Study on Heat Release Behavior of Cunninghamia lanceolata Biomass by TD-GC-MS

2010 ◽  
Vol 129-131 ◽  
pp. 38-41
Author(s):  
Qing Zhi Ma ◽  
Dang Quan Zhang ◽  
Qi Mei Liu ◽  
Wan Xi Peng
Keyword(s):  
Air Pollution ◽  
Acetic Acid ◽  
Heat Release ◽  
Raw Materials ◽  
Cunninghamia Lanceolata ◽  
Release Behavior ◽  
Plantation Forest ◽  
Additional Value ◽  
Application Prospects ◽  
Volatile Materials

Cunninghamia lanceolata has been the dominated species of plantation forest in South China. And thermoplasticization can decreases the hydroscopicity to increase the additional value of Cunninghamia lanceolata biomass. However, many heat release volatiles would produce air pollution during thermoplasticization process. Therefore, the heat release behavior of Cunninghamia lanceolata biomass was studied by TD-GC/MS to make full use of and prevent the pollution of the volatile materials. The main constituents were cedrol(34.34%), phenol, 2,4-bis(1,1-dimethylethyl)( 11.49%), acetic acid(6.83%), carbon disulfide(3.1%), etc at 150°С. And the main constituents were acetic acid(20.22%), cedrol(17.20%), 1h-3a,7-methanoazulene, 2,3,4,7,8, 8a-hexahydro-3,6,8,8-tetramethyl-(3.58%), benzofuran, 2,3-dihydro-(3.26%), etc at 180°С. The heat release volatiles of Cunninghamia lanceolata biomass might be used as raw materials of bioenergy, rare biomedicines, and so on. Particularly, the volatiles had good application prospects and popularized value in purification of cedrol and acetic acid.

Study on Heat Release Behavior of Smoked Bamboo Biomass by TD-GC-MS

2011 ◽  
Vol 467-469 ◽  
pp. 1716-1720
Author(s):  
Xu Zhang ◽  
Qing Zhi Ma ◽  
Zhong Feng Zhang ◽  
Wan Xi Peng
Keyword(s):  
Air Pollution ◽  
Acetic Acid ◽  
Heat Release ◽  
Mass Production ◽  
Release Behavior ◽  
Application Prospects ◽  
Volatile Materials

Smoked bamboo has been put into mass production. However, many heat release volatiles would produce air pollution during thermoplasticization process. Therefore, the heat release behavior of smoked bamboo biomass was studied by TD-GC/MS to make full use of and prevent the pollution of the volatile materials. The main constituents were acetic acid(43.95%), cyclotrisiloxane, hexamethyl-(15.89%), octasiloxane, 1,1,3,3,5,5,7,7,9,9, 11,11,13,13,15,15-hexadecamethyl-(8.22%), 1,3-benzodioxole, 5-(2-propenyl)- (4.8%), cyclodecasiloxane, eicosamethyl-(4.51%), etc at 100°С. And the main constituents were acetic acid(42.05%), 1-phenanthrenecarboxaldehyde,7-ethenyl- 1,2,3,4,4a, 4b,5,6,7,9,10,10a-dodecahydro-1,4a,7-trimethyl-(8.42%), bicyclo[2.2.1]heptan-2-one, 1,7,7-trimethyl-,(1r)- (8.12%), cyclotrisiloxane, hexamethyl-(6.17%), 1,3-benzodioxole, 5-(2- propenyl)-(5.26%), 4-nitro-4'-chlorodiphenylsulfoxide(3.13%), etc at 115°С. The heat release volatiles of smoked bamboo biomass might be used as biomedicines. Particularly, the volatiles had good application prospects and popularized value in purification of cedrol and acetic acid.

