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1. Gasification reactivity of co-pyrolysis char from coal blended with corn stalks

Author:
Chen, Xiye; Liu, Li; Zhang, Linyao; Zhao, Yan; Qiu, Penghua
Source:
Bioresource technology 2019 v.279 pp. 243-251
ISSN:
0960-8524
Subject:
corn stover,   etc   ; coal; gasification; pyrolysis; temperature; thermogravimetry;     Show all 6 Subjects
Abstract:
... The gasification reactivity of coal and corn stalks co-pyrolyzed char is studied using thermogravimetric analysis, and the influence of co-pyrolysis on co-gasification reactivity is quantitatively characterized by synergy index. The results demonstrate that with increasing the pyrolysis temperature, the gasification reactivity of coal char gradually decreases, however, the gasification reactivity ...
DOI:
10.1016/j.biortech.2019.01.108

2. A novel strategy for efficient anaerobic co-digestion based on the pretreatment of corn stover with fresh vinegar residue

Author:
Wen, HongLiang; Wachemo, Akiber Chufo; Zhang, Liang; Zuo, XiaoYu; Yuan, HaiRong; Li, XiuJin
Source:
Bioresource technology 2019 v.288 pp. 121412
ISSN:
0960-8524
Subject:
corn stover,   etc   ; anaerobic digestion; biogas; hydrolysis; lignocellulose; methane; synergism; vinegars;     Show all 8 Subjects
Abstract:
... A novel method was advanced for efficient anaerobic co-digestion by using fresh vinegar residue (FVR) as acidifier for pretreating corn stover (CS). FVR acted as one substrate as well as an acidifier by the acids contained in FVR. It was found that the organic acids in FVR could efficiently enhance the hydrolysis of lignocellulose in CS. The biomethane production from co-digestion of FVR and CS pr ...
DOI:
10.1016/j.biortech.2019.121412

3. Anaerobic digestion performance and microbial community structure of corn stover in three-stage continuously stirred tank reactors

Author:
Liu, Yue; Wachemo, Akiber Chufo; Yuan, HaiRong; Li, XiuJin
Source:
Bioresource technology 2019 v.287 pp. 121339
ISSN:
0960-8524
Subject:
corn stover,   etc   ; Methanobacteriaceae; Methanosarcinaceae; Ruminococcaceae; Syntrophomonadaceae; anaerobic digestion; bioenergy; methane production; methanogens; microbial communities;     Show all 10 Subjects
Abstract:
... A new three-stage anaerobic digestion (TSAD) system combining the two-stage and serial continuously stirred tank reactor (CSTR) was developed for the high-efficiency anaerobic digestion (AD) of corn stover. At the same hydraulic retention time of 50 d and organic loading rate (OLR) of 1.8 g TS L−1 d−1, TSAD achieved a 33.2–50.5% higher methane yield than that of the traditional one-stage and two-s ...
DOI:
10.1016/j.biortech.2019.121339

4. Quantifying reductions in soaking in aqueous ammonia pretreatment severity and enzymatic hydrolysis conditions for corn stover pellets

Author:
Pandey, Ramsharan; Nahar, Nurun; Tumuluru, Jaya Shankar; Pryor, Scott W.
Source:
Bioresource technology reports 2019 v.7 pp. 100187
ISSN:
2589-014X
Subject:
corn stover,   etc   ; ammonia; biomass; biorefining; enzymatic hydrolysis; feedstocks; glucose; hydrolysis; soaking;     Show all 9 Subjects
Abstract:
... The benefits of using pelleted corn stover compared to loose corn stover with low severity soaking in aqueous ammonia pretreatment and reduced enzyme loadings were studied. Loose and pelleted corn stover were treated with the same set of pretreatment and hydrolysis conditions. A range of low to high severity pretreatment conditions and enzyme loadings were tested to determine conditions to achieve ...
DOI:
10.1016/j.biteb.2019.100187

5. Sequencing batch dry anaerobic digestion of mixed feedstock regulating strategies for methane production: Multi-factor interactions among biotic and abiotic characteristics

