Catalytic effect of metal nitrate salts during pyrolysis of impregnated biomass

Eibner, Simon; Broust, François; Blin, Joël; Julbe, A.

doi:10.1016/j.jaap.2014.11.024

Cited by 83 publications

(43 citation statements)

References 43 publications

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“…However, the use of the additives promoted the char formation, and tests in a pilot pyrolysis plant should be performed to verify whether the energy saving for conversion compensates the higher char formation. Eibner et al [20] studied the catalytic effect of seven metal nitrate salts on the eucalyptus pyrolysis reaction, concluding that metals were found to remain in all chars and tended to form metal-based nanoparticles that are able to act as in situ catalysts during the pyrolysis process.…”

Section: Thermogravimetric Analysismentioning

confidence: 99%

“…Some techniques have been used to improve the selectivity of products from fast pyrolysis of biomass, such as the variation in reaction temperatures [15,16]; the use of noble metals [17,18]; and the use of heterogeneous catalysts, such as metal chlorides [13,19,20] or zeolites [5,14,21]. The advantage of metal chlorides is the low cost when compared to noble metals or zeolites.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Thermogravimetric Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Santana

Sousa

Cardoso

et al. 2016

J Therm Anal Calorim

View full text Add to dashboard Cite

show abstract

“…Despite the existence of different methods and approaches to the processing of agricultural plant waste, scientists are currently attracted by various modifications of the pyrolysis methods since traditional pyrolysis is not fully capable of solving the problems of the efficient conversion of plant biomass waste for energy purposes [6]. e composition of the pyrolysis products for the plant biomass strongly depends on the feedstock composition, in particular, the content of cellulose, hemicelluloses, and lignin.…”

Section: Introductionmentioning

confidence: 99%

Effect of Metal Chlorides on the Pyrolysis of Wheat Straw

Lugovoy

Chalov

Kosivtsov

et al. 2019

International Journal of Chemical Engineering

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In this paper, the results of the study on the influence of the addition of 10 wt.% of FeCl 3 , CoCl 2 , NiCl 2 , ZnCl 2 , SnCl 2 , and CuCl 2 on the wheat straw pyrolysis process are presented. e studied chlorides were found to affect the pyrolysis process; however, the highest activity was observed while using CuCl 2 . e presence of the copper chloride led to the decrease in the temperature of the initial destruction of hemicellulose fraction of wheat straw by 64°S. Besides, the use of CuCl 2 allowed increasing the yield of liquid and solid pyrolysis products as well as decreasing the molecular weight distribution of the volatiles. Moreover, the increase in the hydrogen and decrease in carbon dioxide concentration were also observed in the presence of copper chloride. e analysis of the solid residue obtained in the wheat straw pyrolysis in the presence of CuCl 2 showed the increase in the specific surface area of the carbon residue from 24 up to 63.5 m 2 /g in comparison with that obtained for the noncatalytic process.

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“…For instance, Eibner et al . investigated the pyrolysis of biomass impregnated with different metal salts . Wang et al .…”

Section: Pyrolysis Reactors: Identifying the Most Suitable Technologymentioning

confidence: 99%

“…For instance, Eibner et al investigated the pyrolysis of biomass impregnated with different metal salts. 153 Wang et al used sulfated zirconia to study its catalytic effect on pyrolysis of cellulose over a temperature range of 290 °C to 400 °C in a fixed-bed reactor. 87 Fixedbed reactors are simpler to operate but have inefficient heat transfer rates.…”

Section: Fixed-bed Reactorsmentioning

confidence: 99%

Cellulose fast pyrolysis for platform chemicals: assessment of potential targets and suitable reactor technology

Parihar

Bhattacharya

2019

Biofuels Bioprod Bioref

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The cellulosic component of lignocellulosic biomass can be converted to commercially valuable platform chemicals through pyrolysis provided it is effectively controlled and optimized. This review first discusses the underpinning kinetics and mechanism of cellulose pyrolysis to identify target platform chemicals. Platform chemicals like 5‐hydroxymethyl furfural, 5‐chloromethyl furfural, and levoglucosenone, which are potentially amenable to the pyrolytic conversion of cellulose, are then elucidated. There are laboratory and large‐scale reactor technologies available for converting biomass to bio‐oil but they have not been comprehensively investigated for producing platform chemicals through pyrolysis. This review critically evaluates different reactor types available for developing the catalytic pyrolysis process for converting cellulosic component of biomass to platform chemicals. The fluidized bed reactor stands out as the most suitable reactor technology for the catalytic pyrolysis of cellulose to platform chemicals owing to attributes like short residence time, high heating rate, uniform mixing, efficient heat transfer, and scalability of operations. This article provides perspective on the implementation of this technology for the pyrolysis of the cellulosic component of biomass to platform chemicals. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd

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Catalytic effect of metal nitrate salts during pyrolysis of impregnated biomass

Cited by 83 publications

References 43 publications

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

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

Effect of Metal Chlorides on the Pyrolysis of Wheat Straw

Cellulose fast pyrolysis for platform chemicals: assessment of potential targets and suitable reactor technology

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