CHE111P - 1 - C HE111P Chemical Engineering Calculations [...

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CHE111P Chemical Engineering Calculations [ CHAPTER 1: STREAM VARIABLES ] Basic Principles  of Chemical  Engineering  Calculation Lecture Notes Ta b l e   o f   C o n t e n t s C h a p t e r   1 :   S t r e a m   Va r i a b l e s C h a p t e r   2 :   M a s s   b a l a n c e C h a p t e r   3 :   Va p o r   b a l a n c e C h a p t e r   4 :   E n e r g y   B a l a n c e Lecture Notes | Chemical Engineering Calculations 1
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CHE111P Chemical Engineering Calculations [ CHAPTER 1: STREAM VARIABLES ] * T h i s   l e c t u r e   n o t e s   i s   o n e   o f   t h e   l e c t u r e   n o t e s   o f f e r e d  b y   B r i g h a m   Yo u n g   U n i v e r s i t y   a s   a   p a r t   o f   t h e i r  s e r v i c e   t o   t h e i r   s t u d e n t s . * I t   i s   c o p i e d   t h e r e .   Yo u   m a y   c h e c k   i t   o u t   o n   t h e i r  w e b s i t e .   T h e   l i n k   c a n   b e   s e e n   b e l o w : h t t p : / / w w w . e t . b y u . e d u / ~ r o w l e y / C h E n 2 7 3 / Lecture Notes | Chemical Engineering Calculations 2
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CHE111P Chemical Engineering Calculations [ CHAPTER 1: STREAM VARIABLES ] Chapter 1: STREAM VARIABLES I. Stream Variables Used in Balances Process Stream Chemical   engineers   are   involved   in   designing   plants   which   convert   raw  materials into useful products.   Such plants commonly consist of several  operating units, such as reactors, pumps, columns, and mixers, connected  together by piping.  The simplified flow of material from one unit to another in  commonly shown in a  process flow diagram , or  PFD , such as the one  shown in  Figure 1  for the processing of crude oil to produce kerosene.  PFDs  can be highly simplified, showing piping as lines and process units as boxes  or slightly more artistic renderings like those in  Figure 1 .  In this course, we  will not be interested in what happens within the process unit, only how the  process variables change across the unit.  The term  process stream   refers  to the flow of a particular material between operating units.   Each unit will  have  input  or  feed  streams   aswell as  output  or  product  streams . Figure 1  represents a petroleum refinery which separates crude oil into useful  components.   The raw crude, which enters at the point labeled "CRUDE  FEED" passes through a combination of pumps, heat exchangers, heaters  and distillation columns and finally exits having been transformed into the  desired products.  The "CRUDE TOWER" is an example of one of the many  operating units within the refinery.  It is a distillation column which separates  the crude oil feedstock into output streams of various fuels as labeled on the  diagram. Figure 1 is shown on the right part of the column: 
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CHE111P - 1 - C HE111P Chemical Engineering Calculations [...

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