US 11,781,077 B2
Disaggregation of biomass pyrolysis oil
Sanjeev Gajjela, Didcot (GB); Ralph Phillips Overend, Ottawa (CA); Zhiheng Wu, Beeston (GB); Zsuzsa Ajsa Mayer, Oxfordshire (GB); Haonan Wu, Nottinghamshire (GB); and Jose Antonio Medrano Catalan, Didcot (GB)
Assigned to ALDER ENERGY, LLC, Boulder, CO (US)
Filed by ALDER ENERGY, LLC, Charleston, SC (US)
Filed on Feb. 9, 2022, as Appl. No. 17/668,359.
Application 17/668,359 is a continuation of application No. 16/341,766, granted, now 11,421,165, previously published as PCT/GB2016/051735, filed on Jun. 10, 2016.
Claims priority of application No. 1511106 (GB), filed on Jun. 24, 2015.
Prior Publication US 2022/0389333 A1, Dec. 8, 2022
Int. Cl. C10G 53/14 (2006.01); B01D 3/14 (2006.01); B01D 3/34 (2006.01)
CPC C10G 53/14 (2013.01) [B01D 3/14 (2013.01); B01D 3/34 (2013.01); C10G 2300/1014 (2013.01); C10G 2300/44 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A process for fractionating pyrolysis oil, the process comprising:
contacting a feedstock comprising pyrolysis oil with an oxidizing agent to oxidize components in the pyrolysis oil, thereby yielding an oxidized pyrolysis oil; and
contacting the oxidized pyrolysis oil with an amount of alcohol under conditions effective to yield a mixture comprising:
an organic phase; and
an aqueous phase,
wherein the amount of alcohol is based on an amount of pyrolignin in the pyrolysis oil, and:
a mass ratio of the alcohol to the pyrolignin is in a range of 0.60±0.1, or
the amount of the alcohol to the pyrolignin is 10% to 50% by mass.