Effect of organic calcium compounds on combustion characteristics of rice husk, sewage sludge, and bituminous coal: Thermogravimetric investigation

Zhang, Lihui; Duan, Feng; Huang, Yaji

doi:10.1016/j.biortech.2015.01.041

Cited by 29 publications

(24 citation statements)

References 33 publications

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“…ability to simultaneously eliminate the pollutants and recycle the energy Zhang et al, 2015). AR materials contain a large amount of N, which is derived from the fermentation substrate.…”

Section: Introductionmentioning

confidence: 99%

Combustion of hazardous biological waste derived from the fermentation of antibiotics using TG–FTIR and Py–GC/MS techniques

Shi-jun

Zhu

Wang

et al. 2015

Bioresource Technology

119

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“…ability to simultaneously eliminate the pollutants and recycle the energy Zhang et al, 2015). AR materials contain a large amount of N, which is derived from the fermentation substrate.…”

Section: Introductionmentioning

confidence: 99%

Combustion of hazardous biological waste derived from the fermentation of antibiotics using TG–FTIR and Py–GC/MS techniques

Shi-jun

Zhu

Wang

et al. 2015

Bioresource Technology

119

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“…The inert metal oxide MgO in CMA is evenly distributed among the CaO particles. Magnesium oxide is generally unreactive toward CO 2 , and thus acts as a skeleton support for the calcium sorbent . Dolomite has a composition similar to that of CMA; however, during acetification using acetic acid, the pore characteristics of CMA are better than those of dolomite.…”

Section: Introductionmentioning

confidence: 99%

“…Affected by the rise in natural gas prices, the market price of acetic acid varies within US $1200 and $1600 per ton in different countries of the world, according to 2015 market research . Recently, modified calcium magnesium acetate (MCMA) was synthesized using industrial spent acetic acid, which has significantly decreased its price . However, it is still more expensive than the conventional calcium absorbent.…”

Section: Introductionmentioning

confidence: 99%

“…Magnesium oxide is generally unreactive toward CO 2 , and thus acts as a skeleton support for the calcium sorbent. 16,17 Dolomite has a composition similar to that of CMA; however, during acetification using acetic acid, the pore characteristics of CMA are better than those of dolomite. However, the commercial analytically pure CMA is expensive due to the relatively high price of acetic acid.…”

Section: Introductionmentioning

confidence: 99%

“…18 Recently, modified calcium magnesium acetate (MCMA) was synthesized using industrial spent acetic acid, which has significantly decreased its price. 17,19 However, it is still more expensive than the conventional calcium absorbent. Directly discarding the spent CMA from the Ca-L process also increases the operating cost.…”

Section: Introductionmentioning

confidence: 99%

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Sulfation, pore, and fractal properties of hydrated spent calcium magnesium acetate from calcium‐based looping

Zhang

Duan

2019

Greenhouse Gases

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Hydration of the spent calcium‐based sorbent from calcium‐looping can improve its inadequate pore characteristics. The hydrated sorbent can be used for desulfurization before calcium‐based looping, which decreases the SO2 concentration in the flue gas entering the calcium‐based looping and also decreases the cost of CO2 capture. The effects of hydration time, hydration temperature, and liquid‐solid ratio on the reactivation performance of a hydrated spent calcium‐based sorbent were studied using spent calcium magnesium acetate (CMA) in this study. Fractal analysis based on the pore structure data of the hydrated sorbents was also conducted, and the relationship between the fractal dimension and the desulfurization performance of the hydrated spent sorbents was also investigated. The results showed that the sulfation conversion rate of the hydrated spent CMA decreased slowly at first, and then increased with hydration time. The conversion rate also increased with the hydration temperature but it decreased with the liquid‐solid ratio. The maximum sulfation conversion of the hydrated spent CMA under the optimized conditions was 68.0%, which approached that of fresh CMA. Compared to that of spent CMA, the sulfation conversion increased by 53.3%. The spent CMA consisted mainly of mesopores and macropores. After hydration, the volumes of both types of pores increased. However, the mesopore percentage decreased, while the macropore percentage increased. The hydrated spent CMA had obvious fractal characteristics. There was an optimum range for the fractal dimension of the samples, 2.31 < D < 2.35, at which the sulfation conversion was maximized. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Investigation on thermal behavior and sulfur release characteristics from rice husk and bituminous coal co‐firing under O₂/CO₂ atmosphere

Huang

Zhang

Duan

2015

Asia-Pacific J Chem Eng

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The synergistic interaction of rice husk (RH), Huaibei bituminous coal (HB coal), and their blends was investigated under O 2 /CO 2 combustion condition by thermogravimetric analysis. The RH was blended with HB coal in the range of 20-40 wt% to investigate the co-combustion profile. Meanwhile, a horizontal tube furnace was used to study the sulfur release characteristics of blended fuels under O 2 /CO 2 atmosphere. Results showed that the synergistic interaction between RH and HB coal improved the char catalytic effect and alkali metals melt-induced effect on the decomposition of HB coal. Burnout temperature (T b ) of blended fuels decreases significantly with an increase of RH ratio and oxygen ratio, ignition temperature (T i ) decreases with increases of RH ratio, while there is a minor decrease in T i at higher oxygen ratio. Combustion characteristic indexes of blended fuel increase with an increase of RH ratio and oxygen ratio. The SO 2 peak values decrease with increases of RH ratio, and increase with an increase of oxygen ratio and temperature. However, the mean SO 2 emissions and fuel-S conversions show the inverse trend.

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Effect of organic calcium compounds on combustion characteristics of rice husk, sewage sludge, and bituminous coal: Thermogravimetric investigation

Cited by 29 publications

References 33 publications

Combustion of hazardous biological waste derived from the fermentation of antibiotics using TG–FTIR and Py–GC/MS techniques

Combustion of hazardous biological waste derived from the fermentation of antibiotics using TG–FTIR and Py–GC/MS techniques

Sulfation, pore, and fractal properties of hydrated spent calcium magnesium acetate from calcium‐based looping

Investigation on thermal behavior and sulfur release characteristics from rice husk and bituminous coal co‐firing under O₂/CO₂ atmosphere

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Effect of organic calcium compounds on combustion characteristics of rice husk, sewage sludge, and bituminous coal: Thermogravimetric investigation

Cited by 29 publications

References 33 publications

Combustion of hazardous biological waste derived from the fermentation of antibiotics using TG–FTIR and Py–GC/MS techniques

Combustion of hazardous biological waste derived from the fermentation of antibiotics using TG–FTIR and Py–GC/MS techniques

Sulfation, pore, and fractal properties of hydrated spent calcium magnesium acetate from calcium‐based looping

Investigation on thermal behavior and sulfur release characteristics from rice husk and bituminous coal co‐firing under O2/CO2 atmosphere

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Investigation on thermal behavior and sulfur release characteristics from rice husk and bituminous coal co‐firing under O₂/CO₂ atmosphere