Method of separating lignin derived compounds from pyrolysis oil

• Main Authors: Weider, Paul Richard, Blackbourn, Robert Lawrence, Wang, Pen-Chung
• Format: Patent
• Language: English
• Published: 05.03.2019
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; APPARATUS SPECIALLY ADAPTED THEREFOR; CHEMISTRY; DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FORPRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS; EDIBLE OILS OR FATS, e.g. MARGARINES, SHORTENINGS, COOKINGOILS; FIRELIGHTERS; FOODS OR FOODSTUFFS; FUELS; FUELS NOT OTHERWISE PROVIDED FOR; HUMAN NECESSITIES; LIQUEFIED PETROLEUM GAS; LUBRICANTS; METALLURGY; NATURAL GAS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF SUCROSE; SUGAR INDUSTRY; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES

A novel method of separating bio oil (pyrolysis oil) into oxygenated rich species and lignin/phenolic based species in a highly efficient manner is provided. Lignin and phenolic fractions can be separated from light oxygenates from bio oil by use of reversible α-hydroxysulfonic acid.