Oil paint and information: in general, anything published before 1952 is suspect. Until 1991 nothing was known about the organic aspect of cave paintings from the Paleolithic era. Many assumptions were made about the "chemistry" of the binders. The oldest known oil paintings date from 650 AD, found in 2008 in caves in Afghanistan's Bamiyan Valley, "using walnut and poppy seed oils." Though the ancient Mediterranean civilizations of Greece, Rome, and Egypt used vegetable oils, there is little evidence to indicate their use as media in painting. Indeed, linseed oil was not used as a medium because of its tendency to dry
Gas oil separation plant a pipeline. The crude must be processed and treated to make it safe, environmentally acceptable, before it can be transported to a refinery for processing. It is often appropriate to separate gases and liquids for separate use. This also involves the separation of oily and water liquid phases. 123 In old days, the gas was considered waste and was burned on the spot - flared off. By recovering the gas, carbon emissions are reduced at the production site, and create a marketable commodity. Gas oil separation plant A Gas-oil separation package (GOSP) is a "package" used in the upstream oil