Potential Use of Organosolv Underflow Tar Lignin as a Petrochemical Refinery Feed

摘要

It appears that underflow tar from an acetone-ethanol-ammonia organosolv pulping run is potentially useful as a low percentage additive to petroleum refinery feed. Although this material has a slightly lower heating value and higher viscosity than do many crude oils, it is a relatively low distilling mixture, based on compound volatility in gas chromatographic tests. Although the high lignin tar has some mutagenic activity, as measured with the Salmonella histidine reversion, or Ames, test procedure, the activity is around two orders of magnitude less than that of coal derived fuel oil. This indicates a potentially lower level of hazard for organosolv tar than for refined coal fuel oil. These findings indicate that those organizations considering the use of an organosolv pulping process should reevaluate final use of the tar in the light of rising petroleum feedstock costs. (ERA citation 05:020318)