Multi-scale sustainability assessments for biomass-based and coal-based fuels in China

Man, Yi; Xiao, Honghua; Cai, Wei; Yang, Siyu

doi:10.1016/j.scitotenv.2017.05.006

Cited by 24 publications

(7 citation statements)

References 26 publications

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“…China is rich in coal resources, and coal remains a basic energy source there [1,2,3], securing it a significant position in the national economy. China’s coal production is mainly located in the northern China centred on Shanxi Province; in the eastern China centred on Shandong Province and Huai River; in south-western China centred on Guizhou Province; and, in north-western and north-eastern China.…”

Section: Introductionmentioning

confidence: 99%

Spatial Characteristics of Heavy Metals in Street Dust of Coal Railway Transportation Hubs: A Case Study in Yuanping, China

Liao

2018

IJERPH

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Coal is a vital basic energy source in China, and rail serving is its major mode of transportation. Heavy metals in street dust surrounding the coal railway do harm to the environment and pose a potential risk to human health. This paper aims to identify the effects of coal transportation hubs on heavy metals in street dust. The geoaccumulation index and ecological risk index were used to assess the contamination levels of the following elements in Yuanping, Shanxi: arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), mercury (Hg), nickel (Ni), lead (Pb), and zinc (Zn). The levels of contamination of these heavy metals in soils were compared to those in street dust, and the difference between the railway’s and mining’s impacts on dust’s heavy-metal concentrations was explored. The results indicated that Cr and Pb in street dust were mainly affected by coal railway transportation, and the interaction effect of coal railway transportation and mining was greater than either of them alone. A potential control and prevention zone for Cr and Pb extending 1 km to both sides of the railway was identified. This work proves that coal railway transportation has certain effect on heavy metals in street dust and provides a scientific approach for future environmental impact assessments of coal transportation via railway.

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Section: Introductionmentioning

confidence: 99%

Spatial Characteristics of Heavy Metals in Street Dust of Coal Railway Transportation Hubs: A Case Study in Yuanping, China

Liao

2018

IJERPH

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“…PAA5 (8 mg/mL PPP antibacterial agent) preparation expenditures at the industrial scale are divided into three categories: raw material expenditures (RMEx), fixed capital expenditures (FCEx), and operating expenditures (OpEx). , The fixed capital investment includes the total purchase cost of all equipment, maintenance, and depreciation costs, which is typically estimated at 30% of the total expenditure (ToEx) based on market research. The total operating expenditures include operating labor, electricity, plant management, contingency, and marketing expenditures, with electricity expenditure accounting for 20% of the OpEx.…”

Section: Resultsmentioning

confidence: 99%

High-Value Utilization of Polyphenol Aromatic Antimicrobial Agents Extracted from Pineapple Peel Waste

Zhou

Huma

Tan

2023

ACS Food Sci. Technol.

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Plant polyphenols' antibacterial capabilities are just beginning to be applied in the environment. In this study, solvent recovery and concentration techniques were used to achieve zero-waste extraction of pineapple peel polyphenol (PPP) powder on an industrial scale. For environmental sterilization, PPP antibacterial agents (PAAs) were created. Their physicochemical and antibacterial qualities were examined, and technical and financial analysis was done. The results showed that (1) among the major PPP components, protocatechuic acid content was the highest (48.90 mg/L), followed by quercetin dihydrate (17.56 mg/L); (2) PAA sprays passed the tests for physicochemical properties like pH and heat resistance; (3) at the 8 mg/mL concentration, PAA achieved 100% bacterial inhibition below 40 °C; and (4) the production cost of 8 mg/mL PAA spray was only $273.41/t at 100,000 t industrial scale. These findings might offer an application prospect in the development of renewable bacteriocins from fruit and vegetable waste materials.

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“…The price equivalent of F-T diesel from coal is lower than the average crude oil price for the year of study in [11]. Reducing coal consumption, CO 2 emissions, and wastewater should be the most pressing issues explored in coal-to-liquid research [12]. Compared with petroleumbased diesel, F-T diesel has a higher H/C ratio, cetane number, and a lower sulfur content, and aromatic content; therefore, the combustion delay period of the engine can be shortened when F-T diesel is combusted in the cylinder, and the combustion temperature can be reduced at a certain extent to achieve low-temperature combustion.…”

Section: Introductionmentioning

confidence: 99%

Effect of Pilot Injection Strategy on Performance of Diesel Engine under Ethanol/F-T Diesel Dual-Fuel Combustion Mode

Yang,

Chen,

Liu

et al. 2023

Processes

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To reduce emissions and save energy, alternative fuel and dual-fuel mode have been widely applied in the field of diesel engines. The pilot injection has potential to reduce engine vibration noise and pollutant emissions. The effects of a diesel fuel pilot injection strategy on the performance of an ethanol/F-T diesel dual-fuel engine were experimentally investigated on a four-cylinder four-stroke common rail diesel engine modified with an ethanol injection system. The results indicate that the variation in the combustion characteristic parameters with pilot injection timing is nonlinear and the difference is small, while soot, NOx, and CO tend to decrease, with an increase in pilot injection timing. With the increase in pilot injection amount, pmax, combustion duration, CO and soot increased; pmax phase and CA50 were closer to TDC; HRRmax and the ignition delay period decreased. The BSFC tends to increase with the increase in pilot injection timing and the increase in pilot injection amount, while the BTE shows the opposite trend. The value and the variation range of COVpmax are small. The effect of the pilot injection amount on ethanol/F-T diesel dual-fuel engine is more significant. The research presented in this paper can provide reference directions for the formulation of a fuel injection strategy of ethanol/F-T diesel dual-fuel combustion mode to reduce NOx without worsening the combustion process and presenting an insufficient fuel economy.

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Multi-scale sustainability assessments for biomass-based and coal-based fuels in China

Cited by 24 publications

References 26 publications

Spatial Characteristics of Heavy Metals in Street Dust of Coal Railway Transportation Hubs: A Case Study in Yuanping, China

Spatial Characteristics of Heavy Metals in Street Dust of Coal Railway Transportation Hubs: A Case Study in Yuanping, China

High-Value Utilization of Polyphenol Aromatic Antimicrobial Agents Extracted from Pineapple Peel Waste

Effect of Pilot Injection Strategy on Performance of Diesel Engine under Ethanol/F-T Diesel Dual-Fuel Combustion Mode

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