Oil paint Presbyter, a 12th-century German monk, recommended linseed oil but advocated against the use of olive oil due to its long drying time. Oil paint was mainly used as it is today in house decoration, as a tough waterproof cover for exposed woodwork, especially outdoors. In the 13th century, oil was used to detail tempera paintings. In the 14th century, Cennino Cennini described a painting technique utilizing tempera painting covered by light layers of oil. The slow-drying properties of organic oils were commonly known to early painters. However, the difficulty in acquiring and working the materials meant that they were rarely
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