Results 241 to 250 of about 538,368 (282)

On-line optimization of a rectification column

Computers & Chemical Engineering, 1988
Abstract A simple on-line optimal control algorithm is suggested for a rectification column. Two optimization criteria, energy supply and distillate production, lead to a vector optimization problem. The Pareto compromise set is constructed by the method of weight coefficients or by the method of e -constraints.
P. Rosendorf, M. Kubiček, J. Schöngut
openaire   +1 more source

Temperature of the Feed at the Inlet of a Rectification Column

Chemistry and Technology of Fuels and Oils, 1966
exaly   +2 more sources

Testing Valved Trays for Rectification Columns

Chemical and Petroleum Engineering (English Translation of Khimicheskoe I Neftyanoe Mashinostroenie), 1965
exaly   +2 more sources

Effects of Water on Steam Rectification in a Packed Column

Chemical Engineering Research and Design, 2011
Abstract The effects of water on steam rectification, i.e., multi-stage saturated steam distillation, were investigated in a packed column. N-octane–p-xylene and 1,3,5-trimethylbenzene–1,2,4-trimethylbenzene were used as test systems. Both binary systems are nearly ideal systems and insoluble in water, thus the effects of water in steam rectification
Qingli Qian, Hongxing Wang, Peng Bai, Guoqing Yuan   +3 more
exaly   +2 more sources

Intermediate irrigation of complex rectification columns

Chemistry and Technology of Fuels and Oils, 1969
1. The use of “blind” trays in complex columns is not advantageous since, in this case, the connection of the sections with respect to the liquid flow is made difficult, and there is a lowering of the operating flexibility of the unit, with regulation of different industrial indices (removal and quality of distillates, degree of heating of the raw ...
A. K. Manovyan, A. I. Skoblo, O. K. Odintsov, N. A. Goncharova   +3 more
openaire   +1 more source

Cap-grid plates in rectification and absorption columns

Chemistry and Technology of Fuels and Oils, 1968
1. Cap-sieve plates are highly effective contact devices. 2. The capacity of cap-sieve plates is higher than that of cap plates and lower than that of sieve plates. 3. Cap-sieve plates ensure stable operation under considerable variations in load and, hence, are broad-range plates. 4. Owing to the special features
V. G. Chekmenev, S. A. Kruglov, A. I. Skoblo   +2 more
openaire   +1 more source

Enhancing performance of rectification columns for ethanolamine manufacturing

Russian Journal of Applied Chemistry, 2007
A problem is considered of enhancing performance of pilot plant installation for manufacturing ethanolamine by replacement of modern packed towers for old type rectification columns. The modernization result is increase in productivity and product quality, and energy saving.
A. G. Laptev, M. I. Farakhov, N. G. Mineev, E. A. Lapteva, V. N. Kudryashow, I. Kh. Mukhitov, M. G. Khusnullin, I. G. Askarov   +7 more
openaire   +1 more source

Features of the Transient Regime in a Rectification Plate Column

Chemistry and Technology of Fuels and Oils, 1965
I. V. Anisimov, V. N. Krivsunov
exaly   +2 more sources

Modeling and Control of Rectification Column

Proceedings of the Technical University of Sofia, 2022
Ahmed Kula, Anna Georgieva, Georgi Ruzhekov   +2 more
openaire   +1 more source

Design of packed distillation columns. III. Rectification film resistances in a packed column

Journal of Applied Chemistry, 1951
AbstractData are presented which lead to the conclusion that the liquid‐film resistance was the controlling resistance in rectification of a binary system carried out in a particular packed column. This confirms the conclusion reached by other workers on similar packed columns.
C. H. G. Hands, F. R. Whitt
openaire   +1 more source