COAL HYDROGENATION STUDY

RESEARCH IS BEING CONDUCTED ON THE PRODUCTION OF A BITUMINOUS CEMENT BY THE HYDROGENATION OF COAL. THE COMPLETE RESULTS OF 26 HYDROGENATION EXPERIMENTS ARE GIVEN. THE FOLLOWING CONCLUSIONS HAVE BEEN REACHED. THE HYDROGENATION CONDITIONS USED IN MOST OF THE RUNS TO DATE HAVE BEEN QUITE SEVERE AND THE PRODUCTION OF GASEOUS BY-PRODUCTS HAS BEEN HIGH. THE EFFECT OF SEVERE CONDITIONS ON THE PRODUCT PROPERTIES IS NOT YET DEFINED BUT THERE IS AN INDICATION THAT THE EFFECT WILL BE NOTICEABLE. THE PROBABLE RANGE OF OPERATING CONDITIONS FOR THE PROCESS ARE' PRESSURE AS HIGH AS COMMERCIALLY FEASIBLE, TEMPERATURE BETWEEN 725 DEGREES AND 825 DEGREES AND TIME BETWEEN ONE-HALF AND THREE HOURS. THE PRESENCE OF FERROUS CATALYST SEEMS TO IMPROVE THE YIELD. THE NET YIELD POSSIBLE WITH THE SUBBITUMINOUS COALS AND CARRIERS USED MAY BE AS HIGH AS 80 PERCENT OF THE MOISTURE-FREE COAL CHARGED. YIELDS AS HIGH AS 40 PERCENT OF COAL CHARGED HAVE BEEN OBTAINED WITH PRODUCT OF DESIRABLE CHARACTERISTICS. HIGHER YIELDS HAVE BEEN OBTAINED BUT OF A POORER PRODUCT. THE ULTIMATE PRODUCT IS, AS YET, ILL-DEFINED . THE BETTER BITUMENS PRODUCED TO DATE ARE COMPARABLE IN MANY WAYS TO ASPHALTS AND ROAD TARS. MOST OF THE BITUMENS HAVE A HIGHER VISCOSITY TEMPERATURE SUSCEPTIBILITY THAN ASPHALTS WITH SUSCEPTIBILITY BEING IN THE RANGE OF, OR LOWER THAN, ROAD TARS. SOME HAVE HAD A LOWER RETAINED VISCOSITY THAN ASPHALTS INDICATING IMPROVED AGING PERFORMANCE. /AUTHOR /

  • Supplemental Notes:
    • 146 Pp, FinAL REPORT
  • Corporate Authors:

    University of Wyoming, Laramie

    Wyoming Survey and Analysis Center, 710 Garfield
    Laramie, WY  United States  82070

    Wyoming State Highway Department

    ,    
  • Authors:
    • Silver, H F
    • Davis, B E
    • Duncan, W E
  • Publication Date: 1965-6

Subject/Index Terms

Filing Info

  • Accession Number: 00210636
  • Record Type: Publication
  • Files: TRIS, STATEDOT
  • Created Date: Aug 4 1994 12:00AM