Thermogravimetric and mass spectrometry analyses of cellulose pyrolysis under the synergistic effect of CaO and K2HPO4∙3H2O

Lin, Yu-Yu; Zhu, Liangtao; Wang, Hujun; Gu, Mingyan; Wang, Jialun; Chu, Huaqiang

doi:10.1080/15567036.2019.1587049

Cited by 3 publications

(1 citation statement)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…CaO can significantly reduce the yield of acids. Therefore, it was assumed that the interaction of K2HPO4 and CaO would produce some beneficial synergistic effects on biomass pyrolysis (Lin et al 2019). A thermogravimetric-mass spectrometry (TG-MS) study was conducted relative to the cellulose pyrolysis with the mixture of CaO and K2HPO43H2O.…”

Section: Introductionmentioning

confidence: 99%

Thermogravimetric mass spectrometry of lignin pyrolysis under the co-action of CaO and K2HPO4·3H2O

Chen

Yao

Lin

et al. 2020

BioRes

Self Cite

View full text Add to dashboard Cite

The pyrolysis processes of lignin under the action of CaO and K2HPO4·3H2O alone or in coordination were studied by thermogravimetric mass spectrometry (TG-MS). The experimental results showed that after addition of CaO, CaO immobilized the “CO2-like active intermediates” produced during lignin pyrolysis, which reduced the amount of CO2 emission in the first stage and lowered the temperature of CO2 emission in the second stage. After addition of K2HPO4·3H2O, lignin pyrolysis was remarkably advanced. K2HPO4·3H2O catalyzed methyl breakages in the first two pyrolysis stages, and it hindered the release of volatile matter in the third stage to promote the formation of more coke. K2HPO4·3H2O catalyzed the reactions toward formation of aromatic ring products and phenols. After addition of CaO and K2HPO4·3H2O, the initial pyrolysis stage was milder than that with K2HPO4·3H2O alone, and the weight loss peak was sharper in the second stage. In the pyrolysis stage, the trend of CH4, CO, M/Z = 46, toluene, and furfural emission showed that there was a synergistic effect between K2HPO4·3H2O and CaO.

show abstract

Section: Introductionmentioning

confidence: 99%

Thermogravimetric mass spectrometry of lignin pyrolysis under the co-action of CaO and K2HPO4·3H2O

Chen

Yao

Lin

et al. 2020

BioRes

Self Cite

View full text Add to dashboard Cite

show abstract

Experimental Study on Pyrolysis of Rice Straw Catalyzed by CaO/Al2O3-Phosphate Mixture

Zhang

et al. 2022

Bioenerg. Res.

Self Cite

View full text Add to dashboard Cite

This paper studied the synergistic effects of CaO or Al 2 O 3 and three potassium phosphates (e.g., KH 2 PO 4 , K 2 HPO 4 •3H 2 O and K 3 PO 4 •3H 2 O) in the rice stalk pyrolysis through pyrolysis-gas chromatography-mass spectrometer (Py-GC/MS) experiments. The results show that after co-catalyzed by CaO/Al 2 O 3 and potassium phosphates, the total contents of phenols, aldehydes, acids, LG from most samples decrease and those of ketones increase compared with those catalyzed by potassium phosphates alone.CaO/Al 2 O 3 and potassium phosphates show synergistic effects in the regulation of the types or contents of phenols, ketones, aldehydes, etc. and are suitable for the production of ketone-rich bio-oil. Dehydration reactions, etc. are further promoted under the co-catalysis of the two catalysts, and some phenols can be converted to benzene products, etc. The contents of acetic acid can decrease to 0. For 50% K 3 PO 4 .3H 2 O impregnated sample, the yields of furans reduce sharply after CaO addition. For most impregnated samples except 50% K 2 HPO 4 •3H 2 O sample and 30%, 50% K 3 PO 4 .3H 2 O, the contents of total furans and furfural increase after Al 2 O 3 addition.

show abstract

Experimental study on pyrolysis of camphor wood catalyzed by CaO-calcined phosphate mixture

Lin

Zhang

Zhu

et al. 2021

Fuel

View full text Add to dashboard Cite

Thermogravimetric and mass spectrometry analyses of cellulose pyrolysis under the synergistic effect of CaO and K₂HPO₄∙3H₂O

Cited by 3 publications

References 9 publications

Thermogravimetric mass spectrometry of lignin pyrolysis under the co-action of CaO and K2HPO4·3H2O

Thermogravimetric mass spectrometry of lignin pyrolysis under the co-action of CaO and K2HPO4·3H2O

Experimental Study on Pyrolysis of Rice Straw Catalyzed by CaO/Al2O3-Phosphate Mixture

Experimental study on pyrolysis of camphor wood catalyzed by CaO-calcined phosphate mixture

Contact Info

Product

Resources

About