We have reported the study of methanol/AOT/n-heptane reverse micellar aggregates using Fourier Transform Infrared (FTIR) spectroscopy. We have divided our whole work into two parts. In the first part we have studied the structural properties of Aerosol OT (AOT) reverse micelles by monitoring the changes in the symmetrical sulfonate stretching region (1000-1100 cm(-1)), asymmetrical sulfonate st...

There is growing interest in using biodiesel in place of or in blends with petrodiesel in diesel engines; however, biodiesel oxidation chemistry is complicated to directly model and existing surrogate kinetic models are very large, making them computationally expensive. The present study describes a method for predicting the ignition behavior of blends of n-heptane and methyl butanoate, fuels w...

In this study, microemulsions of the chiral surfactant polysodium N-undecenoyl-D-valinate (poly-D-SUV) was utilized for enantiomeric separation by investigating two approaches using polymeric chiral surfactant in microemulsion electrokinetic chromatography (MEEKC). In the first approach, poly-D-SUV was used as an emulsifier surfactant along with 1-butanol and n-heptane. Enantioseparation of ani...

Accurate analysis of the main chemical components oil-bearing sludge is an important prerequisite for effective soil remediation and resource reuse. However, precise extract difficult to achieve because mutual interference saturates, aromatics, resins, collectively called SAR, asphaltene that are introduced during chloroform extraction. In this study, SAR was efficiently extracted using n-hepta...

As a favorably clean fuel, syngas (synthesis gas) production has been the focus of concern in past decades. Substantial literatures reported the syngas production by various catalytic reforming reactions particularly in methane or ethanol reforming. Among the developed catalysts in these reforming processes, Ni-based catalysts from hydrotalcite-like compounds (HTLcs) precursors have drawn consi...

ion from 1-hexene, changes in reactions involving 1-hexene also affect the prediction of 1,3-butadiene. For example, the predicted peak concentration of 1,3-butadiene increases by 13% of the MPC due to a higher concentration profile of 1-hexene after a slower 1-hexene thermal decomposition reaction (using the generic rate of reaction 1 in Table 1) is selected. 1-Butylene has an important effect...

The influence of the substituent at the C2 position on the hydrogen-bonding patterns is compared for a series of five related compounds, namely (±)-3-exo,6-exo-dibromo-5-endo-hydroxy-3-endo-nitrobicyclo[2.2.1]heptane-2-exo-carbonitrile, C(8)H(8)Br(2)N(2)O(3), (II), (±)-3-exo,6-exo-dibromo-6-endo-nitro-5-exo-phenylbicyclo[2.2.1]heptan-2-endo-ol, C(13)H(13)Br(2)NO(3), (III), (±)-methyl 3-exo,6-ex...

The enzyme immobilization has been adopted to enhance the activity and stability of enzymes in non-aqueous enzymatic catalysis. However, the activation and stabilization mechanism has been poorly understood on experiments. Thus, we used molecular dynamics simulation to study the adsorption of α-chymotrypsin (α-ChT) on carbon nanotube (CNT) in aqueous solution and heptane media. The results indi...

In spinach chloroplasts which have been shaken with n-heptane, photophosphorylation coupled to the reduction of nicotinamide adenine dinucleotide phosphate is inhibited about 95% while the photoreduction of NADP+ (and ferricyanide) is stimulated as much as 50%. Photophosphorylation catalyzed by phenazine methosulfate, however, is inhibited only 50%. These data are interpreted to indicate that t...

Asphaltenes and insoluble fractions of vacuum residues (VRs) of two Indian crude oils (viz. Heera and Jodhpur) of different specific gravity were obtained by precipitation of VRs in n-hexane, n-heptane, and ethyl acetate, and also ' by subsequent reprecipitation of n-heptane and ethyl acetate soluble fractions by n-pentane. The effect of various solvents on average molecular structure of asphal...