Effect of feed source in the hot water processing of Utah tar sand

Conference · Mon Jan 01 00:00:00 EST 1979 · Annual SME of AIME Meeting; (United States)

OSTI ID:5587742

Miller, J D; Misra, M

The processing strategy for the effective separation of bitumen from low grade (< 10% by wt bitumen) Utah tar sands by a hot water process differs significantly from that used for the processing of high grade (> 10% by wt bitumen) Utah tar sands. Excellent separations (coefficient of separation = 0.9) can be achieved for high grade Utah tar sands by intense hot water digestion, followed by a modified froth flotation step. Such a technique is ineffective for low grade tar sands. In order to change the characteristics of the low grade tar sand, an attempt was made to enrich the bitumen content of the feed to < 10% by wt by recycle of bitumen concentration to the digestion stage. However, the quality of the separation was not improved under these circumstances. Similarly, feed enrichment by heat treating the low grade feed with recycled concentrate prior to digestion did not improve the separation. More successful separations of low grade Utah tar sands were finally achieved by modification of the viscosity of the low grade bitumen with controlled addition of diluent. 20 references.

• OSTI ID: 5587742
• Report Number(s): CONF-790219-
• Journal Information: Annual SME of AIME Meeting; (United States), Vol. 79-68; Conference: AIME annual meeting, New Orleans, LA, USA, 18 Feb 1979
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
BITUMENS
RECOVERY
OIL SANDS
HOT-WATER PROCESSES
EFFICIENCY
ENRICHMENT
MODIFICATIONS
OPTIMIZATION
QUANTITY RATIO
UTAH
VISCOSITY
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
ENERGY SOURCES
FEDERAL REGION VIII
FLUID INJECTION PROCESSES
FOSSIL FUELS
FUELS
MATERIALS
NORTH AMERICA
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
TAR
USA
040402* - Oil Shales &amp; Tar Sands- Surface Methods