Enhancing the production of light olefins and aromatics from catalytic fast pyrolysis of cellulose in a dual-catalyst fixed bed reactor. (February 2019)

• Record Type: Journal Article
• Authors: Yang, Mingfa; Shao, Jingai; Yang, Haiping; Zeng, Kuo; Wu, Zhengshun; Chen, Yingquan; Bai, Xiaowei; Chen, Hanping
• Is Part Of: Bioresource technology. Volume 273(2019)
• Page Start: 77
• Page End: 85
• Publication Date: 2019-02
• Subjects: Light olefins -- Aromatics -- Catalytic pyrolysis -- Cellulose; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2018.11.005
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: Total yield of light olefins and aromatics follows ZSM-5 > MCM-41 > CaO > SAPO-34. Fractional catalytic pyrolysis of CaO or MCM-41 with ZSM-5 or SAPO-34 was proposed. Maximum yield of light olefins and aromatic is obtained at 15% CaO with 85% ZSM-5. C2 H4 and monocyclic aromatic increased in the addition of CaO and MCM-41. Abstract: In this study, the effects of a macroporous catalyst (CaO), mesoporous catalyst (MCM-41), and microporous catalysts (ZSM-5 and SAPO-34) on the production of light olefins and aromatics from cellulose catalytic fast pyrolysis were investigated in a dual-catalyst fixed bed reactor. Further the fractional catalytic pyrolysis of MCM-41 or CaO with ZSM-5 or SAPO-34 was explored. The results showed that ZSM-5 was the most efficient catalyst for the formation of light olefins and aromatics followed by MCM-41, CaO and SAPO-34, and no aromatics were found with SAPO-34 only. Moreover, 15% CaO combined 85% ZSM-5 produced the highest yield of light olefins (5.59%) and aromatic (13.42%). The addition of CaO and MCM-41 promoted the selectivity of C2 H4 and decreased the production of naphthalene.