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Coal tars, mineral oils, and resins are treated with a mixture of H₂ and CO; for example, water gas, under high temperature and pressure in the presence of MeOH-forming catalysts (except alkali or alkaline earth compounds) alone or used with Mo, W, or Cr, to give organic products. Thus, vaporized tar from brown coal is treated with a mixture containing CO 10% and H₂ 90% at 200 atm. and 450° in the presence of a ZnO catalyst to give a mixture of MeOH and C₆H₆. Another example mentions steel containing Cu or Al as the catalyst.