نتایج جستجو برای: multi component distillation column

تعداد نتایج: 1114945  

Journal: :Journal of The Japan Petroleum Institute 1968

1999
Ivar J. Halvorsen Sigurd Skogestad

The ``Petlyuk'' or ``dividing-wall'' or ``fully thermally coupled'' distillation column is an interesting alternative to the conventional cascaded binary columns for separation of multi-component mixtures. However, the industrial use has been limited, and diculties in operation have been reported as one reason. With three product compositions controlled, the system has two degrees of freedom l...

1999
Ivar J. Halvorsen Sigurd Skogestad

The “Petlyuk” or “dividing-wall” or “fully thermally coupled” distillation column is an interesting alternative to the conventional cascaded binary columns for separation of multi-component mixtures. However, the industrial use has been limited, and difficulties in operation have been reported as one reason. With three product compositions controlled, the system has two degrees of freedom left ...

2004
Kaj Jakobsson

Process intensification refers to technologies and strategies that enable simpler and more efficient processes compared to conventional processes. Some features of such intensified processes are less recycle streams, reduced need for waste handling and lower investment and operating costs compared to conventional processes. One way of doing this is by making two or more process steps simultaneo...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2002
mohammad reza ehsani

a shortcut procedure as quick, easy-to use method for design and simulation of multicomponent batch distillation is used to predict the operating condition of recovering xylene from solvent in an existing batch distillation column in benzol refinery. the procedure can be used to investigate the effect of the operating parameters on the operation of column for three possible modes of batch disti...

Journal: :Computers & Chemical Engineering 2015
José Antonio Caballero

In this paper, we propose a novel algorithm for the rigorous design of distillation columns that integrates a process simulator in a generalized disjunctive programming formulation. The optimal distillation column, or column sequence, is obtained by selecting, for each column section, among a set of column sections with different number of theoretical trays. The selection of thermodynamic model...

2001
Eva Swensen Sigurd Skogestad

A batch reactor may be combined directly with a distillation column by distilling off the light component product in order to increase the reactor temperature or to improve the product yield of an equilibrium reaction. The same amount of the light product should be removed as the amount being formed by the reaction at any time. A linearized model has been developed which describes the process b...

2014
Essam Natsheh Zhen-Yu Zhao

This paper projected fuzzy logic control based intention has been protruded for a methanol water arrangement of bubble cap distillation column. In this distillation column is extremely nonlinear and conventional control is controlling the composition is a difficult task. Fuzzy inference system (FIS) and fuzzy rule based system (FRBS) is designed to govern the manipulate variable (reflux ratio) ...

2008
RALUCA ISOPESCU ALEXANDRU WOINAROSCHY LOREDANA DRÃGHICIU

The paper presents the analysis of the thermal efficiency of a dividing wall distillation column and the influence of the feed composition on the reduction of energy consumption compared to a classical scheme of multicomponent mixture separation. The study relays on rigorous simulations in HYSYSTM using thermodynamically equivalent schemes. A case study is presented for the separation of a hydr...

2005
Jignesh Gangadwala Achim Kienle Utz-Uwe Haus Dennis Michaels Robert Weismantel

This paper is concerned with the computer-aided optimal design of reaction-distillation processes. The production of solvent 2,3-dimethylbutene-1 by isomerization of 2,3dimethylbutene-2 is considered as an innovative benchmark problem. Possible process candidates are a reactive distillation column, a reactor coupled to a nonreactive distillation column or a reactive reboiler with a nonreactive ...

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