Ex-situ catalytic upgrading of vapors from fast microwave-assisted co-pyrolysis of Chromolaena odorata and soybean soapstock

Yunpu Wang; Qiuhao Wu; Dengle Duan; Roger Ruan; Yuhuan Liu; Leilei Dai; Yue Zhou; Yunfeng Zhao; Shumei Zhang; Zihong Zeng; Lin Jiang; Zhenting Yu

doi:10.1016/j.biortech.2018.04.042

Ex-situ catalytic upgrading of vapors from fast microwave-assisted co-pyrolysis of Chromolaena odorata and soybean soapstock

Bioresour Technol. 2018 Aug:261:306-312. doi: 10.1016/j.biortech.2018.04.042. Epub 2018 Apr 12.

Authors

Yunpu Wang¹, Qiuhao Wu², Dengle Duan³, Roger Ruan⁴, Yuhuan Liu⁵, Leilei Dai², Yue Zhou², Yunfeng Zhao², Shumei Zhang², Zihong Zeng², Lin Jiang², Zhenting Yu²

Affiliations

¹ State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China.
² State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China.
³ State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China; Department of Biological Systems Engineering, Washington State University, 2710 Crimson Way, Richland, WA 99354, USA.
⁴ State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China; Center for Biorefining and Department of Bioproducts and Biosystems Engineering University of Minnesota, 1390 Eckles Ave., St. Paul, MN 55108, USA.
⁵ State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China; Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China. Electronic address: [email protected].

PMID: 29677658
DOI: 10.1016/j.biortech.2018.04.042

Abstract

Fast microwave-assisted catalytic co-pyrolysis of Chromolaena odorata (C. odorata) and soybean soapstock with HZSM-5 as an ex-situ catalyst was investigated. Effects of catalytic temperature, feedstock: catalyst ratio and C. odorata: soybean soapstock ratio on the yield and composition of the bio-oil were discussed. Results showed that catalytic temperature greatly influenced the bio-oil yield. Co-pyrolysis of C. odorata and soybean soapstock improved the bio-oil yield, and the maximum bio-oil yield of 55.14% was obtained at 250 °C. However, the addition of HZSM-5 decreased bio-oil yield but improved the quality of bio-oil. Moreover, the proportion of oxygen-containing compounds decreased dramatically with the addition of soybean soapstock. The C. odorata: soybean soapstock ratio of 1:2 and feedstock: catalyst ratio of 2:1 were the optimal condition to upgrade the bio-oil. In addition, the resulted biochar contained various essential elements and could be used as soil repair agent.

Keywords: Chromolaena odorata; Ex-situ catalytic co-pyrolysis; HZSM-5; Microwave; Soybean soapstock.

MeSH terms

Biofuels*
Catalysis
Chromolaena*
Glycine max*
Microwaves*

Substances

Biofuels