Study on Health Function of Cunninghamia lanceolata Biomass by TD-GC-MS

2011 ◽  
Vol 704-705 ◽  
pp. 577-580
Author(s):  
Qing Zhi Ma ◽  
Dang Quan Ma ◽  
Lu Yang Xiao ◽  
Qi Mei Liu
Keyword(s):  
Acetic Acid ◽  
Ethyl Ester ◽  
South China ◽  
Value Added ◽  
Relative Content ◽  
Cunninghamia Lanceolata ◽  
Plantation Forest ◽  
Indoor Temperature ◽  
Health Function ◽  
Value Added Products

Cunninghamia lanceolata has been the dominated species of plantation forest in South China. However, the most products made from Cunninghamia lanceolata biomass are lower value added. In order to obtain top value-added products, health function of Cunninghamia lanceolata biomass were studied by TD-GC-MS. Relative content of each component was determined by area normalization. The main 40°С volatiles were 1-propanone, 2-amino-1-phenyl-(14.22%), benzene (11.17%), acetic acid (10.16%), cyclopentanecarboxylic acid, 1-(2-butenyl)-2-oxo-, ethyl ester, (e)-( 7.56%), 1h-cyclopenta [1,3] cyclopropa [1,2] b enzene, octahydro-7-methyl-3-methylene-4-(1-methylethyl)-(6.24%), etc. And the main 60°С volatiles were cedrol (29.65%), acetic acid (12.35%), cyclopentanecarboxylic acid, 1-(2-butenyl)-2-oxo-, ethyl ester, (e)- (7.78%), 1,6-cyclodecadiene, 1-methyl-5-met hylene-8-(1-methylethyl)- (6.11%), etc. So Cunninghamia lanceolata biomass had health function under indoor temperature. Keywords: Health function; Cunninghamia lanceolata; Biomass; TD-GC-MS

Study on Heat Release Behavior of Pinus Biomass by TD-GC-MS

2011 ◽  
Vol 55-57 ◽  
pp. 152-156
Author(s):  
Zhong Feng Zhang ◽  
Lan Sheng Wang ◽  
Qing Zhi Ma ◽  
Wan Xi Peng
Keyword(s):  
Air Pollution ◽  
Heat Release ◽  
Mass Production ◽  
Caryophyllene Oxide ◽  
Release Behavior ◽  
Drying Process ◽  
Alpha Pinene

Pinus has been put into mass production. However, many heat release volatiles would produce air pollution during drying process. Therefore, the heat release behavior of Pinus biomass was studied by TD-GC/MS. The main constituents were at 100°С 1,4-methanoazulene,decahydro-4,8, 8-trimethyl-9-methylene-(30.6%), 1,4-methanoazulen-9-ol,decahydro-1,5,5,8a-tetramethyl-(14.85%), 1,2,4-methenoazulene, decahydro-1,5,5,8a-tetramethyl-(8.56%), 1r-.alpha.-pinene(7.92%), epiglobulol(4.57%), bicyclo[2.2.1]heptan- 2-one, 1,7,7- trimethyl-, (1r)- (4.33%), caryophyllene oxide(3.37%), etc. And the main constituents at 110°С were 1,4-methanoazulene, decahydro-4,8, 8-trimethyl-9-methylene-(40.31%), 1,4-methanoazulen-9-ol, decahydro-1,5,5,8a-tetramethyl-(15.35%), .alpha.-pinene(8.88%), bicyclo [2.2.1]heptan-2-one, 1,7,7- trimethyl-, (1r)- (5.73%), cyclohexane-1,3-dione, 2-allylamin omethylene-5,5-dimethyl-(5.24%), naphthalene, 1,1'-(1,2-ethanediyl) bis[decahydro-(4.83%), spiro[5.5]undec-2-ene,3,7,7-trime thyl-11-methylene-(4.05%), etc. The heat release volatiles of Pinus biomass was safe to people during drying process.

