葛善海; 刘长厚; 范煜; 王连军
GE Shanhai; LIU Changhou; FAN Yu; WANG Lianjun
摘要: The oxidative dehydrogenation of butane to butadiene and butene was studied using a
conventional fixed-bed ractor (FBR), inert membrane reactor (IMR) and mixed inert membrane
reactor (MIMR). When IMR and MIMR were employed, a ceramic membrane modified by partially
coating with glaze was used to distribute oxygen to a fixed-bed of 24-V-Mg-O catalyst. The
oxygen partial pressure in the catalyst bed could be decreased. The effect of feeding modes
and operation conditions were investigated. The selectivity of C4 dehydrogenation products
(butene and butadiene) was found to be higher in IMR than in FBR. The feeding mode with 20%
of air mixing with butane in MIMR was found to be more efficient than the feeding mode with
all air permeating through ceramic membrane. The MIMR gave the most smooth temperature
profile along the bed.