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You searched for: Journal Energy & Fuels Remove constraint Journal: Energy & Fuels Subject biomass Remove constraint Subject: biomass Subject acetic acid Remove constraint Subject: acetic acid Text availability Citation in PubAg Remove constraint Text availability: Citation in PubAg Text Availability Citation in PubAg Remove constraint Text Availability: Citation in PubAg
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1. Acetic Acid and Sodium Hydroxide-Aided Hydrothermal Carbonization of Woody Biomass for Enhanced Pelletization and Fuel Properties

Author:
Wang Tengfei; Zhai Yunbo; Zhu Yun; Peng Chuan; Xu Bibo; Wang Tao; Li Caiting; Zeng Guangming
Source:
Energy & Fuels 2017 v.31 no.11 pp. 12200-12208
ISSN:
1520-5029
Subject:
Fourier transform infrared spectroscopy; acetic acid; biofuels; biomass; combustion; energy; hydrochars; hydrogen; hydrothermal carbonization; oxygen; pH; pelleting; sodium hydroxide; temperature; tensile strength; water content; weight loss
Abstract:
... Hydrothermal carbonization (HTC) at 200 and 250 °C was combined with acetic acid and NaOH (changing feedwater pH from 2 to 12) to treat woody biomass for enhancing its pelletization and fuel properties. The treated biomass (hydrochar) was characterized by composition analysis and Fourier transform infrared spectroscopy, after which the energy consumption of pelletization; tensile strength; fuel pr ...
DOI:
10.1021/acs.energyfuels.7b01881

2. Effect of Multiple Inhibitions in Corncob Hydrolysate on the Lipid Production by Rhodotorula glutinis

Author:
Lin Zhangnan; Zhou Yujie; Wu Jing; Liu Hongjuan; Zhang Jianan
Source:
Energy & Fuels 2017 v.31 no.11 pp. 12247-12255
ISSN:
1520-5029
Subject:
Rhodotorula glutinis; acetic acid; biomass; byproducts; cell growth; corn cobs; fuels; furfural; hydrolysates; hydroxymethylfurfural; lignocellulose; lipid content; lipids; microorganisms; models; prediction; response surface methodology; toxicity
Abstract:
... Lignocellulosic biomass degradation byproducts generated in the pretreatment process have various negative impacts on microbes. This work investigated the effects of multiple inhibitors, such as acetic acid, furfural, and 5-hydroxymethylfurfural (HMF), on cell growth and lipid production by Rhodotorula glutinis. Single-factor experiments were performed to study the individual inhibitory actions. A ...
DOI:
10.1021/acs.energyfuels.7b02159

3. One-Pot Conversion of Carbohydrates in Biomass to Isobutyroin-Rich Branched Oxygenates: Carbohydrate Depolymerization and Methyl Introduction in Supercritical Methanol

Author:
Huang Yong; Qiu Shi; Guo Xuan; Lin Shenghua; Fang Yunming
Source:
Energy & Fuels 2017 v.31 no.1 pp. 688-692
ISSN:
1520-5029
Subject:
acetic acid; biomass; carbohydrates; catalysts; cations; depolymerization; feedstocks; gasoline; isotope labeling; methanol; potassium; sodium; temperature
Abstract:
... This study proposes a one-pot conversion of carbohydrates in biomass to branched oxygenates in methanol, employing noble metal and alkali cation as catalysts. The main product, isobutyroin, is highly concentrated when the reaction temperature and consequent pressure reach the supercritical point of methanol. The type of alkali cation and ratio of feedstock/alkali also significantly influence the p ...
DOI:
10.1021/acs.energyfuels.6b03285

