Based on the analysis of long-chain normal paraffin selective isomerization reaction mechanism, a new molecular sieve LKZ with TON structure has been successfully synthesized and the noble metal catalyst WSI prepared with the modified molecular sieve.

Five intermediates for preparing long chain n-alkylphenol gemini surfactants, bis(2-hydroxy-5-n- alkylphenyl)methanes, were synthesized from fatty acid, phenol, and paraformaldehyde through Friedel- Crafts acylation, esterification, Fries rearrangement, Huang Minlon reduction, and condensation, and their molecular structures were confirmed by NMR, IR spectra and elemental analysis.

Some factors affecting the p-n-alkylphenols yield such as the catalyst,solvent,mole ratio of reactants,and r.

The quantitative relation between the surface tension and the number of carbon atoms of normal paraffin hydrocarbons at different temperature are studied systematically in this paper.

The degradation ability and uptake modes of Long-chain alkane-degrading bacteria were investigated.

Nano-sized Beta zeolite was successfully synthesized,its properties were analyzed,and its performance in the hydrocracking of long-chain alkane was investigated.