Author:
Yu, Jiadong; Zhao, Lixin; Feng, Jing; Yao, Zonglu; Huang, Kaiming; Luo, Juan; Wei, Shimeng; Chen, Jiankun
Source:
Bioresource technology 2019 v.284 pp. 276-285
ISSN:
0960-8524
Subject:
corn stover,   etc   ; anaerobic digestion; cow manure; feedstocks; inoculum; methane production; methanogens; synergism; volatile fatty acids;     Show all 9 Subjects
Abstract:
... This study investigated the synergistic effects and regulation strategy of multiple factors for improving methane production in sequencing batch dry anaerobic digestion (SBD-AD) using corn stalks (CS) and cow dung (CD). The regulation of the spray frequency (SF) and inoculum content (IC) significantly improved methane yield, which increased feedstock ratios (FRs) by 12.4–121.3%. Moreover, the rela ...
DOI:
10.1016/j.biortech.2019.03.141

6. Toluene microwave-assisted reforming with CO2 or a mixed agent of CO2-H2O on Fe-doped activated biochar

Author:
Li, Longzhi; Yang, Zhijuan; Qin, Xiaomin; Chen, Jian; Yan, Keshuo; Zou, Guifu; Peng, Zhuoyan; Wang, Fumao; Song, Zhanlong; Ma, Chunyuan
Source:
Energy 2019 v.177 pp. 358-366
ISSN:
0360-5442
Subject:
corn stover,   etc   ; biochar; carbon dioxide; catalytic activity; iron; microwave treatment; pyrolysis; surface area; synergism; temperature; toluene;     Show all 11 Subjects
Abstract:
... Biochar obtained from microwave pyrolysis of corn stalk was employed for catalyzing tar reforming, using toluene as the representative. Catalytic performance of different biochar and toluene reforming with a mixed agent of CO2 and H2O were focused on. By comparison, it was found Fe-doped activated char exhibited a relatively steady capability on toluene CO2 reforming, with an average conversion of ...
DOI:
10.1016/j.energy.2019.04.086

7. Evaluation of Semi-dry Mesophilic Anaerobic Co-digestion of Corn Stover and Vegetable Waste by a Single-Phase Process

Author:
Zhang, Yunhua; Xu, Lu; Liang, Yue-gan; Yang, Shuyun; Liu, Xiao-hong
Source:
Waste and biomass valorization 2019 v.10 no.5 pp. 1159-1166
ISSN:
1877-2641
Subject:
corn stover,   etc   ; acidification; anaerobic digestion; leaching; methane production; mixing ratio; synergism; total solids; vegetable residues;     Show all 9 Subjects
Abstract:
... The performance of semi-dry anaerobic co-digestion of corn stover and vegetable waste was investigated using batch reactors and leaching bed reactors (LBRs). Six mixing ratios of corn stover and vegetable waste were employed to investigate optimal methane production using batch reactors, and process stability was assessed using the two LBRs. Kinetic assessment, methane production, volatile solid ( ...
DOI:
10.1007/s12649-017-0133-5

8. Process integration for ethanol production from corn and corn stover as mixed substrates

Author:
Yu, Jianming; Xu, Zhaoxian; Liu, Lei; Chen, Sitong; Wang, Shengwei; Jin, Mingjie
Source:
Bioresource technology 2019 v.279 pp. 10-16
ISSN:
0960-8524
Subject:
corn stover,   etc   ; corn; ethanol; ethanol production; fermentation; hydrolysates; hydrolysis; liquefaction; mixing; saccharification;     Show all 10 Subjects
Abstract:
... This work investigated all possible process integration strategies for ethanol production from corn and dilute acid pretreated corn stover (CS) as mixed substrates. Three corn to pretreated CS ratios (20%:10%, 10%:20% and 5%:25%) were examined. When the ratio of corn to pretreated CS was 20%:10%, the process integration strategy that mixed corn with CS hydrolysate for liquefaction followed by SSF ...
DOI:
10.1016/j.biortech.2019.01.112

