title: Co-pyrolysis mechanism of seaweed polysaccharides and cellulose based on macroscopic experiments and molecular simulations.
abstract: Co-pyrolysis conversion of seaweed (Enteromorpha clathrat and Sargassum fusiforme) polysaccharides and cellulose has been investigated. From the Py-GC/MS results, Enteromorpha clathrata (EN) polysaccharides pyrolysis mainly forms furans; while the products of Sargassum fusiforme (SA) polysaccharides pyrolysis are mainly acid esters. The formation mechanisms of H2O, CO2, and SO2during the pyrolysis of seaweed polysaccharides were analyzed using the thermogravimetric-mass spectrometry. Meanwhile the pyrolysis of seaweed polysaccharide based on the Amber and the ReaxFF force fields, has also been proposed and simulated respectively. The simulation results coincided with the experimental results. During the fast pyrolysis, strong synergistic effects among cellulose and seaweed polysaccharide molecules have been simulated. By comparing the experimental and simulation value, it has been found that co-pyrolysis could increase the number of molecular fragments, increase the pyrolysis conversion rate, and increase gas production rate at the middle temperature range.
authors.affiliation: School of Energy and Power Engineering, Jiangsu University, Jiangsu 212013, China.
authors.forename: Shuang
authors.initials: S
authors.lastname: Wang
authors.affiliation: School of Energy and Power Engineering, Jiangsu University, Jiangsu 212013, China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Xia
authors.affiliation: School of Energy and Power Engineering, Jiangsu University, Jiangsu 212013, China.
authors.forename: Yamin
authors.initials: Y
authors.lastname: Hu
authors.affiliation: School of Energy and Power Engineering, Jiangsu University, Jiangsu 212013, China.
authors.forename: Zhixia
authors.initials: Z
authors.lastname: He
authors.affiliation: Department of Agricultural and Bioresources Engineering, University of Nigeria, Nsukka, Nigeria.
authors.forename: Benjamin Bernard
authors.initials: BB
authors.lastname: Uzoejinwa
authors.affiliation: School of Energy and Power Engineering, Jiangsu University, Jiangsu 212013, China. Electronic address: qwang@ujs.edu.cn.
authors.forename: Qian
authors.initials: Q
authors.lastname: Wang
authors.affiliation: School of Energy and Power Engineering, Jiangsu University, Jiangsu 212013, China.
authors.forename: Bin
authors.initials: B
authors.lastname: Cao
authors.affiliation: Key Laboratory of South China Sea Fishery Resources Exploitation & Utilization, Ministry of Agriculture, South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China.
authors.forename: Shanna
authors.initials: S
authors.lastname: Xu
mesh_terms: D001709:Biotechnology / Q000379:methods*; D002482:Cellulose / Q000737:chemistry*; D003198:Computer Simulation; D008401:Gas Chromatography-Mass Spectrometry; D005740:Gases / Q000032:analysis; D008958:Models, Molecular; D044647:Sargassum / Q000737:chemistry; D012624:Seaweed / Q000737:chemistry*; D013696:Temperature; D013818:Thermogravimetry
chemical_list: D005740:Gases; D002482:Cellulose
keywords: Biomass; Co-pyrolysis; Molecular dynamic simulation; Synergistic reaction