My sin fuel title comes from this piece in Time.
The coal can look and burn like regular coal. The IRS rule for transforming coal into synfuel--and getting the tax credit--requires only that the substance be chemically altered in some way. The alchemy that satisfies the IRS is a simple process: some plants spray newly mined coal with diesel fuel, pine-tar resin, limestone, acid or other substances--a practice that industry critics call "spray and pray." Other operators mix coal-mining waste with chemicals, coat it with latex and blend it with untreated coal to form briquettes.I remain deeply suspicious of stuff that will expand our gargantuan greenhouse gas generation capability.
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