This unit process represents the gate-to-gate production of 1 air-dried metric tonne of kraft lignin, coproduced with southern bleached softwood kraft pulp (SBSK), high voltage electricity and unrefined tall oil soap. The pulp is derived from pine or loblolly pine in a kraft pulping process at a mill in the southern United States (U.S.). Lignin is extracted via precipitation and acid washing. All flows are production weighted to kraft lignin. The SBSK pulp production technologies are an aggregation of those applied in the southern U.S. in 2013.
- kraft lignin extraction; from southern bleached softwood kraft, elemental chlorine free (ECF) bleached process; at millzip
Lignin is extracted via precipitation and acid washing. All flows are...
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Southeastern United States
Ag Data Commons
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January 1, 2013 to December 31, 2015
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