Process variable optimization on hydrogen production from sawdust mill of Paraserianthes falcataria wood with one stage gasification process using promoted calcium hydroxide absorption

Retno Ambarwati, Sigit Lestari and Supriyono, .supriyono and Jose Antonio, Teixira and Mega, Kasmiyatun and Ery fatarima, Purwaningtyas and Ahmad, Sohib and Theodora Maria, Brito da Silva (2024) Process variable optimization on hydrogen production from sawdust mill of Paraserianthes falcataria wood with one stage gasification process using promoted calcium hydroxide absorption. Biomass Conversion and Biorefinery, 14 (2). pp. 1-10. ISSN 2190-6823;2190-6815

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Abstract

Production of hydrogen from biomass waste using single-stage gasification is an innovative method, in which gasification, water gas shift conversion and CO2 separation processes are carried out in one reactor so that the product gas leaving the reactor has a partially large composition is hydrogen gas. This process presents several advantages when compared to the conventional method, where hydrogen formation is carried out through several stages that occur in more than one reactor, making it more complicated and economically unprofitable. In addition an innovative method on how to make the absorption of CO2 gas more effective by adding PEG surfactant to the absorbent solution as a promoter is presented. The biomass used in this research is sawdust wood. The composition of H2 as well the corresponding yield were optimized under constant operating conditions, namely gasification temperature 400oC and holding time 15 min for surfactant concentration (800–1500 ppm) and the ratio of absorbent solution/biomass weight (1.5–2.0 ml/g). A central composite design (CCD) model utilizing Statistica 6 software was applied. The optimization results show the optimum ratio of absorbent solution/biomass is 1.786 ± 0.004 while for the surfactant concentration, the results were obtained for 1200 ppm (for H2 composition) and 1250 ppm (for yield). At the optimum conditions H2 content was 30.82% and the yield was 2.937 mmol H2/g of biomass. The surfactant concentration variable has a greater effect than the ratio variable from the % H2 side, while from the yield side the effect is not significantly different.

Item Type:	Article
Subjects:	T Technology > TP Chemical technology
Depositing User:	supriyono .
Date Deposited:	24 Sep 2024 03:42
Last Modified:	24 Sep 2024 03:42
URI:	http://repo.setiabudi.ac.id/id/eprint/6321

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