Computer applications in process development

Computer applications in process development

Computer applications in process development flowsheets, Mr S. Metcalfe's G E N I E was a novel development. However. some of the o t h e r systems, ...

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Computer applications in process development

flowsheets, Mr S. Metcalfe's G E N I E was a novel development. However. some of the o t h e r systems, especially from German sources, offered m; dis ,:ernible advance over simple programs such as GEMCS and indeed wcrc being applied to problems that :~.rc plainly linear and more suitable t,, solution by matrix n l c t h o d s ,ks chemical engineers 1,ec,,u~r m~,'~ involved in c o m p u t e r ahztcd ,{csig~ their interest in its full capabih~.ic.. is beginning tv, shox~. "! hZ \,as relic. ted by thcim-lusioo,d ('I'wrrx >;>]

2ud 4th April 1974. Erlangeu, Germany. Organized by the lfuropea~ Federation o f Chemical Engineering The series of annual symposia (of which Of the session papers, that by Rose this is one), have b e c o m e a familiar and Rippin (Zurich) on investment and valuable event in the chemical strategy in plant expansion planning engineering calendar. As a f o r u m for proved to be an interesting contribu discussing new applications of c o m p u t e r tiom techniques in various branches of chemi~ By far the most i m p o r t a n t session of cal engineering, they are much respecthe conference was the third on pro ted and well-attended l)y dclcgates ccss simulation for which eightecl: from all over the w o r l d . papcrs were accepted. For many deleThe one grcat criticism which is voIHptltcr ~ l k i ~ ) h i v s ill klii.:al,a~ .~i . a,_a{~:a.; gates, the 'state of the art' revicv< tc~ made every year is that simultaneous m g l h u s t h i n , b i r d >es~!,,~! ,,,, !. ,, e ..... this session by Professor J. \:itladscn translation facilities are not provided. sinluLttlon v~ab a v c r \ {l\t2[v ~,d u ! : was tile high point of the conference. 1he symposiuin at l£rlangen was no even t h o , g h , surprisingly, there w~'re Fte began his review by mfurnfing the exception but the language barrier was n . contrihuticms on distillati .,~ audience that he had found that no thernn~dynamks made less of a problem by thc organiless than 74 flowsheetmg systems had zers, l)ECtlI'2MA, who providcd each The fourth session oi ~hc sx ml,~,sm,~ b c e n r c p o r t c d . It was, h c s a i d , hlnlcntdelegate with a c o m p a c t book of was introduced hv .Mr [!. Ih,ft:~!am ablc that so much duplication should preprints. ( G e r m a m ) \vh,, u n f o r t u n a t e l ~ ,~:avc have occurred and hc hoped that thia The technical presentations were his revieu h~Gcrman Thc main!,usi \v~mtd not be repeated m the future. organized into four sessions: ness of the session wits dew~red ~,~ t \\'e could, hc proposed, progress ahmg 1. Cnmputcr aids in cxperimentati(m comparis(m of optimizati~m l,.,ch morc productive lines hv fostering 2. Invcstment planning niqucs and there was little agrccmcm closer co-operation between univcr3. Process simulation between autht,rs m~ which n:cthods t,, sitiesand mdustr}. Professor ViHad 4. Process optimization. r c c o m m e n d , t'r()fesso~ 1) "q. !iimme{ sen drew, particular attention t,, the hau (I~SA) was the ~mlv :~ut!;c,: ~ Although tile large n u m b e r of need for further wt,rk into reacher papers meant that parallel sessions in prol, OSC .~ nc,a method. ( ' ( ) ' q l " l 'ahi~'h modelling and fluidizcd bed dcslgu. in a wide range of comp;,:-i,:v ,, two lecture halls were necessary, this tte agrcecd with Mr Rint~ thai inter shox~edsignificantsavingsm ,mput~v was organized carefully so that deleactive computing had a vital role t~ timc ~*vcr existing nleth~*Llq gates were not torn between closely pla~ in the future. rclated topics. Also the timetable had In addition to the four sessions, a The standard of papers presented been organizcd so that all participants discussion period was hehl during the to this session was encouragingly high could attend the 'state of the art' final morning. The title of the d i s and they covered a wide spectrum. paper which preceded each session. cussion was 'Process Compilers' am1 tbc Professor Villadsen's opening remarks These survey papers were presented by subjcct was introduced by five leading were echoed by the large n u m b e r of a recognized authority in the field, who figures in flowsheeting. A lively disquestions from the audience about set the scene for the papers that cussion ensued in which a call for unit interaction, although only one of the followed. operations subroutine standardization systems described, CONCEPT, offered The first session began with a con> was made. Furthermore, a p l c a f o r anything more than basic facilities of prehensive survey by G. t v. F r o m e n t international co-operation was made this type. (Belgium) of mathematical methods of by Professor t l o f m a n n , ~ h o offered It was interesting to note that the correlation, curve-fitting and simulato act as a co ordinator to this effect. move away f r o m the sequential tion. Thc scssion papers were mainly This two and a half day s y m p o s i u m approach to simuhaneous solution of dcw~ted to the modelling of reaction will be regarded as having bccn highl) flowsheets is gaining ground. The kinetics and to descriptions of new beneficial by the 25(I delegates The T I S F L O system presented by Mr J. A. techniques. conference facilities were cxccJlcnl de l,eeuw den Bouter (Netherlands) The second session was introduced and the intr(~duction ~,i SI~IIL",f'l)t~ demonstrated the potential of this by ,\.lr J. Rinta (Finland) who gave a art' papcrs was much apprcciale, l This method. The p a p e r b v M r V . Vasek clcar exposition of the steps involved innovation could pcrhap.~ bc usel:u]Iv et al (Czechoslovakia) also detailed a in investment planning and their range combined with the 'round table' dis m e t h o d of this type. of applicability, ttis survey of the use cussion pcriods of thc prt'xious c\cnt A new style of paper by P. J. tteggs of the c o m p u t e r techniques in Finland of this series that was held in t'ans in (England) described the problems of April 1 0 7 4 ( s c c ( ' o m / m r ~i,t,dlw, was particularly interesting and revealed applying a flowsheeting package to a that only the larger organizations were Vol 5 No 4 ( O c t o b e r 1973) pp 257 case study. This is encouraging as it employing these techniques for any of 258). T h i s c o n f c r c n c c highlightcdtil~ acknowledges, at last, that these wellthe 25 possible applications. Mr Rinta growing interest by chemical engineer.~ developed techniques can n o w he could not foresee the wide use of in computer-aided design and t for tree regarded as a proven tool of the c o m p u t e r methods in investment planam looking forward to next },car's chemical engineering profession. ning unless interactive m e t h o d s were event in Karlsbad, Czechoslovakia. Of the papers devoted to the morc adopted. conventional sequential solution of I" ~$u~tcr

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COMPUTER AIDED DESIGN