Supercritical ethylene extraction process for selectively recovering phenolic compounds from bio-crude and/or bio-oil
AssigneeResearch Triangle Institute
InventorsMichael Carpenter, Ofei D. Mante, Joseph Michael Weiner
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Abstract
A supercritical ethylene extraction process for selectively recovering a phenolic compound from bio-crude and/or bio-oil comprises providing a reactor containing bio-crude and/or bio-oil, wherein the reactor has an operating pressure, introducing an ethylene solvent at the operating pressure to the reactor, and using the ethylene solvent at the operating pressure to extract the extracted portion from the feedstock, wherein the extracted portion comprises the selected phenolic compound at a concentration equal to or greater than 70 wt % on a dry basis.
Claims21
A supercritical ethylene extraction process for selectively recovering a phenolic compound from feedstock comprising bio-crude and/or bio-oil, wherein a concentration of the selected phenolic compound in the extracted portion of the feedstock is greater than 70 wt % on a dry basis, the process comprising:
- providing a reactor containing feedstock comprising bio-crude and/or bio-oil, wherein the reactor has an operating pressure,
- introducing an ethylene solvent at the operating pressure to the reactor, and
- using the ethylene solvent at the operating pressure to extract the extracted portion from the feedstock, wherein the extracted portion comprises the selected phenolic compound at a concentration equal to or greater than 70 wt % on a dry basis.
(canceled)
A supercritical ethylene extraction process for selectively recovering a phenolic compound from feedstock comprising bio-crude and/or bio-oil, wherein a concentration of water in the extracted portion of the feedstock is less than 10 wt %, the process comprising:
- providing a reactor containing feedstock comprising bio-crude and/or bio-oil, wherein the reactor has an operating pressure,
- introducing an ethylene solvent at the operating pressure to the reactor, and
- using the ethylene solvent at the operating pressure to extract the extracted portion from the feedstock, wherein the extracted portion comprises water at a concentration less than 10 wt %.
A supercritical ethylene extraction process for selectively recovering a phenolic compound from feedstock comprising bio-crude and/or bio-oil, wherein a moisture content in the extracted portion of the feedstock is about 1.5 to about 5.5 percent moisture, the process comprising:
- providing a reactor containing feedstock comprising bio-crude and/or bio-oil, wherein the reactor has a reactor pressure,
- introducing an ethylene solvent at a solvent pressure to the reactor, and
- using the ethylene solvent at the solvent pressure to extract the extracted portion from the feedstock, wherein the moisture content in the extracted portion is about 1.5 to about 5.5 percent moisture.
Dependencies are inferred from the claim text.