Thermogravimetric analysis of the co-combustion of residual petrochemical sludge and municipal sewage sludge

Li, Jinping; Hu, Jieqiong; Wang, Teng; Gan, Jianying; Xie, Junpu; Shui, Yahui; Liu, Jingxin; Xue, Yongjie

doi:10.1016/j.tca.2019.01.014

Cited by 38 publications

(8 citation statements)

References 28 publications

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“…The CLS, as well as CLS and PWS pellet samples, were found to contain a mean percentage of 28.3% of C, 4.991% H, 5.54% N, and 46.26% of C, 6.15% of H, and 0.25 of N contents, respectively. The composition of C got very high contrast with the previous investigations 21–23,26 . Besides, after the copelletization of CLS and PWS, the result indicates the percentage of C increased, which is one of the most responsible content to increase the HHV of the pellet.…”

Section: Resultscontrasting

confidence: 65%

“…Table 1 shows the characterization of biomass pellet fuel from CLS and PWS where the ratio was 50:50. In the present experiment, volatile matter of the CLS (DC) is found effectively higher (Table 1) than some previous studies, 21–23,25,26 which indicates that sludge can dominate the burning process.…”

Section: Resultscontrasting

confidence: 62%

“…Besides, after the copelletization of CLS and PWS, the result indicates the percentage of C increased, which is one of the most responsible content to increase the HHV of the pellet. CLS ash content is also lower than prior studies, 21–23,25,26 which invoke that the heating value of our CLS is lower 30 . CLS of this study is not potentially be used as fertilizer due to the lower content of N as those of Mtshali et al 31…”

Section: Resultsmentioning

confidence: 50%

See 2 more Smart Citations

Energy conversion from wastewater sewage sludge

Billah

Techato

Taweepreda

2020

Asia-Pacific J Chem Eng

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Natural rubber-based industries in Southern Thailand are generating concentrated latex sewage sludge (CLS), which is commonly managed by landfilling practice that is causing serious environmental hazards. The purpose of this study was to develop a method to produce pellets using CLS and para-wood sawdust as a potential biomass source for energy generation. The process started with dewatering the CLS through a decanter centrifuge. Then a flat die pellet mill was applied for copelletization. Finally, the pellets were investigated to evaluate the higher heating value and toxic heavy metals (Cu, Zn, Cr, As, Cd, and Pb) using proximate-ultimate analysis, fourier transform infrared analysis, scanning electron microscopy, calorific value, thermogravimetric analysis, atomic absorption spectrometer, and inductively coupled plasma optical emission spectroscopy. The results showed that the addition of the parawood sawdust resulted in higher heating value and lower ash content of 3,620 ± 12 kcal/kg and 4.93 ± 0.98%, respectively. Besides, it has increased the carbon content of the pellet from 28.23 to 46.26% highest among all the samples. Furthermore, the method developed in this study is not only environmentally friendly but also economically sound than the earlier management of CLS.

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Section: Resultscontrasting

confidence: 65%

Section: Resultscontrasting

confidence: 62%

Section: Resultsmentioning

confidence: 50%

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Energy conversion from wastewater sewage sludge

Billah

Techato

Taweepreda

2020

Asia-Pacific J Chem Eng

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“…Therefore, obtaining fuel characteristics via the thermogravimetric (TG) method is becoming increasingly common. Li et al [7] and Peng et al [8]obtained the devolatilisation index, ignition index, burn‐out characteristics and comprehensive combustion indices of samples by TG experiments, and then evaluated their performance through the indices to determine the optimal operating conditions. Chen et al [9] used TG Fourier‐transform infrared spectroscopy to analyse the combustion characteristics in the co‐firing of sewage sludge (SS) and a mushroom matrix and the release of N‐ and S‐containing gases.…”

Section: Introductionmentioning

confidence: 99%

Synergistic effects of co‐combustion of sewage sludge and corn stalk and the resulting gas emission characteristics

Guo

Han

Wang

et al. 2020

IET Renewable Power Generation

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Increasing discharge of sewage sludge is a threat to the ecological environment, and sludge treatment via combustion is the most feasible alternative. However, the low calorific value and high-water content of raw sludge results in poor firing performance and increases the risk of environmental pollution. Recently, co-combustion has emerged as a more environment-friendly technology. Herein, the combustion behaviours of sewage sludge, corn stalk and their mixture at four heating rates were studied via thermogravimetric experiments. Results yielded the division of weight loss into three stages for corn stalk: dehydration, combustion of volatiles and combustion of fixed carbon; four stages were identified for sewage sludge and the mixture of sludge and stalk: dehydration, combustion of volatiles, combustion of fixed carbon and thermal decomposition of a small amount of minerals. Synergistic analyses found that with a 60% blending ratio of sewage sludge, interaction between the components in the high-temperature range was greatly promoted. Gas emission characteristics showed that CO 2 was the main product during (co-)combustion, while the NO x emissions at low (or high) temperatures for the blend were higher (or lower) than the theoretical values. Temperature had little effect on H 2 S emissions, though it significantly affected SO 2 emissions during co-combustion. V CS gas emissions when CS is burned SS E 60% actual amounts of released gas with sludge blending ratios of 60% SS C 60% theoretical amounts of released gas with sludge blending ratios of 60%

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“…The ignition index (D i ), flammability index (D f ) and combustibility index (S) are commonly used to evaluate the combustion performance of different solid materials [36,37] :…”

Section: Characterizations Of Combustion Performancementioning

confidence: 99%

Assessment of micro‐scale thermal behaviors and combustion performance of organic fireproof plugging material in air atmosphere

Zhang¹,

Huang

Luo

et al. 2022

Vinyl Additive Technology

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Organic fireproof plugging material (OFPM) has excellent flame retardance and is widely used in construction cable holes. In order to study the micro‐scale thermal behaviors and combustion performance of OFPM, thermogravimetric experiments were performed at five heating rates of 5, 10, 20, 40 and 60 K/min in air atmosphere. The results showed that polychloroprene, China clay and carbonate in OFPM were involved in the whole degradation process, which included four stages. In the first stage, polychloroprene was decomposed into the intermediate and HCl. Subsequently, the intermediate participated in the nonoxidative pyrolysis and combustion process in the second stage. The char generated from pyrolysis continued to burn completely, which can explain the complex process involving multiple peaks in this stage. The decomposition of China clay into metakaolin and H2O was responsible for third stage. The fourth stage was assigned to the thermal decomposition of carbonate. In addition, Shuffled Complex Evolution algorithm was used to optimize the kinetic parameters for the simplified four‐stage reaction scheme. The accuracy of the optimized kinetic parameters was verified by the comparison of experimental data at the extra heating rates. Finally, the combustion performance indices including ignition index, flammability index and comprehensive combustion index for the major components were calculated to evaluate the flame retardance of OFPM.

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Thermogravimetric analysis of the co-combustion of residual petrochemical sludge and municipal sewage sludge

Cited by 38 publications

References 28 publications

Energy conversion from wastewater sewage sludge

Energy conversion from wastewater sewage sludge

Synergistic effects of co‐combustion of sewage sludge and corn stalk and the resulting gas emission characteristics

Assessment of micro‐scale thermal behaviors and combustion performance of organic fireproof plugging material in air atmosphere

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