LERC

Genet,J P,andD Fenoud Yenzdieriroi Lerc, 25, 3579 H984 ... 

Zhang, D, A Gbosb, C Suling, andM J Millet Tenzilierii-oi Lerc, 37, 3799 H996 ... 

Pater R, Proc High Temp Polym Matrix Comp, NASA LeRC march 1983... 

Haines, W. E. Thompson, C. J. Separating and Characterizing High-Boiling Petroleum Distillates The USBM-API Procedure. ERDA/LERC/RI-75/5-BERC/RI-75/2, 1975, 30 pp. 

Gunn, R.D. Whitman, D.L. LERC (Laramie Energy Research Center)/RI-76/2, 1976. 

The raw Colorado shale oil used in this study was provided by DOE s Laramie Energy Research Center (LERC). It was prepared in the Paraho tests in a surface retort operated in the so-called indirectly heated mode. As received, it was an emulsion containing 6% water and about 0.5% fine particles in the shale oil. Heating this mixture to 170°F broke the emulsion most of the water and fines settled out after standing at... 

Shale Oil, July 1, 1975, U.S. Energy Research and Development Administration Report LERC/RI 7513. 

Petroleum Distillates, The USBM-API Procedure, LERC/RI-75/5 and BERC/ RI-75/2, July, 1957. 

X omestic tar sands are known to contain over 30 billion barrels of oil, - most of which occurs in a few deposits in Utah (I). The Laramie Energy Research Center (LERC) is investigating many of these deposits in order to determine the potential for exploitation of this resource. 

Late in 1975, personnel from Laramie Energy Research Center (LERC), then of the U.S. Energy Research and Development Administration, conducted an in situ recovery experiment in the Northwest Asphalt Ridge deposit near Vernal, Utah. Reverse combustion was chosen as a recovery method because it was felt that this method was more likely to succeed for in situ recovery of tar sands hydrocarbons. 

Work in the area of hydrocarbon-type analysis, i.e. saturate, olefin, and aromatic, has been conducted at the Laramie Energy Research Center (LERC) for over two decades. During this time, a significant portion of the eflFort has been directed towards the quantification and characterization of the various types of olefins found in Green River Formation shale oils and their distillate fractions (1-9). 

Another study from the LERC laboratories illustrates the increasing inadequacy of this type of separation as the molecular weight of the oil is increased (7). On a high-resolution liquid chromatography (LC) column (10,000 theoretical plates) which gave a wide separation of n-hexadecane from n-hexadecene-1, a shale oil saturate-olefin concentrate from a light distillate (400°-600°F) showed only an inflection point for the saturate, hindered-olefin break. A sample of heavy gas oil (800°-1000°F) saturate-olefin concentrate did not show even that. We must conclude from these data that the silica gel separation probably separates only mono-unhindered olefins from the saturates and aromatics with any degree of effectiveness. 

Table II. Composition Analysis of VHiole Shale Oils from LERC Controlled State Retort...

Table IV. Trace Elements and Species in Offgas from the LERC 10-Ton Research Oil Shale Retort...

Ids.- action is from chiral r.u>14.4]nonan-6-ol iia >. hiral dienophiles is lerc clectivity. An access X". ( -symmetric Cu(II) Z a . jphosphonate ... 

NASA, Small Scale Slush Hydrogen Test Facility, World Wide Web, http //lerc.nasa.gov/WWW/slush, NASA (1997). 

Internal conversion may also e ult in the phenomenon o(pr(uiiss(>ci(iliori. I lerc, the election moves from... 

Lxtracolumn broadening can become quite. serious when small-bore columns are used. I lerc, the radius of the extracolumn components should be reduced to... 

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