Browsing A - Mathematics and Natural Sciences by Author "Marshall, Marc"
Now showing items 1-11 of 11
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Characterisation of the products of low temperature pyrolysis of Victorian brown coal in a semi-continuous/flow through system
Qi, Ying; Han, Will; Subagyono, RR Dirgarini; Fei, Yi; Marshall, Marc; Jackson, W. Roy; Patti, Antonio F.; Chaffee, Alan L. (Elsevier BV, 2018-07-24)Two Victorian brown coal samples, a run-of-mine Loy Yang coal (LY) and a Loy Yang light lithotype (LL), were subjected to pyrolysis at 420–460 °C and 330–460 °C, respectively, under a continuous nitrogen flow. The process ... -
CO2 adsorption by amine modified siliceous mesostructured cellular foam (MCF) in humidified gas
Subagyono, RR Dirgarini; Marshall, Marc; Knowles, Gregory P.; Chaffee, Alan L. (Elsevier, 2013-11-27)A set of branched and linear polyethyleneimine (PEI) modified mesocellular siliceous foams (MCF) were evaluated as adsorbents for CO2 capture at modestly elevated temperatures under conditions that simulate the vacuum swing ... -
Improvement in liquid fuel product quality from reactions of grape marc with CO/H2O
Subagyono, RR Dirgarini; Marshall, Marc; Jackson, W. Roy; Chaffee, Alan L. (Elsevier BV, 2015-06-19)Reactions of grape marc with CO/H2O have been investigated over a range of temperatures (320–425 C) with and without added sodium carbonate (Na2CO3) or sodium aluminate (NaAlO2) with a view to optimising liquid fuel quality. ... -
Pressurized thermal and hydrothermal decomposition of algae, wood chip residue, and grape marc: A comparative study
Subagyono, RR Dirgarini; Marshall, Marc; Jackson, W. Roy; Chaffee, Alan L. (Elsevier Ltd., 2014-08-22)Pressurized thermal decomposition of two marine algae, Pinus radiata chip residue and grape marc using high temperature, high pressure reactions has been studied. The yields and composition of the products obtained from ... -
Pyrolysis of fast growing wood Macaranga gigantea: Product characterisation and kinetic study
Subagyono, RR Dirgarini; Miten, Polonius Dosi; Sinaga, Ruth Junita; Wijayanti, Ardiana; Qi, Ying; Marshall, Marc; Sanjaya, Ari Susandy; Chaffee, Alan L. (Elsevier BV, 2022-01-17)Fast-growing wood Macaranga gigantea has been pyrolyzed and its pyrolysis products have been characterized and their formation kinetics studied. Pyrolysis of M. gigantea wood was carried out by varying the temperature and ... -
Pyrolysis of Green Microalgae by Thermogravimetric Analysis (TGA) and TG-FTIR
Subagyono, RR Dirgarini J N; Miten, Polonius; Gunawan, Rahmat; Nugroho, Rudy; Chaffee, Alan; Marshall, Marc (AIP Publishing, 2022-10-11) -
Pyrolysis-Gc/Ms Analysis of Fast Growing Wood Macaranga Species
Subagyono, RR Dirgarini; Qi, Ying; Chaffee, Alan L.; Amirta, Rudianto; Marshall, Marc (Universitas Pendidikan Indonesia, 2021-02-04)Py-GC/MS analysis of six different species of fast growing Macaranga wood has been studied. Flash pyrolysis was conducted at different temperatures (250-850 oC) under a flow of helium followed by GC/MS analysis of the ... -
Reactions with CO/H2O of Two Marine Algae and Comparison with Reactions under H2 and N2
Subagyono, RR Dirgarini; Marshall, Marc; Jackson, W. Roy; Chow, Meechin; Chaffee, Alan L. (American Chemical Society, 2014-04-21)The reactions of a strain of marine alga Chlorococcum sp. and of a polystrain containing a mixture of marine algae with CO/H2O have been studied. The yields and chemical composition of the products obtained from the reactions ... -
Thermo-chemical reactions of algae, grape marc and wood chips using a semi-continuous/flow-through system
Subagyono, RR Dirgarini; Marshall, Marc; Fei, Yi; Jackson, W. Roy; Chaffee, Alan L. (Elsevier BV, 2015-06-16)Chlorococcum sp., grape marc, and Pinus radiata have been reacted in a semi-continuous (flow through) system at 425 C under a flow of N2 or H2 and results compared to those from batch autoclave experiments. This paper ... -
Thermochemical Reactions of Blue Gum and Fossil Wood with CO/ H2O: Some Mechanistic Comments
Subagyono, RR Dirgarini; Marshall, Marc; Jackson, W. Roy; Fei, Yi; Chaffee, Alan L. (American Chemical Society, 2015-12-04)Our previous work suggested that liquid product yields from wood, unlike those from other biomass types, were not increased by CO/H2O reaction. Reactions of blue gum (BG) and fossil wood (FW) using high-temperature, ... -
Upgrading Microalgal Biocrude Using NiMo/Al-SBA-15 as a Catalyst
Subagyono, RR Dirgarini; Marshall, Marc; Jackson, W. Roy; Auxilio, Anthony R.; Fei, Yi; Chaffee, Alan L. (American Chemical Society, 2020-04-03)Biocrude from Chlorococcum sp. algae was hydrotreated in batch autoclaves in the presence and absence of Al-SBA-15 supports and NiMo/Al-SBA-15 catalysts with different Si/Al ratios and hence different acidities. Reaction ...