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Physical Properties of Individual Groundwater Chemicals
Published in John H. Montgomery, Thomas Roy Crompton, Environmental Chemicals Desk Reference, 2017
John H. Montgomery, Thomas Roy Crompton
Biological. Decane may biodegrade in two ways. The first is the formation of decyl hydroperoxide, which decomposes to 1-decanol, followed by oxidation to decanoic acid. The other pathway involves dehydrogenation to 1-decene, which may react with water, giving 1-decanol (Dugan, 1972). Microorganisms can oxidize alkanes under aerobic conditions (Singer and Finnerty, 1984). The most common degradative pathway involves the oxidation of the terminal methyl group, forming the corresponding alcohol (1-decanol). The alcohol may undergo a series of dehydrogenation steps, forming decanal, followed by oxidation, forming decanoic acid. The fatty acid may then be metabolized by β-oxidation to form the mineralization products, carbon dioxide and water (Singer and Finnerty, 1984). Hou (1982) reported 1-decanol and 1,10-decanediol as degradation products by the microorganism Corynebacterium.
Comparative analysis on the effect of 1-decanol and di-n-butyl ether as additive with diesel/LDPE blends in compression ignition engine
Published in Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2020
Rajesh Adhinarayanan, Aravindh Ramakrishnan, Gopal Kaliyaperumal, MelvinVíctor De Poures, Rajesh Kumar Babu, Damodharan Dillikannan
Higher alcohols have distinctive advantages like higher cetane number and energy density, than lower alcohols (viz., methanol and ethanol) and can be an excellent alternative fuel for diesel locomotives (De Poures et al. 2017). Extensive studies on higher alcohols like butanol (Ashok et al. 2019d; Damodharan et al. 2017), pentanol (Damodharan et al. 2018c; Nanthagopal et al. 2018b), hexanol (De Poures et al. 2017; Ramesh et al. 2019) and octanol (Ashok et al. 2019a; De Poures et al. 2019) by various researchers divulge their suitability in diesel engines. On the other hand, only a few publications are available to establish the suitability of 1-decanol in diesel engine applications. Hence this work tries to understand the effects of 1-decanol on different engine characteristics.1-decanol is a straight-chain, ten carbon alcohol with the chemical formula C10H22O and can be produced from lignocellulosic biomass. The properties of 1-decanol is similar to that of diesel due to their high carbon rating, which makes them a potential candidate as a fuel for diesel engine applications. (Nanthagopal et al. 2019) reported the effect of decanol addition to diesel/biodiesel blends on the different engine characteristics. The study revealed that increasing decanol concentration in the blends had improved the engine performance. On the other hand, NOx emission escalates, while smoke, HC, and CO emissions found to decrease. (Ashok et al. 2019b) in another study compared the hexanol and decanol addition to diesel/biodiesel blends on performance and emission characteristics of a diesel engine. Results indicated that brake thermal efficiency of the engine improved with decanol addition while NOx and smoke emissions were found to be lower than hexanol blends. Slightly higher HC and CO emissions were observed with decanol blend. (Nanthagopal et al. 2020) reviewed the suitability of various alcohols ranging from single carbon methanol to twenty carbon phytol in compression ignition engines. They concluded that among C1-C10 alcohols, decanol could be a potential alternative fuel for diesel due to their excellent chemical properties similar to diesel and also their production pathway from lignocellulosic biomass. (Balan et al. 2019) utilized decanol up to 20% by vol. in the step of 10% by vol., along with jatropha biodiesel to study the engine emission behavior. They found that all the regulated emissions reduced with a higher fraction of decanol. More importantly, 7.4% and 4.4% of simultaneous reduction of NOx and smoke emission were achieved. (Devarajan et al. 2020) blended 10% by vol. of n-decanol and di-tetra-butyl-peroxide separately with diesel/papaya seed biodiesel to form two ternary blends and tested the modified fuel in a single-cylinder diesel engine. They reported that both the oxygenated blends potentially reduced smoke, HC, and CO emissions against diesel operation, where NOx emission was on the higher side. BTE for both the oxygenated fuel found to be lower than that of diesel. (Heuser et al. 2013b) suggested from his experiments that 1-decanol could be an excellent fuel in diesel engines as its physical properties are closer to diesel. 1-decanol was beneficial in reducing particulate matter significantly with equal NOx levels.