Influence of slow pyrolysis on physical properties of biomass powders;

Due to its low energy density and high oxygen content,biomass is often pretreated by slow pyrolysis to form semi-char which is then fed to the entrained flow gasification reactor.

The purpose of slow pyrolysis is to solve the problems of low energy density of biomass,the difficulty of conveying biomass and the high tar content during the entrained-flow biomass gasification process;meanwhile,it can increase the higher heating value of syngas.

Improved land-treatment-system with slow rate for sewage and its test;

Studies on improved experiment of the slow rate land treatment system;

For the defect of low hydraulic load of traditional slow rate land treatment system , an improved method was introduced in this paper, and disposal effect of main contaminations of sewage was analyzed .

A new technique for picking the first S-wave arrival from dipole shear wave log in slow formation;

Since the nature of this slow speed wave arrival was not distinct, these slow speed waves were named as W 1, W 2 and W 3 respectively (where W stands for wave), according to their apparent velocities ranging form high to low.