Peparation of i-C₄ to i-C₄^2- catalyst

Introduction:

The product relates to the dehydrogenation of isobutene to isobutylene, which is subsequently used in MTBE production via scheme 1. 

Scheme 1

The catalyst will be selected from a group, which has been found to provide a high selectivity to isobutylene, with minimum structural isomerization to the normal butenes.

Approach:

The work was performed as a research project for NPC in RIPI.

Accomplishments:

•  Bench scale preparation of the catalyst

•  Bench scale test run of the catalyst

Advantages:

The catalyst comprises platinum plus at least one metal of the group IVa from periodic table on a non-acidic support, such as alumina. This catalyst successfully satisfies three requirements, namely high activity, high selectivity and good stability. Stability is a measure of the rate of change with time on stream of activity and selectivity- the smaller rate implying the more stable catalysts (see Fig.1)
 

  Yield, %    Time, hr
Fig2. Yield of the Product: