Gas and soot products formed in the pyrolysis of acetylene mixed with methanol, ethanol, isopropanol or n-butanol

Esarte, Claudia; Abián, María; Millera, Ángela; Bilbao, Rafael; Alzueta, María U.

doi:10.1016/j.energy.2011.11.027

Cited by 80 publications

(36 citation statements)

References 52 publications

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“…BSFC increased and brake thermal efficiency (BTE) decreased with the increase of the amount of ethanol. Recently, propanol and butanol isomers become more and more attractive as fuels because they may be produced from renewable resources . Ref.…”

Section: Introductionmentioning

confidence: 99%

Performance and Emission Characteristics of a Diesel Engine Fueled with Alcohol–Diesel Fuel Blends Containing Low Ratio of Alcohols

Liu

et al. 2018

Env Prog and Sustain Energy

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The study is to investigate the effects of diesel–alcohol blends containing low ratio of alcohols on the performance and emissions of a diesel engine. Methanol, ethanol, iso‐propanol, and n‐butanol containing 5% by volume were blended with diesel fuel. Then, these blends and neat diesel fuel were tested in an electronic control high‐pressure common rail turbocharged direct injection (DI) diesel engine working at the speed of 2000 revolutions per minute (rpm) and 2800 rpm at five different loads without any modification in the original engine structure. The results of the blends tests were compared with the results of neat diesel fuel under the same condition. The results revealed that, with the increase of the carbon atom number of alcohol, peak combustion pressure of main injection, cumulative heat release, maximum combustion temperature and brake specific fuel consumption (BSFC) increased for the blends. The combustion duration for the blends became shorter than that of pure diesel. Diesel–alcohol blends containing low ratios of various alcohols can effectively reduce at least 29% of smoke emissions and under one condition the percentage can reach 81%. Additionally, the blends have a slight influence on the oxides of nitrogen (NOx) emissions. The emissions of carbon monoxide (CO) and unburnt hydrocarbon (THC) increased very slightly at low load, but they decreased distinctively at medium and high load. © 2018 American Institute of Chemical Engineers Environ Prog, 38:e13035, 2019

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Section: Introductionmentioning

confidence: 99%

Performance and Emission Characteristics of a Diesel Engine Fueled with Alcohol–Diesel Fuel Blends Containing Low Ratio of Alcohols

Liu

et al. 2018

Env Prog and Sustain Energy

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“…81 In order to isolate the direct effects of fuel molecular structure from those of the combustion phasing, many experimental studies on particulate formation have been conducted under carefully controlled conditions such as laboratory flames, [82][83][84][85][86] shock tubes [87][88][89][90] and flow reactors. [91][92][93] Smoke point tests have been widely used as a metric to determine the sooting tendencies of fuels and involve the measurement of the height at which soot is visibly seen to emerge from the tip of a wick-fed diffusion-type flame; a lower smoke point indicates a higher tendency to form soot. There is consensus that in diffusion flames the tendency of hydrocarbon molecules to form soot increases in the following order: n-alkanes \ isoalkanes \ alkenes \ cycloalkanes \ alkynes \ aromatics.…”

Section: Particulate Mattermentioning

confidence: 99%

An overview of the effects of fuel molecular structure on the combustion and emissions characteristics of compression ignition engines

Hellier

Talibi

Eveleigh

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part D:

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Future fuels for compression ignition engines will be required both to reduce the anthropogenic carbon dioxide emissions from fossil sources and to contribute to the reductions in the exhaust levels of pollutants, such as nitrogen oxides and particulate matter. Via various processes of biological, chemical and physical conversion, feedstocks such as lignocellulosic biomass and photosynthetic micro-organisms will yield a wide variety of potential fuel molecules. Furthermore, modification of the production processes may allow the targeted manufacture of fuels of specific molecular structure. This paper therefore presents an overview of the effects of fuel molecular structure on the combustion and emissions characteristics of compression ignition engines, highlighting in particular the submolecular features common to a variety of potential fuels. An increase in the straight-chain length of the alkyl moiety reduces the duration of ignition delay, and the introduction of double bonds or branching to an alkyl moiety both increase ignition delay. The movement of a double bond towards the centre of an alkyl chain, or the addition of oxygen to a molecule, can both increase and decrease the duration of ignition delay dependent on the overall fuel structure. Nitrogen oxide emissions are primarily influenced by the duration of fuel ignition delay, but in the case of hydrogen and methane pilot-ignited premixed combustion arise only at flame temperatures sufficiently high for thermal production. An increase in aromatic ring number and physical properties such as the fuel boiling point increase particulate matter emissions at constant combustion phasing.

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“…[6][7][8] A few research has been carried out on the isopropanol as an alternative fuel. Lv Xingcai etc.…”

Section: Introductionmentioning

confidence: 99%

Effect of Injection Timing on Performance and Emissions of DI-diesel Engine Fueled with Isopropanol

Liu¹,

Xu²,

Jia³

et al. 2015

Proceedings of the 2015 International Conference on Electrical, Electronics and Mechatronics

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Abstract-Experimental study was conducted to investigate the influence of the injection timing on the performance and exhaust emissions of an electronic control high-pressure common rail turbocharged direct injection diesel engine fueled with isopropanol. Diesel fuels with different amounts (0%, 5%, 10%, 15% and 20% by volume) of isopropanol were used. The results show that the isopropanol addition can significantly improve soot and CO emissions. Under the same injection timing, with the increase of isopropanol blending ratio, combustion duration shortened, brake specific fuel consumption increased, the peak of in-cylinder pressure and heat release rate of pilot-injection combustion decreased, the peak of in-cylinder pressure and heat release rate of main-injection combustion increased, THC and NOx emissions increased. With the injection timing retarded, the center of heat release rate of pilot and main injection combustion delayed, the peak of in-cylinder pressure and heat release rate of former ascended, the latter descended. Brake specific fuel consumption, CO emission, THC emission and soot emission reduced, NOx emissions increased.

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Gas and soot products formed in the pyrolysis of acetylene mixed with methanol, ethanol, isopropanol or n-butanol

Cited by 80 publications

References 52 publications

Performance and Emission Characteristics of a Diesel Engine Fueled with Alcohol–Diesel Fuel Blends Containing Low Ratio of Alcohols

Performance and Emission Characteristics of a Diesel Engine Fueled with Alcohol–Diesel Fuel Blends Containing Low Ratio of Alcohols

An overview of the effects of fuel molecular structure on the combustion and emissions characteristics of compression ignition engines

Effect of Injection Timing on Performance and Emissions of DI-diesel Engine Fueled with Isopropanol

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