Elements of Chemical Reaction ering 4th Ed - H. Scott Fogler 44

Elements of Chemical Reaction ering 4th Ed - H. Scott Fogler 44

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Mole Balances Chae. 1 0 ti t 0 1 ' Figure 1-6 M ole-time rrajectories. We might ask what time. t , , is necessary to reduce t he initial number of moles f rom N Ao to a final desired number N A I .Applying Equation ( 1-5) to t he isomerization rearranging. and integrating with limits that at r = 0. then N , = N,, NA = we obtain and at t = I , , then This equation is the integral form of the mole balance on a batch reactor. I t gives the time, r ,. necessary to reduce the number o f moles from /VAoto N ,, and also to form rYB1moles of B . 1.4 Continuous-Flow Reactors Continuous flow reactors are almost always operated at steady state. We wiil consider three types: the continuous stirred tank reactor (CSTR), the plug flow reactor (PFR), and the packed bed reactor (PBR). Detailed descriptions of these reactors can be found i n both the Professional Reference Shelf IPRS) for Chapter 1 and in the Visrral Encyciopeclin of Equiprnenr on the CD-ROM, 1.4-1 Continuous-Stirred Tank Reactor What i s a CSTR uxd A type of reactor used commonly in industrial processing is the stirred tank operated c ontinuously (Figure 1-7). It is referred to as the continuo~u-stirred tnrlk renrtor (CSTR) r vat, or backmix reactor; and i s used primarily for liquid o ...
View Full Document

This note was uploaded on 07/05/2010 for the course CHEM 204 taught by Professor Vanderwal,c during the Spring '08 term at UC Irvine.

Ask a homework question - tutors are online