The purpose of this research project was to explore the basic concepts and the technical feasibility of using pipelines to transport extruded coal capsules, called 'coal logs', without having to enclose the coal in containers. Such a system appears to have all the advantages of HCP (Hydraulic Capsule Pipeline), such as low energy consumption, low water consumption, and low dewatering cost, plus the main advantage of slurry pipelines: only a single pipeline is required for coal transport. A broad range of research activities were conducted including: (1) testing various kinds of binders for coal log extrusion; (2) testing the physical and burning properties of coal logs; (3) testing the hydraulic and transport properties of coal logs including hydrodynamic test and wear (abrasion) test; (4) testing the effect of fiber (wood pulp) added to the flow for reducing drag and wear; (5) analyzing the technical and economical feasibility of coal log pipeline transportation of coal. The hydraulic test, wear test and fiber-effect test were all conducted using both a small (2-inch-diameter, 75-ft-long) pipe loop and a large (8-inch-diameter, 450-ft-long) pipe loop. Coal logs of several diameter ratios were circulated through these pipes. Results of the tests were recorded, analyzed and plotted by an on-line digital computer with A-to-D conversion capability.

  • Supplemental Notes:
    • Portions of this document are illegible in microfiche products.
  • Corporate Authors:

    University of Missouri, Columbia

    College of Engineering
    Columbia, MO  United States  65211
  • Authors:
    • Liu, Huitao
    • MARRERO, T R
  • Publication Date: 1989-6-15

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 66 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00495240
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: DOE/PC/90517-T3
  • Files: TRIS
  • Created Date: Jul 31 1990 12:00AM