Ethylene glycol dry reforming on Ni/Al2O3 catalyst for syngas generation

Abstract

It is the first time ethylene glycol dry reforming (EGDR) reaction was carried out for syngas production on 10%Ni/Al 2 O 3 catalyst in a tubular fixed-bed reactor at atmospheric condition. Wet-impregnation method was employed for the synthesis of 10%Ni/Al 2 O 3 catalyst. The results of X-ray diffraction measurement revealed the presence of γ-Al 2 O 3 , NiO, NiAl 2 O 4 , Ni 0 and graphitic carbon phases on the surface of spent 10%Ni/Al 2 O 3 catalyst. H 2 temperature-programmed reduction indicates that NiO and NiAl 2 O 4 phases were totally reduced to metallic nickel phase at reduction temperature above 970 K. EGDR activity appeared to be steady with time-on-stream beyond 5-7 h. Catalytic activity was considerably improved with increasing feed ratio of CO 2 :C 2 H 6 O 2 from 1:1 to 2.5:1.