Fast microwave assisted catalytic co pyrolysis of corn stover and scum for bio oil production with CaO and HZSM 5 as the catalyst.
This study investigated fast microwave assisted catalytic co pyrolysis of corn stover and scum for bio oil production with CaO and HZSM 5 as the catalyst. Effects of reaction temperature, CaO/HZSM 5 ratio, and corn stover/scum ratio on co pyrolysis product fractional yields and selectivity were investigated. Results showed that co pyrolysis temperature was selected as 550degC, which provides the maximum bio oil and aromatic yields. Mixed CaO and HZSM 5 catalyst with the weight ratio of 1:4 increased the aromatic yield to 35.77 wt. of feedstock, which was 17% higher than that with HZSM 5 alone. Scum as the hydrogen donor, had a significant synergistic effect with corn stover to promote the production of bio oil and aromatic hydrocarbons when the H/C(eff) value exceeded 1. The maximum yield of aromatic hydrocarbons (29.3 wt. were obtained when the optimal corn stover to scum ratio was 1:2.
Bioresource technology