9. Two-stage thermophilic anaerobic co-digestion of corn stover and cattle manure to enhance biomethane production

Author:
Joseph, Gail; Zhang, Bo; Mahzabin Rahman, Quazi; Wang, Lijun; Shahbazi, Abolghasem
Source:
Journal of environmental science and health 2019 v.54 no.5 pp. 452-460
ISSN:
1532-4117
Subject:
corn stover,   etc   ; anaerobic digestion; biodegradability; biogas; cattle manure; cellulose; hemicellulose; lignin; liquids; methane; temperature;     Show all 11 Subjects
Abstract:
... Two-stage thermophilic anaerobic co-digestion of cattle manure and corn stover was conducted to increase biomethane production. The first stage pre-digestion of corn stover was studied based on the following treatment variables: corn stover to liquid fraction of digestate (CS:LFD) ratio (1:7, 1:10, 1:13, 1:14), digestion temperature (55 °C, 60 °C) and digestion time (3, 7, 14 days). The reduction ...
DOI:
10.1080/10934529.2019.1567156

10. Alkaline post-incubation improves cellulose hydrolysis after γ-valerolactone/water pretreatment

Author:
Jia, Lili; Qin, Yujie; Wen, Peiyao; Zhang, Tian; Zhang, Junhua
Source:
Bioresource technology 2019 v.278 pp. 440-443
ISSN:
0960-8524
Subject:
corn stover,   etc   ; adsorption; catalysts; cellulases; cellulose; digestibility; esterification; hemicellulose; hydrolysis; lignin; lignocellulose; sodium hydroxide; sulfuric acid;     Show all 13 Subjects
Abstract:
... The impact of γ-valerolactone/water (GVL/H2O) pretreatment coupled with alkaline post-incubation on the digestibility of cellulose substrates was investigated. When Avicel was pretreated by GVL/H2O with H2SO4 as catalyst, the glucan conversion decreased from 27% (untreated Avicel) to 16% due to the esterification of cellulose after pretreatment. After incubation of GVL/H2O pretreated Avicel with 1 ...
DOI:
10.1016/j.biortech.2019.01.141

11. Hybrid dilute sulfuric acid and aqueous ammonia pretreatment for improving butanol production from corn stover with reduced wastewater generation

Author:
Xiao, Min; Wang, Lan; Wu, Youduo; Cheng, Chi; Chen, Lijie; Chen, Hongzhang; Xue, Chuang
Source:
Bioresource technology 2019 v.278 pp. 460-463
ISSN:
0960-8524
Subject:
corn stover,   etc   ; ammonia; butanol; feedstocks; hemicellulose; lignin; lignocellulose; pretreatment; sugars; sulfuric acid; temperature; washing; wastewater;     Show all 13 Subjects
Abstract:
... An efficient hybrid pretreatment method was developed for butanol production from corn stover using dilute sulfuric acid (DA) and aqueous ammonia (AA). With the optimized AA concentration, treatment temperature and time of 10% AA, 80 °C and 24 h, the hybrid pretreatment could effectively dissolve hemicellulose and lignin with solid recovery rate of 37.45% and lignin reduction rate of 86.77% compar ...
DOI:
10.1016/j.biortech.2019.01.079

12. Understanding the mechanism of cornstalk liquefaction in water/ethanol mixtures through Py-GC/MS analysis of the solid residues

Author:
Shi, Zheng-Jun; Zhang, Run-Yang; Sun, Jiao; Xie, Xin-An; Liu, Hua-Min
Source:
Industrial crops and products 2019 v.130 pp. 292-300
ISSN:
0926-6690
Subject:
corn stover,   etc   ; biomass; ethanol; gas chromatography-mass spectrometry; liquefaction; pyrolysis; temperature; thermogravimetry; volatilization;     Show all 9 Subjects
Abstract:
... Few investigations have been made to apply thermal analysis methods on solid residue analysis to understand biomass liquefaction mechanistic information. To investigate the mechanism of cornstalk liquefaction in water/ethanol mixtures, the solid residues remaining after the liquefaction process were characterized by thermogravimetric analysis (TGA) and analytical pyrolysis (Py-GC/MS). Pyrolysis te ...
DOI:
10.1016/j.indcrop.2019.01.002

