Study on the pyrolysis behavior of coal-water slurry and coal-oil-water slurry

This paper presented a method of a new kind of triplex mixture system of oil-water-coal slurry preparation.Triplex synfuel containing gasoline, water and coal was prepared using nonionic surfactant. Tween 80 was used as emulsifying agent. The ratio of water, gasoline and coal was optimized. The optimum prescription of oil-water-coal slurry was obtained by means of orthogonal experiment. Results showed that stable triplex mixture systems were prepared with the ratio of the components of coal (C) to water (W) to oil (O) by weight was C:W:O=45%:30%:25% when 0.2% Tween 80 were added into the system. Rheological properties of oil-water-coal slurry were also investigated.

Download Full-text

Experimental investigation and demonstration of pilot-scale combustion of oil-water emulsions and coal-water slurry with pronounced water contents at elevated temperatures with the use of pure oxygen

Fuel ◽

10.1016/j.fuel.2020.118692 ◽

2020 ◽

Vol 282 ◽

pp. 118692 ◽

Cited By ~ 4

Author(s):

Christian Gaber ◽

Philipp Wachter ◽

Martin Demuth ◽

Christoph Hochenauer

Keyword(s):

Experimental Investigation ◽

Elevated Temperatures ◽

Pilot Scale ◽

Pure Oxygen ◽

Water Slurry ◽

Coal Water Slurry ◽

Oil Water ◽

Water Contents

Download Full-text

Numerical Simulation of Coal Oil Water Slurry Gasification Process in New-Type Coal Water Slurry Gasifier

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.229-231.2501 ◽

2012 ◽

Vol 229-231 ◽

pp. 2501-2505 ◽

Cited By ~ 1

Author(s):

Hai Long Yu ◽

Feng Kun Wang ◽

Gui Fang Zhang ◽

Jian Zhong Liu

Keyword(s):

Numerical Simulation ◽

Simulation Method ◽

Water Slurry ◽

Gasification Process ◽

Coal Water Slurry ◽

New Type ◽

The Common ◽

Oil Water ◽

Dissolution Ratio ◽

Effective Component

The gasification process of coal oil water (COW) slurry in new-type coal water slurry(CWS) gasification furnace was studied with numerical simulation method. The temperature and concentration fields were obtained for the gasification furnace. The simulated results showed that the gasification effect of the new-type coal water slurry gasification is better than the common coal water slurry gasification. In the new-type gasification furnace, the average temperature is slightly increased and the carbon translative ratio is increased by 1.81%. The effective component (CO+H2) in coal gas at the outlet of the furnace is increased by 10.58%, and the concentration of CO2and H2O is greatly decreased. The H2O dissolution ratio is greatly increased and the gasification effect is obviously better that that of the common coal water slurry.

Download Full-text