Assessment on Environmental Friendly Characteristics of Smoked Bamboo Biomass for Building Materials

2011 ◽  
Vol 183-185 ◽  
pp. 1832-1836
Author(s):  
Wan Xi Peng ◽  
Qiu Xue ◽  
Feng Juan Wu ◽  
Xu Zhang ◽  
Zhong Feng Zhang
Keyword(s):  
Acetic Acid ◽  
Heat Release ◽  
Building Materials ◽  
Raw Materials ◽  
Propanoic Acid ◽  
Environmental Friendly

The main constituents at 230°С were propanoic acid, 2-(aminooxy)-(16.99%) , propanamide, 2-hydroxy-n-methyl-(14.20%) , benzaldehyde, 2-methyl-(13.22%) , furfural(9.44%) , butanal, 2-methyl-(8.09%) , acetic acid(7.09%) , hydrazine, methyl-(4.14%) , etc. And the main constituents at 280°С were hydrazine, ethyl-(24.87%) , 2(3h)-furanone, dihydro-4-hydroxy-(15.24%) , phenol, 2,6-dimethoxy-(11.82%) , benzaldehyde, 2-methyl-(11.49%) , furfural(4.90%) , etc. The heat release volatiles of smoked bamboo biomass might be used as raw materials of rare biomedicines. So the smoked bamboo biomass for building materials had environmental friendly characteristics.

Mechanism and Application Prospects of Sewage Sludge Conditioning with Fly-Ash

2014 ◽  
Vol 878 ◽  
pp. 679-688 ◽  
Author(s):  
Min Yue ◽  
Meng Zhang ◽  
Bin Liu ◽  
Chun Yuan Ma
Keyword(s):  
Electron Microscope ◽  
Fly Ash ◽  
Sewage Sludge ◽  
Specific Resistance ◽  
Raw Materials ◽  
Single Factor ◽  
Sludge Cake ◽  
Application Prospects ◽  
Scanning Electron ◽  
Skeleton Structure

The effects of fly-ash on dewatering of sewage sludge were studied according to sludge specific resistance (SSR), dehydrated speed, and moisture content of sludge cake as investigation indexes through single-factor experiments by contrasting to cationic polyacrylamide (PAM). The results showed that SSR kept decreasing with the rising of fly-ash dosage. When the dosage of fly-ash was 0.02 g/(ml sludge), SSR reduced by 65.2%. When the dosage of fly-ash was over 0.03 g/(ml sludge) adding with PAM, the dehydrated speed will be increased by three fourths. Through the analyses of Zeta potential, scanning electron microscope (SEM) observation, combined with the dehydration experiments, it was thought that the mechanism of fly-ash on dewatering of sewage sludge was that their particles evenly dispersed in sludge floc skeleton structure and thus decreased the SSR and improved the permeability of the sludge cake. The disposal of dewatering sludge and recycling approaches after fly-ash condition were also discussed. They can be used as landfill or as raw materials in building fields.

Temperature Dependence of LiMn2O4 Prepared by a Solution Combustion Synthesis in the System of Acetate Salts and Acetic Acid

2012 ◽  
Vol 485 ◽  
pp. 465-468
Author(s):  
Li Li Zhang ◽  
Gui Yang Liu ◽  
Jun Ming Guo ◽  
Bao Sen Wang ◽  
Ying He
Keyword(s):  
Acetic Acid ◽  
Combustion Synthesis ◽  
Raw Materials ◽  
Synthesis Method ◽  
Solution Combustion Synthesis ◽  
Electrochemical Performances ◽  
Metal Foil ◽  
X Ray Diffraction ◽  
Solution Combustion ◽  
Acid Ratio

Spinel LiMn2O4 have been prepared by the solution combustion synthesis method using acetate salts as raw materials and acetic acid as fuel. The phase compositions of the as-prepared products were determined by X-ray diffraction (XRD). The electrochemical performance of the products was tested by using a coin-type half battery versus lithium metal foil as anode material. XRD results suggested that the purities of the products prepared at 500oC are higher than these of the products prepared at 600oC. For the products prepared at 500oC, the purities of the products increase with increasing acetic acid ratios. But for the products prepared at 600oC, the purities of the products decrease with increasing acetic acid ratios. The performance tests indicated that the electrochemical performances of the products prepared at 500oC are better than these of the products prepared at 600oC. The product prepared at 500oC with the acetic acid ratio of 1.0 gets the best performance. The initial capacity of it reaches to 124.8mAh/g at the current density of 75mA/g, and after 50 cycles, the capacity retention is 93.7%.

