This study explored the feasibility of using waste organic solvents as substitutes for water to prepare coal slurries. The rheological properties of coal-2-propanol slurries were examined and compared with that of coal-water slurry (CWS). The good compatibility between coal particles and 2-propanol …Coal-water slurry offered a wide range of flow behavior from Newtonian at low solid concentrations to shear-thinning with a yield stress at higher concentrations (Logos and Nguyen, 1996), whereas ...

Preparation of coal slurry with organic solvents. Shin YJ 1, Shen YH. Author information. Affiliations. 1 author. 1. Department of Resources Engineering, National Cheng Kung University, Tainan, Taiwan, ROC. ORCIDs linked to this article. Shih Y, 0000-0001-9522-3458 ...Coal-water slurry is prepared in a conventional slurry preparation unit at ambient conditions. It is pumped to the same pressure as that of the liquid CO 2 stream available for slurry preparation. The term liquid CO 2 is used to refer to CO 2 with a liquid-like density, even though the pressure may be above the critical point.

Request PDF | Preparation of coal slurry with organic solvents | In this study, various organic solvents were used to prepare coal slurries and the rheological and thermal properties of coal ...Preparation. To transform the coal ash into a slurry, coal is separated from non-combustable components and can be fractionated by particle size as well.Coal slurry can be transferred by pipeline or with specialized pumps such as a progressive cavity pump to pump the highly abrasive, corrosive and viscous coal slurry. More than 7 billion tons of coal are mined per year (2010), using ...

System and method for the preparation of coal water slurries. ... Disclosed embodiments include a feedstock preparation system that includes a first slurry preparation system that may receive a first portion of a solid fuel to generate a first fuel slurry using the first portion of the solid fuel and a liquid and second slurry preparation ...Figure 1 Process flow chart of coal water slurry preparation In this experiment, the viscosity of coal water slurry is measured by a NDJ-8S rotary viscometer with a coaxial cylinder measuring system. Operation steps: (1) The measured liquid is placed in a beaker or cylindrical container with a diameter of no less than 70mm and no less than 125mm.

The rheological properties of coal-2-propanol slurries were examined and compared with that of coal-water slurry (CWS). The good compatibility between coal particles and 2-propanol resulted in stable particle suspension in slurry which usually exhibit Newtonian behaviour.Impoundment ponds are created as part of the mining process, using the solid rock left after coal extraction. Dams are constructed using the rock and soil, and are generally located at the head of a valley near the coal preparation plant.Some impoundment ponds contain billions of gallons of slurry.