13. Performance of mature compost to control gaseous emissions in kitchen waste composting

Author:
Yang, Fan; Li, Yun; Han, Yuhua; Qian, Wentao; Li, Guoxue; Luo, Wenhai
Source:
The Science of the total environment 2019 v.657 pp. 262-269
ISSN:
0048-9697
Subject:
corn stover,   etc   ; ammonia; composting; germination; greenhouse gas emissions; kitchen waste; methane; mixing; nitrogen; nutrient content;     Show all 10 Subjects
Abstract:
... This study investigated the performance of mature compost to mitigate gaseous emissions during kitchen waste composting. Cornstalk was mixed with kitchen waste at a ratio of 3:17 (wet weight) as the bulking agent. Mature compost (10% of raw composting materials on the wet weight basis) was mixed into or covered on the composting pile. A control treatment without any addition of mature compost was ...
DOI:
10.1016/j.scitotenv.2018.12.030

14. Co-biodrying of sewage sludge and organic fraction of municipal solid waste: A thermogravimetric assessment of the blends

Author:
Zhang, Difang; Luo, Wenhai; Liu, Yifei; Yuan, Jing; Li, Guoxue
Source:
Waste management 2019
ISSN:
0956-053X
Subject:
corn stover,   etc   ; burning; combustion; mixing; municipal solid waste; raw materials; sewage sludge; temperature; thermogravimetry; waste management;     Show all 10 Subjects
Abstract:
... This study investigated the thermogravimetric properties of sewage sludge and organic fraction of municipal solid waste (OFMSW) during their co-biodrying at different fractions. Sewage sludge and OFMSW were co-biodried at the mass proportion of 0%, 42.5% and 85% (of the total wet weight), respectively, with 15% cornstalk as the bulking agent. Results show that of these three raw materials, OFMSW e ...
DOI:
10.1016/j.wasman.2019.03.017

15. A Demonstration of the Consistency of Maize Stover Pretreatment by Soaking in Aqueous Ammonia from Bench to Pilot-Scale

Author:
Athmanathan, Arun; Fallahi, Parisa; Lash, Terry; Trupia, Sabrina
Source:
BioEnergy research 2019 v.12 no.1 pp. 68-80
ISSN:
1939-1234
Subject:
corn stover,   etc   ; ammonia; biomass; biotransformation; culture flasks; fabrics; fermentation; glucans; lignocellulose; saccharification; soaking; temperature; viability; washing;     Show all 14 Subjects
Abstract:
... Soaking in aqueous ammonia (SAA) is a means of pretreating biomass at moderate temperatures and ammonia concentrations (15% w/w). To establish process consistency and scalability, sieved maize stover was pretreated at 50-ml, 300-ml, and 100-l scales. Each scale was carried out through different methods. Sealed reactor tubes were used for 50-ml pretreatment. Fabric dyeing apparatus was used for the ...
DOI:
10.1007/s12155-018-9954-8

16. Effects of liquefaction parameters of cellulose in supercritical solvents of methanol, ethanol and acetone on products yield and compositions

Author:
Wang, Xin; Xie, Xin-an; Sun, Jiao; Liao, Weiting
Source:
Bioresource technology 2019 v.275 pp. 123-129
ISSN:
0960-8524
Subject:
corn stover,   etc   ; acetone; biofuels; cellulose; esters; ethanol; liquefaction; methanol; solvents; temperature;     Show all 10 Subjects
Abstract:
... Cellulose extracted from cornstalk was liquefied in supercritical organic solvents at different liquefaction parameters. Different organic solvents (methanol, ethanol and acetone) were used to disintegrate cellulose at different temperatures (240, 260, 280, 300 and 320 °C), reaction time (0, 30, 60, 90 and 120 min) and solvents dosage (0, 80, 120, 160 and 200 mL). The results showed that similar l ...
DOI:
10.1016/j.biortech.2018.12.047

