Abstract: The present disclosure provides the use of a biomass-derived aromatic material as a sorbent for naphthenic acid. For example, the biomass-derived aromatic material may be a lignin derivative such as an Organsolv lignin derivative. The present disclosure further provides a method for reducing the amount of naphthenic acid in a substance, said method comprising applying a suitable amount of biomass-derived aromatic sorbent to the substance containing naphthenic acid; and allowing the sorbent to interact with the substance to remove at least a portion of the naphthenic acid from the substance.

Abstract: The present invention provides derivatives of native lignin having certain aliphatic hydroxyl content. Surprisingly, it has been found that consistent and predictable antioxidant activity may be provided by selecting for derivatives of native lignin having certain aliphatic hydroxyl content.

Abstract: The present disclosure relates to processes for recovery of derivatives of native lignin from lignocellulosic feedstocks wherein the derivatives have a certain aliphatic hydroxyl content. Surprisingly, it has been found that stable and predictable antioxidant activity is provided by selecting for derivatives of native lignin having a certain aliphatic hydroxyl content.

Abstract: The present disclosure provides an organosolv biorefining process. The present process comprises treating a lignocellulosic biomass in the presence of a solvent and under certain conditions to separate at least a part of the lignin from the biomass.

Abstract: The present disclosure provides the use of lignin derivatives for remediation of oil discharge such as, for example, crude or refined oil spills. The present disclosure provides methods of remediating oil discharges such as, for example, accidental discharge into a marine environment.