One Question per Day: Methanol Technology Discussion Edition 20180705
Thread Content
This post was last edited by Small and on 2018-7-5 12:27. Summary: What are the requirements for raw coal in Texaco’s water-coal slurry gasification process? The raw coal required is young bituminous coal, possessing characteristics such as a low ash fusion point, low ash content, good viscosity-temperature properties, high calorific value, good reactivity, good slurry-forming ability, and good grindability. At the same time, raw coal should not be piled up exposed for long periods of time, to avoid slow oxidation, which can reduce its hardness, decrease its activity, and lower the pulp concentration. Gasification requires that water-coal slurry have good stability and not settle easily ； Good fluidity, low apparent viscosity, easy to pump ； Concentration facilitates gasification ； Appropriate particle size distribution ； Appropriate pH value.
The raw coal required is young bituminous coal, possessing characteristics such as a low ash fusion point, low ash content, good viscosity-temperature properties, high calorific value, good reactivity, good slurry-forming ability, and good grindability. At the same time, raw coal should not be piled up exposed for long periods of time, to avoid slow oxidation, which can reduce its hardness, decrease its activity, and lower the pulp concentration. Gasification requires that water-coal slurry have good stability and not settle easily ； Good fluidity, low apparent viscosity, easy to pump ； A lower concentration is favorable for gasification ； Appropriate particle size distribution ； Appropriate pH value.