Unconventional petroleum ores have been considered to be an important part of petroleum
resources and an important alternative source of chemicals and energy supply. Extremely …

With the depletion of conventional oil resources, waxy crude oil has become a focus of
development. Wax deposition is prone to occur in crude oil at low temperatures, and can …

Waxy crude oil has become a crucial unconventional oil alternative owing to the depleting
conventional oil resources. However, ascertaining flow assurance in a waxy crude oil …

The research on the flowability of waxy oil has spanned more than a century and is still
attracting much attention. How to improve the flowability of waxy oil to ensure safe and …

The alkali-catalyzed alcoholysis of polyethylene vinyl acetate (EVA) was used to obtain the
product ethylene-vinyl alcohol copolymer (EVAL), and the grafting product poly (ethylene …

Ethylene vinyl acetate (EVA) copolymers are widely employed as pour point depressants to
enhance the flow properties of crude oil. However, EVA copolymers have limitations that …

The addition of pour point depressants (PPDs) represents the most direct and efficient
approach for improving the cold-flow properties of diesel. Nevertheless, the high doses of …

Both polymeric pour point depressants (PPDs) and asphaltenes can improve the flowability
of waxy oils. However, the effect of polymeric PPDs together with asphaltenes on the …

Depressor additives, an important class of functional polymers widely used in
petrochemistry, are discussed. The consideration is based on the comparison of the …

Adding more biodiesel in petrochemical diesel is one of the effective methods to alleviate
the global petrochemical energy shortage, but the high-proportional biodiesel-diesel blends …