Results 21 to 30 of about 538,368 (282)

Calculation of the Rectification Column Network for the Criterion of the Minimum Exergy Loss

open access: yesChemical Engineering Transactions, 2014
The existing methods of calculation of the heat and power systems are based on the superstructure model. As it is commonly known, the term superstructure means a very complicated system which undergo simplification to the real and uncomplicated structure.
M. Markowski
doaj   +2 more sources

Rectification column: criteria of efficiency [PDF]

open access: yesTechnical Transactions. Mechanics = Czasopismo Techniczne. Mechanika, 2016
In the paper analysis of the factors influencing the efficiency of the rectification process is provided. The authors show that existing dependences, equivalent to HETP, cannot be used for calculating rectification plate columns and columns with vortex nozzles, in which the coefficients of mass transfer are substantially dependent on the irrigation ...
Blinichev, Valerian   +3 more
openaire   +2 more sources

Conditions at which preliminary condensation of vapour before its inlet into a rectifying column is economically expedient

open access: yesТонкие химические технологии, 2011
Analysis of heat cost for rectification was performed taking into account the phase state of the original mixture. The conditions, under which pre-condensation of vapour before its inlet into the column is economically expedient, were found.
M. K. Zakharov   +2 more
doaj   +1 more source

The efficiency of mass-transfer in the rectification process of binary and multicomponent mixtures

open access: yesТонкие химические технологии, 2010
Different values describing both the efficiency of rectification column and the efficiency of mass-transfer are represented in the brief literature review.
K. Yu. Tarkhov, L. A. Serafimov
doaj   +1 more source

The improvement in technology of rectification column calculation

open access: yesIOP Conference Series: Earth and Environmental Science, 2020
Abstract The task of automation and increasing the efficiency of calculating the parameters of the rectifying column for the needs of chemical production is being solved. Rectification is one of the most time-consuming chemical-technological processes responsible for the separation of liquid mixtures into practically pure components ...
A A Popov   +4 more
openaire   +1 more source

Energy saving mode of rectification ethylene glycol dehydration columns

open access: yesТехнічна інженерія, 2019
The article offers theoretical analysis of the possibility of using in the distillation column for dehydration of ethylene glycol of several streams of coolant, which has different temperature to reduce energy costs for ethylene glycol production. The
Ya.H. Dvoinos   +2 more
doaj   +1 more source

Microprocessor device for controlling the rectification column

open access: yes, 2023
У кваліфікаційній роботі розробляється тема «Мікропроцесорний пристрій управління ректифікаційною колоною». Мета роботи – підвищення якості функціонування ректифікаційної колони шляхом створення системи автоматизації та управління процесами перегонки та
Співак, Ігнат Ігорович
core   +1 more source

TECHNOLOGY OF CYCLIC DISTILLATION IN ALCOHOL PRODUCTION

open access: yesHarčova Nauka ì Tehnologìâ, 2019
Alternate changing of the steaming periods and liquid overflow allows to intensify mass transfer between liquid and steam and to reduce the specific consumption of heating steam in the process of separation of multicomponent mixtures.
Y. Buliy, P. Shiyan, A. Kuts, I. Melnik
doaj   +1 more source

Analysis of the Dynamic Characteristics of the Distillation Column of Plate Type

open access: yesEAI Endorsed Transactions on Energy Web, 2017
The relevance of the study related to the necessity to convert to “unmanned” production in a refinery and, as a consequence, we must derive a mathematical model of the high-octane gasoline process.
E. S. Gebel
doaj   +1 more source

Gas isotope thermometry in the South Pole and Dome Fuji ice cores provides evidence for seasonal rectification of ice core gas records [PDF]

open access: yesThe Cryosphere, 2022
Gas isotope thermometry using the isotopes of molecular nitrogen and argon has been used extensively to reconstruct past surface temperature change from Greenland ice cores. The gas isotope ratios δ15N and δ40Ar in the ice core are each set by the amount
J. D. Morgan   +7 more
doaj   +1 more source

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