Analytical pyrolysis of tobacco residue: Effect of temperature and inorganic additives

Cardoso, Cássia Regina Primila; Ataíde, Carlos Henrique

doi:10.1016/j.jaap.2012.10.029

Cited by 69 publications

(29 citation statements)

References 45 publications

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“…Furfural is a common product of biomass pyrolysis; it is an organic reagent used in the production of medicines, resins, food, and fuel additives. [53,54] ZnO had no marked effect on the formation of phenols, alcohols, and ketones, whereas the yields of PAHs were decreased ( Figure 5). These results are in agreement with previous studies.…”

Section: Chemical Composition Of Bio-oilsmentioning

confidence: 99%

Catalytic Pyrolysis of Pine Wood Sawdust to Produce Bio-oil: Effect of Temperature and Catalyst Additives

Özbay

2015

Journal of Wood Chemistry and Technology

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In this work, non-catalytic pyrolysis of Turkish pine (Pinus brutia Ten.) wood sawdust was performed in a fixed-bed reactor at various temperatures to obtain the optimum conditions to achieve a maximum bio-oil yield. The highest yield of bio-oil was obtained about 46 wt% at 550 • C for non-catalytic pyrolysis. At the optimum conditions, the effects of different catalyst types (KOH, ZnCl 2 , and ZnO) and amount of catalyst (5, 10, 15, and 20 wt%) on the pyrolysis product yields and bio-oil properties were investigated. The presence of catalysts changed the product distribution considerably. Increasing the amount of catalyst led to a decrease in the yield of liquid product, while the gas and char yields increased compared to non-catalytic pyrolysis. The chemical compositions of bio-oil were determined with GC-MS analyses. It was determined that bio-oils contain a large variety of organic compounds, such as furans, aldehydes, ketones, phenols, acids, benzenes, alcohols, alkanes, and polycyclic aromatic hydrocarbons (PAHs). The catalysis by KOH significantly increased the levels of phenols, while it reduced the formation of acids and aldehydes. ZnCl 2 produced bio-oil with high percentages of aldehydes. Moreover, ZnO reduced the proportion of PAH in the bio-oil. These results demonstrated that bio-oils could improve with a catalyst. Therefore, catalyst selection for high bio-oil quality is crucial in industrial applications.

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Section: Chemical Composition Of Bio-oilsmentioning

confidence: 99%

Catalytic Pyrolysis of Pine Wood Sawdust to Produce Bio-oil: Effect of Temperature and Catalyst Additives

Özbay

2015

Journal of Wood Chemistry and Technology

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“…The transfer line between the pyrolyzer and the gas chromatograph was maintained at 280°C. For each sample, the analyses were performed at least three times to ensure the reproducibility of the results [30].…”

Section: Analytical Pyrolysismentioning

confidence: 99%

Sodium, zinc and magnesium chlorides as additives for soybean hulls pyrolysis

Santana

Sousa

Cardoso

et al. 2016

J Therm Anal Calorim

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Thermogravimetric analysis and analytical pyrolysis were used to investigate the decomposition of pure soybean hulls and hulls impregnated with metal chlorides (NaCl, ZnCl 2 and MgCl 2 ). Each additive was studied at contents of 10, 20 and 30 % in mass concentration. Thermogravimetric analyses were performed at different heating rates (5, 10, 15, 20 and 25°C min -1 ) under inert nitrogen atmosphere. Analytical pyrolysis experiments were carried out at 550 and 650°C, and the pyrolysis products were analyzed by gas chromatography and mass spectrometry. The mass loss and derivative mass loss curves of soybean hulls impregnated with salts showed a decrease in the decomposition temperature and reduction in maximum degradation rate for the samples containing ZnCl 2 and MgCl 2 . The samples impregnated with NaCl showed an increase in the decomposition temperature and reductions in the maximum degradation rate. Considering analytical pyrolysis results, samples with MgCl 2 and ZnCl 2 presented increases in aldehydes and reductions in acid and ester contents. The addition of NaCl did not present an important effect on pyrolysis products from soybean hulls. The study concerning the thermal decomposition of soybean hulls to which metal chlorides were added is not registered in previous works. Results indicated that the addition of ZnCl 2 and MgCl 2 reduced the thermal degradation temperatures and that the studied mixtures can be used as sustainable raw materials for the production platform of fuels and value-added chemicals.

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“…Among them, pyrolysis is a remarkable and most known industrial technology used for the bio-oil production. Pyrolysis can be defined as the conversion of the biomass to liquid bio-oil, solid charcoal and gaseous products in the absence of oxygen under atmospheric pressure and moderate temperature ranging from 300 to 600 • C [6][7][8]. The major constituents of the biomass comprising cellulose, hemicelluloses, lignin, inorganic and some extractives have different thermal behavior during pyrolysis [6,[9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

In-depth investigation on thermochemical characteristics of palm oil biomasses as potential biofuel sources

Asadieraghi

Daud

2015

Journal of Analytical and Applied Pyrolysis

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Analytical pyrolysis of tobacco residue: Effect of temperature and inorganic additives

Cited by 69 publications

References 45 publications

Catalytic Pyrolysis of Pine Wood Sawdust to Produce Bio-oil: Effect of Temperature and Catalyst Additives

Catalytic Pyrolysis of Pine Wood Sawdust to Produce Bio-oil: Effect of Temperature and Catalyst Additives

Sodium, zinc and magnesium chlorides as additives for soybean hulls pyrolysis

In-depth investigation on thermochemical characteristics of palm oil biomasses as potential biofuel sources

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