Fischer Assay

Fischer Assay

Fischer Assay is a standardized laboratory test for determining the oil yield from oil shale to be expected from a conventional oil shale extraction. A 100 gram oil shale sample crushed to <2.38 mm is heated in a small aluminum retort to convert|500|°C|°F|-1 at a rate of convert|12|°C|°F|0 per minute, and held at that temperature for 40 minutes.Cite paper
last=Dyni|first=John R.
title=Geology and resources of some world oil shale deposits. Scientific Investigations Report 2005–5294
publisher=United States Department of the Interior; United States Geological Survey
year=2006
url=http://pubs.usgs.gov/sir/2005/5294/pdf/sir5294_508.pdf
format=PDF
accessdate=2008-08-18] The distilled vapors of oil, gas, and water are passed through a condenser and cooled with ice water into a graduated centrifuge tube. The oil yields achieved by other technologies are often reported as a percentage of the Fischer Assay oil yield.

The original Fischer Assay test was developed in the early low temperature coal retorting research by Franz Joseph Emil Fischer and Hans Schrader.Cite paper
last=Heistand|first=Robert N.
title= The Fischer Assay, standard method?
publisher=Symposium on oil shale, tar sands, and related materials — production and utilization of synfuels
year=1976
location = San Francisco
url=http://www.anl.gov/PCS/acsfuel/preprint%20archive/Files/21_6_SAN%20FRANCISCO_08-76_0040.pdf
format=PDF
accessdate=2008-08-18]

ee also

* Fischer-Tropsch process

References


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