4. Pyrolysis Two-Dimensional GC-MS of Miscanthus Biomass: Quantitative Measurement Using an Internal Standard Method

Author:
Groenewold Gary S.; Johnson Kristyn M.; Fox S. Carter; Rae Cathy; Zarzana Christopher A.; Kersten Bethany R.; Rowe Salene M.; Westover Tyler L.; Gresham Garold L.; Emerson Rachel M.; Hoover Amber N.
Source:
Energy & Fuels 2017 v.31 no.2 pp. 1620-1630
ISSN:
1520-5029
Subject:
Miscanthus; acetic acid; biomass; gas chromatography-mass spectrometry; guaiacol; heat treatment; nuclear magnetic resonance spectroscopy; phenol; pyrolysis; quantitative analysis; temperature profiles
Abstract:
... Accurate measurement of biomass pyrolysis products can provide valuable guidance for thermal processing. However, pyrolysis generates large numbers of compounds in varying concentrations, factors that can make compound identification and quantitation difficult. In this study, Miscanthus biomass samples were analyzed using pyrolysis/two-dimensional gas chromatography/mass spectrometry (Py-GCxGC-MS) ...
DOI:
10.1021/acs.energyfuels.6b02645

5. Effect of Torrefaction on Bio-oil Upgrading over HZSM-5. Part 2: Byproduct Formation and Catalyst Properties and Function

Author:
Hilten Roger N.; Speir Richard A.; Kastner James R.; Mani Sudhagar; Das K. C.
Source:
Energy & Fuels 2013 v.27 no.2 pp. 844-856
ISSN:
1520-5029
Subject:
acetic acid; biofuels; biomass; byproducts; catalysts; feedstocks; formic acid; furfural; hydrogen; hydroxymethylfurfural; porosity; pyrolysis; surface area; temperature; torrefaction
Abstract:
... A three-step bio-oil production process involving torrefaction pretreatment (225, 250, or 275 °C at 20 min hold time), pyrolysis (500 °C, two heating rates), and secondary catalytic processing over HZSM-5 (at 400, 450, or 500 °C) was studied to determine how treatments affected byproduct formation and catalyst properties and function. Torrefaction pretreatment significantly reduced average yields ...
DOI:
10.1021/ef301695c

6. Fractional Condensation of Multicomponent Vapors from Pyrolysis of Cotton Stalk

Author:
Sui Haiqing; Yang Haiping; Shao Jingai; Wang Xianhua; Li Yunchao; Chen Hanping
Source:
Energy & Fuels 2014 v.28 no.8 pp. 5095-5102
ISSN:
1520-5029
Subject:
acetic acid; acidity; aldehydes; biofuels; biomass; condensers; cotton; energy; fluidized beds; ketones; phenols; physical properties; pyrolysis; vapors
Abstract:
... Bio-oil derived from the fast pyrolysis of biomass is a multicomponent mixture comprised of over 400 types of organics, which need to be separated for specific applications. Moisture contents and acids also have to be removed from the compounds for efficient energy consumption. In this study, unlike the conventional approaches of separating bio-oil after condensation, we developed a multicondenser ...
DOI:
10.1021/ef5006012

7. Effect of Torrefaction Temperature on Product Distribution from Two-Staged Pyrolysis of Biomass

Author:
Zheng Anqing; Zhao Zengli; Chang Sheng; Huang Zhen; He Fang; Li Haibin
Source:
Energy & Fuels 2012 v.26 no.5 pp. 2968-2974
ISSN:
1520-5029
Subject:
Fourier transform infrared spectroscopy; acetic acid; biofuels; biomass; carbonization; crosslinking; fluidized beds; gas chromatography-mass spectrometry; nuclear magnetic resonance spectroscopy; pyrolysis; stable isotopes; temperature; torrefaction; water content
Abstract:
... Two-staged biomass pyrolysis process consisting of torrefaction and subsequent fast pyrolysis is proposed to obtain high quality bio-oil. The purpose of this study is to evaluate the effect of torrefaction temperature on yield, composition, and physical properties of the liquid of torrefaction and bio-oil. Torrefaction of pine was conducted on an auger reactor at 240–320 °C with a residence time o ...
DOI:
10.1021/ef201872y

