For coal mining, direct coal liquefaction, indirect liquefaction, etc., what is the approximate water consumption per unit of coal?
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The academician said that coal mining in Ordos consumes too much water, and suggested that **decision-making bodies impose restrictions on coal development. I’d like to ask, just how much water is consumed in coal production?
It consumes a lot of water; the coal mining machines need to be continuously flushed with water, and water is also used to inject into the coal in order to reduce the accumulation of coal dust gas
The coal miner needs to keep using water for flushing; can this water be reused?
It seems difficult to control the recovery of water injected underground
To produce one ton of oil, direct coal liquefaction at Shenhua’s million-ton scale requires 5.8 tons of water, while indirect coal liquefaction at Yankuang Yulin’s million-ton scale requires around 9.2 tons of water.