1Department of Chemical Engineering, Bandung Institute of Technology, Bandung, Indonesia
2Department of Chemical Engineering, Lampung University, Lampung, Indonesia
3North Japan Research Institute for Sustainable, Hirosaki University, Aomori, Japan
BibTex Citation Data :
@article{IJRED42595, author = {Heri Rustamaji and Tirto Prakoso and Jenny Rizkiana and Hary Devianto and Pramujo Widiatmoko and Guoqing Guan}, title = {Synthesis and Characterization of Hydrochar and Bio-oil from Hydrothermal Carbonization of Sargassum sp. using Choline Chloride (ChCl) Catalyst}, journal = {International Journal of Renewable Energy Development}, volume = {11}, number = {2}, year = {2022}, keywords = {Sargassum sp.; Hydrothermal carbonization; Hydrochar; Bio-oil; Alkane}, abstract = { The purpose of t his study is to alter the biomass of Sargassum sp . into elective fills and high valuable biomaterials in a hydrothermal process at 200 o C for 90 minutes , using ZnCl 2 and CaCl 2 activating agents, with ChCl as a catalyst. Th is method generated three primar y outputs : hydrochar, bio-oil, and gas products. ChCl to water ratio varies from 1:3, 1:1, and 3:1. The hydrochar yield improved when the catalyst ratio was increased, but the bio-oil and gas yield declined. The highest hydrochar yields were 76.95, 63.25, and 44.16 percent in ZnCl 2 , CaCl 2 , and no activating agent samples, respectively. The porosity analysis observed mesopore structures with the most pore diameters between 3.9-5.2 nm with a surface area between 44.71-55.2. The attribute of interaction between activator and catalyst plays a role in pore formation. T he hydrochar pro ducts with CaCl 2 showed the best thermal stability. From the whole experiment, the optimum hydrochar yield (76.95%), optimum surface area (55.42 m 2 g -1 ), and the increase in carbon content from 21.11 to 37.8% were achieved at the ratio of ChCl to water was three, and the activating agent of ZnCl 2 . T he predominant bio-oil components were hexadecane, hexadecanoic, and 9-octadecenoic acids, with a composition of 51.65, 21.44, and 9.87%, respectively the remaining contained aromatic alkanes and other fatty acids . The findings of this study reported that adding activating agents and catalysts improve hydrochar yield and characteristics of hydrochar and bio-oil products, suggesting the potential of hydrochar as a solid fuel or biomaterial and bio-oil as liquid biofuel }, pages = {403--412} doi = {10.14710/ijred.2022.42595}, url = {https://ejournal.undip.ac.id/index.php/ijred/article/view/42595} }
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