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Comparative study on thermal cracking characteristics and bio-oil production from different microalgae using Py-GC/MS

Gang LiCollege of Materials and Mechanical Engineering, Beijing Technology and Business University, Beijing 100048, ChinaFang JiChinese Academy of Agricultural Engineering Planning and Design, Beijing 100125, ChinaXue BaiCollege of Materials and Mechanical Engineering, Beijing Technology and Business University, Beijing 100048, ChinaYuguang Zhou. Bioenergy and Environment Science & Technology Laboratory, College of Engineering, China Agricultural University, Beijing 100083, China;Renjie Dong‬1. Key Laboratory of Clean Production and Utilization of Renewable Energy, Ministry of Agriculture, China, Beijing 100083, China; 2. National Center for International Research of BioEnergy Science and Technology, Ministry of Science and Technology, Beijing 100083, China; 3. Yantai Institute, China Agricultural University, Yantai 264670, ChinaZhigang HuangCollege of Materials and Mechanical Engineering, Beijing Technology and Business University, Beijing 100048, China

2019en

ABI

Annotatsiya

The yield and chemical composition of pyrolysis products of Chlorella pyrenoidosa and Schizochytrium limacinum were determined using thermogravimetric analyzer (TGA) and pyrolysis-gas chromatographic mass spectrometry (Py-GC/MS) by varying the temperature ranges. After further analysis of the total ion current (TIC) diagrams of Chlorella pyrenoidosa and Schizochytrium limacinum, it was concluded that both the pyrolysis products of each sample were mainly comprised of hydrocarbons, aromatics, fatty acids, nitrogen compounds, PAHs, phenols, etc, however, the relative content of each compound from Chlorella pyrenoidosa and Schizochytrium limacinum was different. The pyrolysis of Chlorella pyrenoidosa and Schizochytrium limacinum at 350°C produced a maximum yield of bio-oil production (44.32% and 60.99%); moreover, Chlorella pyrenoidosa could lead to more pollutants (nitrogen compounds and PAHs) release (2.71%) compared to that of Schizochytrium limacinum (0.7%). Considering the reasonable bio-oil production and minimum release of pollutants, Schizochytrium limacinum was found to be superior for producing biofuel against Chlorella pyrenoidosa. Keywords: microalgae, Chlorella pyrenoidosa, Schizochytrium limacinum, bio-oil production, thermal cracking, Py-GC-MS DOI: 10.25165/j.ijabe.20191201.3628 Citation: Li G, Ji F, Bai X, Zhou Y G, Dong R J, Huang Z G. Comparative study on thermal cracking characteristics and bio-oil production from different microalgae using Py-GC/MS. Int J Agric & Biol Eng, 2019; 12(1): 208–213.

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Identifikatorlar

DOI: 10.25165/j.ijabe.20191201.3628

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