Treatment of materials for the manufacturing of rosin oil, including separation of rosin acid from renewable materials, thermal decarboxylation of rosin acid and separation of rosin oil; custom manufacturing of internals, parts, and components for hydrogenation reactors, decarboxylation reactors, separators and distillation columns; treatment of materials, including pretreating, fractionation, distillation, and refining of wood, oil, renewable energy products and biochemicals; fractionation o...