Refinery basically processes specific crude oils into selected products by selecting an array of basic processing units. In general refinery employs the functions like
Distilling, wherein the chemicals in crude oil boil at different temperatures, allowing heated vapours to rise and collect at various levels separating out the various liquids derived from crude oil.
Cracking, wherein heavy liquids are converted into lighter liquids.
Reforming, wherein the process produces reformate, which is needed to increase the octane for cleaner burning fuels. Hydrogen is also produced by the catalytic reforming process which is further used for hydrotreating.
Treating, process basically removes contaminants such as sulfur, nitrogen, and heavy metals, which are undesirable in automotive fuels. Following the treatment, blending, and cooling processes, the liquids finally look like gasoline, lubricants, kerosene, jet fuel, diesel fuel, heating oil, and petrochemical feedstocks that are needed to create the plastics and other products you use every day.
Blending, wherein various streams are blended into finished petroleum products.
Thermal systems for various processes supply boilers, process gas coolers, Heat Exchangers like Flue Gas Coolers for FCCU in catalytic cracking, Process Gas Boiler for HGU in reforming, Incinerator, TGTU and reaction furnace boilers / packages with sulphur condensers & reactors for SRU in Treating, VCM / Waste Water Incinerator waste heat boilers in Petrochemical part of refinery.