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You searched for: Journal ACS sustainable chemistry Remove constraint Journal: ACS sustainable chemistry Publication Year 2015 Remove constraint Publication Year: 2015 Subject sulfuric acid Remove constraint Subject: sulfuric acid Subject temperature Remove constraint Subject: temperature Text Availability Citation in PubAg Remove constraint Text Availability: Citation in PubAg
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1. Experimental and Kinetic Modeling Studies on the Sulfuric Acid Catalyzed Conversion of d-Fructose to 5-Hydroxymethylfurfural and Levulinic Acid in Water

Author:
Fachri, Boy A.; Abdilla, Ria M.; Bovenkamp, Henk H. van de; Rasrendra, Carolus B.; Heeres, Hero J.
Source:
ACS sustainable chemistry 2015 v.3 no.12 pp. 3024-3034
ISSN:
2168-0485
Subject:
byproducts; catalysts; fructose; glucose; hydroxymethylfurfural; kinetics; levulinic acid; models; sulfuric acid; temperature
Abstract:
... Levulinic acid (LA) and 5-hydroxymethylfurfural (HMF) have been identified as promising biomass-derived platform chemicals. A kinetic study on the conversion of d-fructose to HMF and LA in water using sulfuric acid as the catalyst has been performed in batch setups. The experiments were carried out in a temperature window of 140–180 °C, using sulfuric acid as the catalyst (0.005–1 M) and an initia ...
DOI:
10.1021/acssuschemeng.5b00023

2. Kinetic Modeling of Switchgrass-Derived Xylose Oligomers Degradation during Pretreatment in Dilute Acid or in Water

Author:
Lau, Ching-Shuan; Bunnell, Kris; Carrier, Danielle Julie
Source:
ACS sustainable chemistry 2015 v.3 no.9 pp. 2030-2035
ISSN:
2168-0485
Subject:
Panicum virgatum; enzymatic hydrolysis; fermentation; formic acid; furfural; hemicellulose; manufacturing; models; sulfuric acid; temperature; xylose
Abstract:
... Switchgrass hemicellulose can be converted into sugars, such as xylose, for biobased product manufacturing. However, during pretreatment, the hemicellulose can also be converted into xylose oligomers, furfural and formic acid, which are detrimental to subsequent enzymatic hydrolysis and fermentation. Pretreatment conditions that maximize xylose production from hemicellulose, while also minimizing ...
DOI:
10.1021/acssuschemeng.5b00298

3. Meso/Macroporous Silica from Miscanthus, Cereal Remnant Pellets, and Wheat Straw

Author:
Ahmad Alyosef, Hallah; Schneider, Denise; Wassersleben, Susan; Roggendorf, Hans; Weiß, Michael; Eilert, André; Denecke, Reinhard; Hartmann, Ingo; Enke, Dirk
Source:
ACS sustainable chemistry 2015 v.3 no.9 pp. 2012-2021
ISSN:
2168-0485
Subject:
Miscanthus; X-radiation; X-ray diffraction; adsorption; agricultural wastes; biomass; carbon; combustion; drying; energy crops; fluorescence; furnaces; heat treatment; macropores; mercury; microstructure; nitrogen; organic compounds; pellets; porous media; scanning electron microscopy; silica; sulfuric acid; temperature; thermal analysis; washing; wheat straw
Abstract:
... In the present study, the possibility of extracting biogenic silica from various European biomass materials was investigated. High-purity biogenic silica (>90 wt % SiO₂) was obtained from energy crops (miscanthus), agro wastes (wheat straw), and other crop residues (cereal remnant pellets). Three different morphological forms of biogenic silica materials (ash) were obtained by a thermo-chemical tr ...
DOI:
10.1021/acssuschemeng.5b00275

4. Microwave Assisted Acid Hydrolysis of Brown Seaweed Ascophyllum nodosum for Bioethanol Production and Characterization of Alga Residue

Author:
Yuan, Yuan; Macquarrie, Duncan J.
Source:
ACS sustainable chemistry 2015 v.3 no.7 pp. 1359-1365
ISSN:
2168-0485
Subject:
Ascophyllum nodosum; acid hydrolysis; biochar; bioethanol; biomass; energy; ethanol; ethanol production; feedstocks; fermentation; furfural; galactose; glucose; hydrolysates; macroalgae; mannose; microwave treatment; saccharification; sulfuric acid; temperature
Abstract:
... For the first time, brown seaweed Ascophyllum nodosum was studied as a feedstock for the production of bioethanol. Saccharification was carried out by microwave assisted acid hydrolysis. The optimal condition was 0.4 M H₂SO₄, 3.13% (w/v) of biomass concentration, reaction temperature at 150 °C for 1 min, resulting in 127 mg/g monosaccharides of seaweed being released. The hydrolysates solution was ...
DOI:
10.1021/acssuschemeng.5b00094

5. Recycling Indium from Scraped Glass of Liquid Crystal Display: Process Optimizing and Mechanism Exploring

Author:
Zeng, Xianlai; Wang, Fang; Sun, Xiaofei; Li, Jinhui
Source:
ACS sustainable chemistry 2015 v.3 no.7 pp. 1306-1312
ISSN:
2168-0485
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; energy-dispersive X-ray analysis; environmental protection; glass; indium; industry; leaching; liquid crystal display; raw materials; recycling; scanning electron microscopy; sulfuric acid; sustainable development; temperature; wastes
Abstract:
... With rapid growth in the use of liquid crystal display (LCD) and increasing concerns for environmental protection as well as conservation of scarce metals such as indium, the recycling of indium from waste LCDs is becoming a hot issue for current society. In this study, the leaching process for indium and exploration of its mechanism were carried out with full consideration of potential theory and ...
DOI:
10.1021/acssuschemeng.5b00020

6. Synthesis of Soy-Polyols Using a Continuous Microflow System and Preparation of Soy-based Polyurethane Rigid Foams

Author:
Ji, Dong; Fang, Zheng; He, Wei; Zhang, Kai; Luo, Zhenyang; Wang, Tingwei; Guo, Kai
Source:
ACS sustainable chemistry 2015 v.3 no.6 pp. 1197-1204
ISSN:
2168-0485
Subject:
Fourier transform infrared spectroscopy; compression strength; crosslinking; dimensional stability; foams; gel chromatography; hydroxylation; insulating materials; molecular weight; oligomerization; polyurethanes; raw materials; separators; soybean oil; sulfuric acid; temperature; thermal stability; viscosity
Abstract:
... A soy-polyol labeled Polyol-m was synthesized directly from soybean oil in a continuous microflow system equipped with self-designed oil–water separators and using a reported scheme for epoxidation under following the optimized conditions for hydroxylation: sulfuric acid concentration of 10 wt %, residence time of 13 min, and temperature of 75 °C. Another soy-polyol labeled Polyol-f was also synth ...
DOI:
10.1021/acssuschemeng.5b00170