A study on co-pyrolysis of bagasse and sewage sludge using TG-FTIR and Py-GC/MS

Lin, Yan; Liao, Yanfen; Yu, Zhaosheng; Fang, Shiwen; Ma, Xiaoqian

doi:10.1016/j.enconman.2017.08.062

Cited by 189 publications

(33 citation statements)

References 38 publications

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“…For example, the model-free methods of Kissinger-Akahira-Sunose (KAS) and Flynn-Wall-Ozawa (FWO) and the model-fitting method of the integral master-plots were combined to elucidate the three phases of the waste tea degradation mechanism using the best-fit D 3 , F 2 , and F 2.5 models, respectively ( Cai et al, 2019 ). TG-FTIR and Py-GC/MS investigations should be coupled to accurately distinguish the evolved gaseous products, their functional groups, and molecular structures ( Lin et al, 2017 ; Xu et al, 2018a ; Ma et al, 2019 ). For example, the pyrolytic gases of waste bicycle tires were precisely quantified coupling TG-FTIR and Py-GC/MS analyses ( Xu et al, 2018a ).…”

Section: Introductionmentioning

confidence: 99%

Pyrolysis dynamics of two medical plastic wastes: Drivers, behaviors, evolved gases, reaction mechanisms, and pathways

Ding

Huashan²,

Liu

et al. 2021

Journal of Hazardous Materials

100

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Section: Introductionmentioning

confidence: 99%

Pyrolysis dynamics of two medical plastic wastes: Drivers, behaviors, evolved gases, reaction mechanisms, and pathways

Ding

Huashan²,

Liu

et al. 2021

Journal of Hazardous Materials

100

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“…As is shown in Fig. 7(a 26]. When temperature was 600°C higher, the H 2 S was mainly from decomposition organic sulfur with strong bonding.…”

Section: Ms Resultsmentioning

confidence: 81%

Study on combustion and emission characteristics of chars from low-temperature and fast pyrolysis of coals with TG-MS

Liu

Gong

Wang

et al. 2019

Environmental Engineering Research

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To achieve the clean and efficient utilization of low-rank coal, the combustion and pollutant emission characteristics of chars from low-temperature and fast pyrolysis in a horizontal tube furnace were investigated in a TG-MS analyzer. According to the results, the combustion characteristic of chars was poorer than its parent coals. The temperature range of gaseous product release had a good agreement with that of TGA weight loss. Gaseous products of samples with high content of volatile were released earlier. The NO and NO 2 emissions of chars were lower than their parent coals. Coals of high rank (anthracite and sub-bituminous) released more NO and NO 2 than low rank coals of lignite, so were chars from coals of different ranks. SO 2 emissions of char samples were lower than parent coals and did not show obvious relationship with coal ranks.

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“…From Figure 5c, a single absorption peak was observed in 30-850 • C. It appeared to correspond with C-O and C=O groups which peaked at 310 • C and 295 • C, respectively. A previous study reported that C-O and C=O groups mainly derived from the pyrolysis of cellulose, hemicellulose, and lignin in sludge [23]. Above 310 • C, the absorbance of C-O and C=O groups decreased as temperature increased.…”

Section: Thermo-gravimetric Fourier Transform Infrared Spectroscopy (mentioning

confidence: 88%

“…To better understand the pyrolysis behavior of organic compounds containing carbon and oxygen, TG-FTIR experiments of sewage sludge were performed using a Diamond Thermogravimetric Analysis and Differential Thermal Analysis (TG/DTA) (PerkinElmer, US) coupled with Fourier transform infrared measurements (Nicolet 6700, US). The experimental conditions selected in this study were based on some previous literatures [23,24]. Temperature precision of the TG was ±0.5 • C with a microbalance sensitivity of ±0.1 µg.…”

Section: Thermo-gravimetric Fourier Transform Infrared (Tg-ftir) Specmentioning

confidence: 99%

“…Py-GC/MS experiments were performed to investigate the distribution of organic products from sludge pyrolysis. The experimental conditions selected in this study were based on some previous literatures [15,23,24]. A CDS Pyroprobe 5000 HP pyrolyser connected to a gas chromatography/mass spectrometry (Agilent Technologies 5977A MSD) was employed to conduct these tests.…”

Section: Pyrolysis-gas-chromatography/mass Spectrometry (Py-gc/ms) Tementioning

confidence: 99%

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Thermal Transformation of Carbon and Oxygen-Containing Organic Compounds in Sewage Sludge During Pyrolysis Treatment

et al. 2019

Energies

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Organic carbon (C) and oxygen (O) contained in sewage sludge strongly impact its thermal behavior during pyrolysis treatment. This study was aimed at getting an insight into the decomposition mechanism of organic compounds containing C and O during sludge pyrolysis using thermo-gravimetric Fourier transform infrared spectroscopy (TG-FTIR) and pyrolysis-gas-chromatography/mass spectrometry (Py-GC/MS) and helpfully improving energy conversion of sewage sludge. The temperature domains of transformation were determined and indications of the main compounds produced during each stage were obtained. Results showed that the volatile compounds that evolved after sludge pyrolysis were mainly distributed into six groups: alkenes, aromatic hydrocarbons, alcohols, aldehydes, phenols and carboxylic acids. Comparison in thermal behavior and composition of the evolved volatile compounds were observed. In the low temperature stage (<350 °C), compounds containing O–C=O accounted for the highest proportion in the evolved gas (55%). Over 350 °C, the production of C=C, –OH, and –C6H5 compounds gradually increased; but little was found of compounds containing O–C=O. Above 550 °C, as thermal chemical reaction involving oxygen-containing groups enhanced, compounds containing O–C=O and –OH tended to disappear, and an increasing amount of macromolecular polycyclic aromatic hydrocarbon was formed. Finally, the thermal transformation pathways of the oxygen and carbon-containing compounds were proposed.

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A study on co-pyrolysis of bagasse and sewage sludge using TG-FTIR and Py-GC/MS

Cited by 189 publications

References 38 publications

Pyrolysis dynamics of two medical plastic wastes: Drivers, behaviors, evolved gases, reaction mechanisms, and pathways

Pyrolysis dynamics of two medical plastic wastes: Drivers, behaviors, evolved gases, reaction mechanisms, and pathways

Study on combustion and emission characteristics of chars from low-temperature and fast pyrolysis of coals with TG-MS

Thermal Transformation of Carbon and Oxygen-Containing Organic Compounds in Sewage Sludge During Pyrolysis Treatment

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