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Uploaded on:
13/02/2009 05:49:42
Type:
Digital Asset
File Size:
333.54 KB
Dimensions:
1000 x 762 pixels
2751 views 5 downloads
P number: P000187
Old photograph number: OSLPlate4
Caption: Scottish oil-shale processing 2. Benches of oil-shale retorts which are used to draw out the crude oil and other vapours from the raw material - the oil-shale.
Description: Scottish oil-shale processing 2. Benches of oil-shale retorts which are used to draw out the crude oil and other vapours from the raw material - the oil-shale. The retorts about 29 feet high and about 3 feet in diameter at the bottom are arranged in sets of four within firebrick heating chambers. Each pair of retorts have a hopper for the supply of raw material while at the bottom, the bench is carried on brickwork piers which enable spent shale to be discharged into trucks. The Scottish shale-oil manufacturing process consisted of basically two processes; the production of crude oil and sulphate of ammonia by heating up to 1800 degrees F. in a retort; and refining the crude oil into a series of oil and wax products as required by market conditions.
Date taken: 01/01/1927
Photographer: Unknown
Copyright statement: NERC
Acknowledgment: This image was digitized with grant-in-aid from SCRAN the Scottish Cultural Resources Access Network
Orientation: Landscape
Size: 333.54 KB; 1000 x 762 pixels; 85 x 65 mm (print at 300 DPI); 265 x 202 mm (screen at 96 DPI);
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