Enhancing of Acetic Acid Production in Vinegar Production by the Consortium of Aspergillus spp. and Yeasts

2017 ◽  
Vol 866 ◽  
pp. 61-64
Author(s):  
Duongruitai Nicomrat
Keyword(s):  
Acetic Acid ◽  
Acid Production ◽  
Raw Materials ◽  
Bacterial Species ◽  
Acetic Acid Bacteria ◽  
Sugar Production ◽  
Acetic Acid Production ◽  
Fermented Broth ◽  
Two Stages ◽  
Diverse Groups

Fresh fruit vinegar fermentation is well known for the activities of diverse groups of microorganisms at two stages of the fermentation process. Their species diversity depend on the raw materials fermented. In the study, at the first step of high sugar production, less culturable acetic acid bacterial species but more Aspergillus spp. and yeasts, non-Saccharomyces were detected. At the end, the vinegar production step, the fermented broth showed only dominant acetic acid bacteria. In the study, yeasts and fungi were isolated and inoculated to the juice. The results showed that these consortium could help increase high alcohol and later more acetic acid production when compared with the control fruit vinegar fermentation.

SSESSMENT OF INFLUENCE OF THE MOUNTAIN ENTERPRISE ON THE ADJACENT TERRITORY ON THE INERT DUST FACTOR

2019 ◽  
Vol 4 (1) ◽  
pp. 80-91
Author(s):  
A.A. Khadartsev ◽  
◽  
V.M. Panarin ◽  
L.V. Kashintseva ◽  
O.A. Sedova ◽  
...  
Keyword(s):  
Air Pollution ◽  
Natural Experiment ◽  
Meteorological Factors ◽  
Negative Impact ◽  
Raw Materials ◽  
Housing Estate ◽  
Dust Pollution ◽  
Mining Enterprise ◽  
Inert Dust ◽  
Definition Of

At all stages of production and processing of raw materials, the leading factor of negative impact of mountain technologies on personnel of the enterprises and the population of the next to them of residential zones is air pollution dust. Features of a natural experiment by definition of a dust pollution of the ground atmosphere by the mining enterprise close to the housing estate are considered. Regularities of dispersion and sedimentation of dust on the underplaying surface taking into account characteristics of a source of dust, values of regional and local backgrounds and also meteorological factors of the environment are presented.Regularity of scattering and deposition of dust on the underplaying surface are determined. Approximate solution of the inverse task is proposed.

Conversion of Biomass-Derived Oxygen-Containing Intermediates into Chemical Raw Materials with Zeolite

2014 ◽  
Vol 625 ◽  
pp. 298-305 ◽  
Author(s):  
Takashi Goshima ◽  
Keisuke Ikeda ◽  
Kenta Fukudome ◽  
Kei Mizuta ◽  
Shuji Mitsuyoshi ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Butyric Acid ◽  
Levulinic Acid ◽  
Raw Materials ◽  
New Production ◽  
Gaseous Hydrocarbon ◽  
Hydrothermal Reactions ◽  
Production Route ◽  
Maximum Value ◽  
High Yields

To establish a new production route of biomass-derived BTX and propylene, the catalytic conversion of oxygen-containing intermediates which are furfural, levulinic acid, acetic acid or butyric acid, obtained by hydrothermal reactions of bagasse or fermentation of molasses was investigated with zeolites, ZSM-5, SAPO-11 and SAPO-34. Levulinic acid and acetic acid were suitable for generating BTX with ZSM-5. On the other hand, the butyric acid was valuable for converting to chemical raw materials with ZSM-5. By using SAPO-11 as the catalyst, butyric acid converted to propylene at high yields. The yield for propylene was the maximum value 58.8C% at 723K, especially the ratio of propylene to gaseous hydrocarbon products increased up to 90.4C%.

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