The thermal preheated by the heat of reaction, part being used for effects define the hot and cold streams to be the injections. The remaining heat is used to produce considered in the ideal HEN (Heat Exchanger MP steam to be expanded in the steam network. Network) of the process, i.e. the heat
The invention discloses a method for refining methanol by using a divided wall distillation column, which comprises the following steps of:(1) introducing semifinished methanol serving as a raw material into the divided wall distillation column with a public stripping section through a feed hole, and performing rectification treatment by the following sub-steps of:(i) collecting light component impurities on a side GESMEX Plate and Shell heat exchangers - Biofuels and Heat exchangers are used in various process stages for pre-heating, glycerine heater and cooler, and in the methanol distillation, as economizers. All welded construction of the XPS - Plate & Shell heat exchangers is recommended for high temperatures or pressures, or if chemical attack of ingredients excludes the use of plate and frame heat exchangers with gaskets.
Sep 26, 2017 · Condensers:The duty of the heat exchangers was to condense either pure methanol or a mixture of vapors phases (composed by condensable components as methanol and water, and non-condensable ones, as air). Moreover the condensation had to take place in vacuum conditions.A correct thermal design of the heat exchangers was a critical point in this Methanol synthesis using captured CO2 as raw material Jan 01, 2016 · This mixture is preheated and partially evaporated in heat exchanger 20, using heat from the reactor off-gas. Then, the 2-phase stream is fed to distillation column 21. This unit is modelled with 57 equilibrium stages, feeded at stage 44 (counted from top).
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