September 30, 2013

CAS databases provide millions of journal article references from more than 10,000 major scientific journals worldwide, patent and patent family references from 63 patent authorities around the world, and other reputable web sources.

The following patent record is from the CAplusSM database.

CAPLUS COPYRIGHT 2013 ACS

Patent Number: US 8502001
Title: Production of alcohol from carbonaceous feedstock
Inventor(s): Daniel, Berian John; Gracey, Benjamin Patrick
Patent Assignee(s): BP P.L.C., UK
Source: PCT Int. Appl., 35pp. CODEN: PIXXD2
Language: English

Abstract:
The invention relates to the process for conversion of ethanoic acid into ethanol characterized by the following steps, (a) introducing ethanoic acid and H2 into a primary hydrogenation unit in the presence of a precious metal-based catalyst to produce ethanol and Et ethanoate, (b) introducing Et ethanoate, from step (a), together with H2, into a secondary hydrogenation unit in the presence of a copper-based catalyst to produce ethanol, and (c) recovering ethanol from step (b).  Thus, in the primary reactor H2 and ethanoic acid with a molar ratio of 10/1 was passed over the palladium-silver-rhenium-iron catalyst at 230° and 2.0 MPa with a GHSV of 4343 h-1 to give a product showing conversion of ethanoic acid to Et groups recoverable as ethanol was 41.9 %, of which 19.7 % was as Et ethanoate, 21.6 % ethanol, 0.4 % ethanal and 0.2 % di-Et ether and the total conversion of ethanoic acid to products was 44.7 %, the selectivity of ethanoic acid to Et groups recoverable as ethanol was 93.8 %; in the secondary reactor H2 and Et ethanoate with a molar ratio of 10/1 was passed over the copper-based catalyst at 200° and 5.0 MPa with a GHSV of 4491 h-1, the conversion of Et ethanoate to Etgroups recoverable as ethanol was 69.5 %, the selectivity of Et ethanoate to Et groups recoverable as ethanol was 99.9%.

Please note:  Abstracts and Titles for patent records in CAplus are routinely enhanced to better describe the claimed invention.

 View the full-text here.

Recent News

   
    June 30, 2014 | CHEMCATS on STN Enhanced with
    New Search and Display Fields and More Frequent
    Updates
    
    June 18, 2014
| SciFinder and ChemDraw Software
    Connection Now Available to Customers

    May 28, 2014 | CAS REGISTRY BLAST Upgrade
    Improves Search Capabilities and Results Ranking
   
                                                                     More News >> 

 Media Contact

 Name: Rhonda Ross
 Phone: 614-447-3624                                       
 Email: cas-pr@cas.org