Chemical Reactor Design, Optimization, and Scaleup by E. Bruce Nauman

Chemical Engineering

By E. Bruce Nauman

The vintage reference, now accelerated and up-to-date Chemical Reactor layout, Optimization, and Scaleup is the authoritative sourcebook on chemical reactors. This new moment variation consolidates the most recent info on present optimization and scaleup methodologies, numerical tools, and biochemical and polymer reactions. It offers the excellent instruments and knowledge to assist readers layout and specify chemical reactors optimistically, with state of the art talents. This authoritative advisor:

  • Covers the basics and rules of chemical reactor layout, in addition to complex themes and purposes
  • provides concepts for facing various actual homes in reactors of all kinds and reasons
  • incorporates a thoroughly new bankruptcy on meso-, micro-, and nano-scale reactors that addresses such themes as axial diffusion in micro-scale reactors and self-assembly of nano-scale buildings
  • Explains the tactic of fake transients, a numerical answer approach
  • comprises feedback for extra studying, difficulties, and, whilst applicable, scaleup or scaledown issues on the finish of every bankruptcy to demonstrate business functions
  • Serves as a prepared reference for defined formulation, rules, and information

this is often the definitive hands-on reference for practising pros and a very good textbook for classes in chemical reactor layout. it really is a vital source for chemical engineers within the approach industries, together with petrochemicals, biochemicals, microelectronics, and water therapy.

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Sample text

Where Q mass is the mass flow rate and I is the mass inventory in the system. We often write this equation using volumetric flow rates and volumes rather than mass flow rates and mass inventories. 3) where Q is the volumetric flow rate (volume per time) and ρ is the mass density (mass per volume). Note that ρˆ is the average mass density in the control volume so that ρV ˆ = I. 3 are different ways of expressing the overall mass balance for a flow system with variable inventory. In steady-state flow, the derivatives vanish, the total mass in the system is constant, and the overall mass balance simply states that input equals output.

Obviously, no real reactor can achieve this ideal state just as no tubular reactor can achieve true piston flow. However, it is often possible to design reactors that very closely approach these limits. 5 Determine the reactor design equations for elementary reactions in a CSTR. 48, which is then solved for aout . For a first-order reaction, R A = −ka. 48 becomes a quadratic in aout . 50) = ain 2ain k t¯ The negative root was rejected since aout ≥ 0. For a second-order reaction with two reactants, R A = R B = −kab.

For a second-order reaction with two reactants, R A = R B = −kab. 48, one for aout and one for bout . 51) Again, a negative root was rejected. 52) 26 Chapter 1 Elementary Reactions in Ideal Reactors Any Single Reaction in a CSTR The above examples have assumed that ain and t¯ are known. The solution then gives aout . The case where ain is known and a desired value for aout is specified can be easier to solve. 53) t¯ = R A (aout , bout, . 52. It is not useful for the general case of multiple reactions.

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