17. Efficient conversion of corn stover into 5-ethoxymethylfurfural catalyzed by zeolite USY in ethanol/THF medium

Author:
Chen, Binglin; Xu, Guizhuan; Zheng, Zhangbin; Wang, Dongxiang; Zou, Caihong; Chang, Chun
Source:
Industrial crops and products 2019 v.129 pp. 503-511
ISSN:
0926-6690
Subject:
corn stover,   etc   ; biomass; catalytic activity; ethanol; hydroxymethylfurfural; lignocellulose; response surface methodology; tetrahydrofuran; zeolites;     Show all 9 Subjects
Abstract:
... An efficient and green conversion process of producing 5-ethoxymethylfurfural (EMF) from corn stover was developed. The solid zeolite USY provided the good catalytic performance in ethanol medium with tetrahydrofuran (THF) as co-solvent, which can promote the formation of EMF, reducing the formation of ethyl levulinate and 5-hydroxymethylfurfural. The reaction conditions were optimized via respons ...
DOI:
10.1016/j.indcrop.2018.12.027

18. Optimization of Carbonization Process for the Production of Solid Biofuel from Corn Stalk Using Response Surface Methodology

Author:
Wang, Yajun; Qiu, Ling; Zhang, Tianle; Yang, Xuanmin; Kang, Kang
Source:
BioEnergy research 2019 v.12 no.1 pp. 184-196
ISSN:
1939-1234
Subject:
corn stover,   etc   ; biofuels; carbonization; combustion; models; moieties; particle size; response surface methodology; temperature; water content;     Show all 10 Subjects
Abstract:
... Corn stalk is not suitable for direct combustion due to poor grindability, high moisture content, and insufficient heating value. The aim of this study was to optimize reaction conditions to improve the quality of corn stalk char, and to investigate the effects of carbonization on the physicochemical and combustion characteristics of corn stalks and chars. Optimal conditions for the carbonization ...
DOI:
10.1007/s12155-018-9955-7

19. High-solids hydrolysis of corn stover to achieve high sugar yield and concentration through high xylan recovery from magnesium oxide-ethanol pretreatment

Author:
Li, Jun; Zhang, Meng; Wang, Donghai
Source:
Bioresource technology 2019
ISSN:
0960-8524
Subject:
corn stover,   etc   ; biomass; cellulose; enzymatic hydrolysis; ethanol; hydrolysis; lignin; magnesium; magnesium oxide; mixing; polysorbates; sugars; xylan;     Show all 13 Subjects
Abstract:
... MgO-ethanol pretreatment was studied to boost sugar conversions and concentrations during enzymatic hydrolysis. Although corn stover pretreated by MgO and 50% ethanol had the highest glucan and xylan recoveries (89 and 71%), excessive xylan/glucan ratio (54.8%) hinders the access of enzyme to internal cellulose and hemicellulose and only 57% glucan and 46% xylan conversions and 43 g/L sugars were ...
DOI:
10.1016/j.biortech.2019.02.058

20. A comparison of drum granulation of biochars

Author:
Briens, Lauren; Bowden-Green, Breanna
Source:
Powder technology 2019 v.343 pp. 723-732
ISSN:
0032-5910
Subject:
corn stover,   etc   ; Miscanthus; biochar; dust; feedstocks; granules; hydrophilicity; hydrophobicity; liquids; powders;     Show all 10 Subjects
Abstract:
... Drum granulation can be used to form biochar granules that could reduce dust hazards during biochar application to soils. An investigation of the effect of operational parameters using three biochar feedstock was conducted to identify the effect of biochar feedstock on granule properties. Cornstalk, birchbark and miscanthus biochar powders were successfully granulated and found to have varying gra ...
DOI:
10.1016/j.powtec.2018.11.077