Catalysts for isomerization of n-butene to isobutene adopt the molecular sieve as active component, which could efficiently convert the n-butene in mixed C4 to isobutene. Yanshan branch, BRICI engages in the research of preparation of isobutene by isomerization of n-butene. The catalysts have been successfully applied many times:
Reaction temperature: ································································· 300~400℃
Reaction pressure:································································· ··0.05~0.2MPa
n-butene WHSV:··········································································2.0~4.0h-1
n-butene conversion:··········································································≥ 40%
Isobutene selectivity:··········································································≥ 90%
Regeneration period:····································································· ≥ 30 days
Catalyst age:················································································ ≥ 2 years
Figure Catalyst for isomerization of n-butene Figure 200kt/a of C4 isomerization unit