Method for removing impurities from a feed liquid

• Main Authors: Gaines, David M, Eisinger, Ronald S
• Format: Patent
• Language: English; French; German
• Published: 14.12.2016
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CRACKING HYDROCARBON OILS; FUELS; LUBRICANTS; METALLURGY; MINERAL WAXES; ORGANIC CHEMISTRY; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; SEPARATION; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR RELEVANT APPARATUS; TRANSPORTING

The present invention relates to a method for regenerating a system for removing impurities from a feed fluid, the feed fluid comprising primarily a hydrocarbon and the method comprising: contacting an oxidized copper-based material and an adsorbent in a single vessel with an inert gas heated to a first temperature above an ambient temperature for removing hydrocarbon adsorbed thereon; adding a reducing agent to the heated inert gas for reducing the copper-based material; increasing a concentration of reducing agent added in the heated inert gas contacting the copper-based material and the adsorbent; heating the inert gas and the reducing agent to a second temperature higher than the first temperature; and contacting the copper-based material and the adsorbent with the inert gas and the reducing agent at the second temperature.