Computer evaluation of distillation processes with parallel streams

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Mathematical models and iterative methods are developed for simulating alternative multicomponent distillation process with parallel flow streams (vapour and liquid streams) in order to study the variation of separating effects. In the parastillation process, the uprising vapour stream is divided into two equal parts at the bottom of the distillation column and the whole amount of the falling liquid is stage-by-stage alternatively contacted with both parts of the vapour. In the metastillation process, the falling liquid is separated into two equal parts at the top of the column, while the whole amount of the uprising vapour is stage-by-stage alternatively contacted with both liquids flows (Fig. 1). According to our precious study [6], the parastillation process results in smaller column with less investment or operating cost than distillation. In this study the metastillation process is investigated and it is found that the required theoretical number of stages increases roughly by 50%. However, the following liquid and vapour patterns on the trays, as specified by Lewis [5], can change significantly the stage efficiency as well as the economics of the alternative processes.

Original languageEnglish
Pages (from-to)51-58
Number of pages8
JournalHungarian Journal of Industrial Chemistry
Volume21
Issue number1
Publication statusPublished - 1993

Fingerprint

Distillation
Vapors
Liquids
Distillation columns
Parallel flow
Iterative methods
Operating costs
Mathematical models
Economics

ASJC Scopus subject areas

  • Chemistry (miscellaneous)
  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

@article{27f70fae740a4ebd924f3a2b16414e28,
title = "Computer evaluation of distillation processes with parallel streams",
abstract = "Mathematical models and iterative methods are developed for simulating alternative multicomponent distillation process with parallel flow streams (vapour and liquid streams) in order to study the variation of separating effects. In the parastillation process, the uprising vapour stream is divided into two equal parts at the bottom of the distillation column and the whole amount of the falling liquid is stage-by-stage alternatively contacted with both parts of the vapour. In the metastillation process, the falling liquid is separated into two equal parts at the top of the column, while the whole amount of the uprising vapour is stage-by-stage alternatively contacted with both liquids flows (Fig. 1). According to our precious study [6], the parastillation process results in smaller column with less investment or operating cost than distillation. In this study the metastillation process is investigated and it is found that the required theoretical number of stages increases roughly by 50{\%}. However, the following liquid and vapour patterns on the trays, as specified by Lewis [5], can change significantly the stage efficiency as well as the economics of the alternative processes.",
author = "P. Mizsey and I. M{\'e}sz{\'a}ros and Z. Fony{\'o}",
year = "1993",
language = "English",
volume = "21",
pages = "51--58",
journal = "Hungarian Journal of Industrial Chemistry",
issn = "0133-0276",
publisher = "University of Veszprem",
number = "1",

}

TY - JOUR

T1 - Computer evaluation of distillation processes with parallel streams

AU - Mizsey, P.

AU - Mészáros, I.

AU - Fonyó, Z.

PY - 1993

Y1 - 1993

N2 - Mathematical models and iterative methods are developed for simulating alternative multicomponent distillation process with parallel flow streams (vapour and liquid streams) in order to study the variation of separating effects. In the parastillation process, the uprising vapour stream is divided into two equal parts at the bottom of the distillation column and the whole amount of the falling liquid is stage-by-stage alternatively contacted with both parts of the vapour. In the metastillation process, the falling liquid is separated into two equal parts at the top of the column, while the whole amount of the uprising vapour is stage-by-stage alternatively contacted with both liquids flows (Fig. 1). According to our precious study [6], the parastillation process results in smaller column with less investment or operating cost than distillation. In this study the metastillation process is investigated and it is found that the required theoretical number of stages increases roughly by 50%. However, the following liquid and vapour patterns on the trays, as specified by Lewis [5], can change significantly the stage efficiency as well as the economics of the alternative processes.

AB - Mathematical models and iterative methods are developed for simulating alternative multicomponent distillation process with parallel flow streams (vapour and liquid streams) in order to study the variation of separating effects. In the parastillation process, the uprising vapour stream is divided into two equal parts at the bottom of the distillation column and the whole amount of the falling liquid is stage-by-stage alternatively contacted with both parts of the vapour. In the metastillation process, the falling liquid is separated into two equal parts at the top of the column, while the whole amount of the uprising vapour is stage-by-stage alternatively contacted with both liquids flows (Fig. 1). According to our precious study [6], the parastillation process results in smaller column with less investment or operating cost than distillation. In this study the metastillation process is investigated and it is found that the required theoretical number of stages increases roughly by 50%. However, the following liquid and vapour patterns on the trays, as specified by Lewis [5], can change significantly the stage efficiency as well as the economics of the alternative processes.

UR - http://www.scopus.com/inward/record.url?scp=0027167967&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0027167967&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0027167967

VL - 21

SP - 51

EP - 58

JO - Hungarian Journal of Industrial Chemistry

JF - Hungarian Journal of Industrial Chemistry

SN - 0133-0276

IS - 1

ER -