Catalyzed Organosolv Delignification of an Indigenous Wood - Partal (Picea morinda)

Partal (Picea morinda) wood in particle size of 0.315 - 1.00 nun was subjected to acid catalyzed organosolv delignification with acetic, formic and propionic acids. The effect of different process variables like concentration of acid, concentration of catalyst and solid-liquor ratio on the yield and quality of delignified products along with the kinetic of the reactions involved was also studied. It was thereafter found that along lower aliphatic organic acids, only acetic and propionic acids could sufficiently delignify this particular species. However. propionic acid had proven to be better of the two. as it gave a good quality product in lesser time (90 minutes) and higher yield (67%). Further. formic acid was not found to be an appropriate medium for delignification of this particular raw material.

TANZIL H USMANI ,MOHAMMAD TAHIR ,SOFIA KHALIQUE ALVI ,MOHAMMAD ALEEM AHMED ,