The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 03, 2009
Filed:
May. 29, 2003
Stuart Corr, Warrington, GB;
Paul A. Dowdle, St Helens, GB;
Robert E. Low, Northwich, GB;
James David Morrison, Northwich, GB;
Frederick Thomas Murphy, Frodsham, GB;
Stuart Corr, Warrington, GB;
Paul A. Dowdle, St Helens, GB;
Robert E. Low, Northwich, GB;
James David Morrison, Northwich, GB;
Frederick Thomas Murphy, Frodsham, GB;
Ineos Fluor Holdings Limited, Southhampton, GB;
Abstract
A closed-loop biomass extraction apparatus using HFC solvents including an extraction vessel, an evaporator for the solvent, a compressor and a condenser connected in series in a closed loop extraction circuit; a solvent recovery loop constituted by a bypass line; a plurality of flow control valves that are selectively operable for connecting the solvent recovery loop in parallel with the closed loop extraction circuit; and at least one container containing an adsorbent for organic contaminants and a desiccant, the container being connected in the solvent recovery loop to which solvent in the extraction circuit may be supplied through selective operation of the flow control valves whereby solvent used in the extraction circuit may be supplied through the adsorbent and the desiccant.