8. Low-Temperature Pyrolysis of Woody Biomass in the Thermally Thick Regime

Author:
Bennadji Hayat; Smith Krystle; Shabangu Shaka; Fisher Elizabeth M.
Source:
Energy & Fuels 2013 v.27 no.3 pp. 1453-1459
ISSN:
1520-5029
Subject:
Fourier transform infrared spectroscopy; acetic acid; biochar; biomass; carbon dioxide; carbon monoxide; computer software; formaldehyde; formic acid; gas chromatography-mass spectrometry; heat production; methane; methanol; models; oxygen; particle size; prediction; pyrolysis; soil amendments; temperature; wood
Abstract:
... Pyrolysis of biomass is a thermal degradation process in the absence of oxygen, producing gas, tar, and char. The product distribution depends on pyrolysis conditions (heating rate, peak temperature, particle size). In this work, the decomposition of dried poplar wood cylinders of 1.9 cm diameter is investigated under conditions favoring production of “biochar” for soil amendment, that is, in the ...
DOI:
10.1021/ef400079a

9. Biohydrogen Production by Dark Fermentation of Starch Using Mixed Bacterial Cultures of Bacillus sp and Brevumdimonas sp.

Author:
Bao Meidan; Su Haijia; Tan Tianwei
Source:
Energy & Fuels 2012 v.26 no.9 pp. 5872-5878
ISSN:
1520-5029
Subject:
Bacillus (bacteria); acetic acid; biomass; electrolysis; energy; ethanol; fermentation; gasification; glucose; hydrogen; hydrogen production; microorganisms; raw materials; starch; steam
Abstract:
... The energy use of hydrogen is recognized for its environmental advantages. Its utilization is expected to grow significantly over the coming years, and the development of new production methods to complement or substitute the traditional steam reforming, gasification, or electrolysis will further enhance that growth. The microbial conversion of biomass is considered to be the route with the highes ...
DOI:
10.1021/ef300666m

10. Catalytic Hydrothermal Reforming of Water-Soluble Organics from the Pyrolysis of Biomass Using a Ni/Carbon Catalyst Impregnated with Pt

Author:
Idesh Saruul; Kudo Shinji; Norinaga Koyo; Hayashi Jun-ichiro
Source:
Energy & Fuels 2012 v.26 no.1 pp. 67-74
ISSN:
1520-5029
Subject:
acetic acid; acetone; biofuels; biomass; carbon; catalysts; catalytic activity; feedstocks; models; nickel; pyrolysis
Abstract:
... Catalytic hydrothermal reforming (CHTR) of water-soluble organics from biomass pyrolysis was studied aiming at simultaneous production of combustible gas and clean water (containing little to no organics) from the water phase of bio-oil. Reforming of the feedstock with a total organic carbon concentration (TOC) of 10 000 ppm was performed at a temperature and pressure of 350 °C and 20 MPa, respect ...
DOI:
10.1021/ef201177b

11. Characterization of Products from Torrefaction of Sprucewood and Bagasse in an Auger Reactor

Author:
Chang Sheng; Zhao Zengli; Zheng Anqing; He Fang; Huang Zhen; Li Haibin
Source:
Energy & Fuels 2012 v.26 no.11 pp. 7009-7017
ISSN:
1520-5029
Subject:
Fourier transform infrared spectroscopy; X-ray diffraction; acetic acid; bagasse; biomass; carbonization; cellulose; chemical composition; crosslinking; hemicellulose; lignin; oils; pyrolysis; thermogravimetry; torrefaction
Abstract:
... Torrefaction experiments of sprucewood and bagasse were performed in an auger reactor at 260 °C, 280 °C, and 300 °C. The chemical composition and pyrolysis behavior of the resulting torrefied biomass were examined in detail. A number of water and lightweight organic compounds were removed from biomass through torrefaction treatment. Chemical component analysis showed that more acid insoluble fiber ...
DOI:
10.1021/ef301048a