Comparative performance of ZSM-5 and activated carbon supports in alcohol conversion over Fe, Zn and Ni based catalysts

摘要

Alcohol transformation to benzene, toluene, ethylbenzene and xylene (BTEX) aromatic compounds over transition metals supported on zeolite (HZSM-5 (50)) and activated carbon (AC) was studied at 400°C and 1 atm. Product distribution and selectivity was compared based on the performance of catalytic supports and metal types. Other than BTEX hydrocarbons, paraffins, indane, naphthalene were also among product. HZSM-5 support performed better in conversion and BTEX production as compared to activated carbon due to presence of Lewis and Bronsted acid sites available in zeolite support. Generally, promotion of HZSM-5 with Zn, Ni and Fe enhanced the production of paraffins and naphthalene, while HZSM-5 alone favoured the production of BTEX. Promotion of AC with Zn, Ni and Fe favoured the production of paraffins and BTEX.