Unit process data for lignin extraction in a softwood kraft pulp mill

<p>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. </p><div><br>Resources in this dataset:</div><br><ul><li><p>Resource Title: kraft lignin extraction; from southern bleached softwood kraft, elemental chlorine free (ECF) bleached process; at mill.</p> <p>File Name: kraft lignin extraction; from southern bleached softwood kraft, elemental chlorine free (ECF) bleached process; at mill.zip</p><p>Resource Description: Lignin is extracted via precipitation and acid washing. All flows are production weighted to kraft lignin. The Southern Bleached Softwood Kraft (SBSK) pulp production technologies are an aggregation of those applied in the southern U.S. in 2013. This file also includes a unit process for SBSK pulp production.</p><p>Resource Software Recommended: openLCA ,url: <a href="http://www.openlca.org/">http://www.openlca.org/</a> </p></li></ul><p></p>