
|설명||Description: A one-step, fixed bed catalytic process operated on a single-component or mixed feedstock to selectively produce diolefins.
Feed is preheated. then contacted with catalyst in parallel fixed bed reactors (1). Hot reactor effluent is quenched (2), compressed (3), cooled, and cryogenically recovered (4) and stabillized (5). The product goes to extraction (6) for high-purity product recovery. Unconverted paraffins and mono- olefins can be recyled.
A computer controls the reactors being regenerated or onstream. Catalyst is regenerated by heating and coke burn-off during each cycle with preheated air.
The Catadiene catalysts are robust, base metal, cylindrical pellets.
Operating conditions: Normally within the ranges :
Yields: Typical ultimate yield is 60 to 65 wt%.