Co-pyrolysis of microwave-assisted acid pretreated bamboo sawdust and soapstock

Yunpu Wang; Qiuhao Wu; Dengle Duan; Yayun Zhang; Roger Ruan; Yuhuan Liu; Guiming Fu; Shumei Zhang; Yunfeng Zhao; Leilei Dai; Liangliang Fan

doi:10.1016/j.biortech.2018.05.095

Co-pyrolysis of microwave-assisted acid pretreated bamboo sawdust and soapstock

Bioresour Technol. 2018 Oct:265:33-38. doi: 10.1016/j.biortech.2018.05.095. Epub 2018 May 30.

Authors

Yunpu Wang¹, Qiuhao Wu², Dengle Duan³, Yayun Zhang⁴, Roger Ruan⁵, Yuhuan Liu⁶, Guiming Fu⁷, Shumei Zhang², Yunfeng Zhao², Leilei Dai², Liangliang Fan²

Affiliations

¹ Nanchang University, State Key Laboratory of Food Science and Technology, Nanchang 330047, China; Nanchang University, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang 330047, China; Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou 510640, China.
² Nanchang University, State Key Laboratory of Food Science and Technology, Nanchang 330047, China; Nanchang University, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang 330047, China.
³ Nanchang University, State Key Laboratory of Food Science and Technology, Nanchang 330047, China; Nanchang University, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang 330047, China; Department of Biological Systems Engineering, Washington State University, 2710 Crimson Way, Richland, WA 99354, USA.
⁴ Department of Biological Systems Engineering, Washington State University, 2710 Crimson Way, Richland, WA 99354, USA.
⁵ Nanchang University, State Key Laboratory of Food Science and Technology, Nanchang 330047, China; Nanchang University, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang 330047, China; Center for Biorefining and Department of Bioproducts and Biosystems Engineering, University of Minnesota, 1390 Eckles Ave., St. Paul, MN 55108, USA.
⁶ Nanchang University, State Key Laboratory of Food Science and Technology, Nanchang 330047, China; Nanchang University, Engineering Research Center for Biomass Conversion, Ministry of Education, Nanchang 330047, China. Electronic address: [email protected].
⁷ Nanchang University, State Key Laboratory of Food Science and Technology, Nanchang 330047, China.

PMID: 29864735
DOI: 10.1016/j.biortech.2018.05.095

Abstract

Fast microwave-assisted co-pyrolysis of pretreated bamboo sawdust and soapstock was conducted. The pretreatment process was carried out under microwave irradiation. The effects of microwave irradiation temperature, irradiation time, and concentration of hydrochloric acid on product distribution from co-pyrolysis and the relative contents of the major components in bio-oil were investigated. A maximum bio-oil yield of 40.00 wt.% was obtained at 200 °C for 60 min with 0.5 M hydrochloric acid. As pretreatment temperature, reaction time and acid concentration increased, respectively, the relative contents of phenols, diesel fraction (C12 + aliphatics), and other oxygenates decreased. The gasoline fraction (including C5-C12 aliphatics and aromatics) ranged from 55.77% to 73.30% under various pretreatment conditions. Therefore, excessive reaction time and concentration of acid are not beneficial to upgrading bio-oil.

Keywords: Bamboo sawdust; Co-pyrolysis; Pretreatment; Soapstock.

MeSH terms

Biofuels*
Hot Temperature
Microwaves*
Phenols
Temperature
Wood*

Substances

Biofuels
Phenols