which industries involve in this process of separation?
Petroleum refineries, petrochemical and chemical plants, natural gas processing ,and cryogenic air separation plants.
Fractional distillation
Fractional distillation is the most common form of separation technology used in petroleum refineries, petrochemical and chemical plants, natural gas processing and cryogenic air separation plants.
how are saturn's moon titan and neptune's triton similar Both of them are geologically active. who discovered the triton? William Lassell. when was it discovered? 10 October,1846. can you mention some physical characteristics of this natural satellite? Triton's crust consists of 55% nitrogen ice with other ices mixed in. Water ice comprises 15–35% and frozen carbon dioxide the remaining 10–20%. Its surface area is 23 million km. how is the atmosphere there? It has a tenuous nitrogen atmosphere, with trace amounts of carbon monoxide and small amounts of methane near its surface. can you tell me when was this first chemical element you just mentioned discovered? It has the symbol N and atomic number 7. where is this element can be found? From nitre (potassium nitrate, saltpetre) and sodanitre (sodium nitrate, Chilean saltpetre). can you tell me how this can be produce? By the fractional distillation of liquid air, or by mechanical means using gaseous air. can you explain the first process just mentioned? It  is the separation of a mixture into its component parts, or fractions.
wiki:19531508
Fractional distillation [SEP] Industrial distillation
Fractional distillation is the most common form of separation technology used in petroleum refineries, petrochemical and chemical plants, natural gas processing and cryogenic air separation plants. In most cases, the distillation is operated at a continuous steady state. New feed is always being added to the distillation column and products are always being removed. Unless the process is disturbed due to changes in feed, heat, ambient temperature, or condensing, the amount of feed being added and the amount of product being removed are normally equal. This is known as continuous, steady-state fractional distillation. Industrial distillation is typically performed in large, vertical cylindrical columns known as "distillation or fractionation towers" or "distillation columns" with diameters ranging from about and heights ranging from about or more.