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Course Syllabus

Course Objective: Silabus TRK 1 dan 2.docxText book:H. Scott Fogler, Elements of Chemical Reaction Engineering, Prentice-Hall, 4th

Edition, 2006. (main resource) (HSF)

www.engin.umich.edu/~cre/344/

Grading System: SAP TRK Reguler_Paralel 2013-14.doc

http://localhost/var/www/apps/conversion/tmp/scratch_10/Silabus%20TRK%201%20dan%202.docxhttp://www.engin.umich.edu/~cre/344/http://localhost/var/www/apps/conversion/tmp/scratch_10/SAP%20TRK%20Reguler_Paralel%202013-14.dochttp://localhost/var/www/apps/conversion/tmp/scratch_10/SAP%20TRK%20Reguler_Paralel%202013-14.dochttp://localhost/var/www/apps/conversion/tmp/scratch_10/SAP%20TRK%20Reguler_Paralel%202013-14.dochttp://localhost/var/www/apps/conversion/tmp/scratch_10/SAP%20TRK%20Reguler_Paralel%202013-14.dochttp://www.engin.umich.edu/~cre/344/http://localhost/var/www/apps/conversion/tmp/scratch_10/Silabus%20TRK%201%20dan%202.docx

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What is CRE?

Chemical reaction engineering (CRE) is at the heart ofvirtually every chemical process. It separates the

chemical engineer from other engineers.

CRE is the field that studies the rates and

mechanisms of chemical reactions and the design ofthe reactors in which they take place.

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What is Chemical Reaction

A Chemical reaction is a process that results in the conversion

of chemical substances. The substance or substances initially

involved in a chemical reaction are called reactants. These

reactants are characterized by a chemical change and they

yield one or more products. These products are generally

different from the original reactants. Chemical reactions may

be of different nature depending on the type of reactants,

type of product desired, conditions and time of the reaction,

for example, synthesis, decomposition, displacement,percipitation, isomerization, acid-base, redox or organic

reactions. These reactions are being given in Table 1, stating

their area of utility, advantages, limitations and examples.

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Chemical reactors are vessels designed to contain chemical reactions2. It is the site of conversion of raw

materials into products and is also called the heart of a chemical process. The design of a chemical

reactor where bulk drugs would be synthesized on a commercial scale would depend on multiple

aspects of chemical engineering. Since it is a very vital step in the overall design of a process,

designers ensure that the reaction proceeds with the highest efficiency towards the desired output,

producing the highest yield of product in the most cost effective way.

Reactors are designed based on features like mode of operation or types of phases present or the

geometry of reactors. They are thus called:

Batch or Continuous depending on the mode of operation.

Homogeneous or Heterogeneous depending upon the phases present.

They may also be classified as :

Stirred Tank Reactor, or

Tubular Reactor, or

Packed Bed Reactor, or

Fluidized Bed Reactor,

depending upon the flow pattern and manner in which the phases make contact with each other. Adetailed comparison of various chemical reactors is tabulated in Table-2.

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Pillars of CRE

Mole Balance

Rate Laws

Stoichiometry

Energy Balance

Diffusion +

transport

Contacting

Design of chemical engineering

reactor, PFR, CSTR, Batch,

Semibatch, Packed.Analysis rate data, Laboratory

reactors, Modeling real

reactor, RTD, dispersion,

segregation.

Non-isothermal operation,

multiple steady state.Mass transfer operation

Multiple reaction

Application:

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Chemical Identity

A chemical species is said to have reacted when

it has lost its chemical identity.

The identity of a chemical species is determined

by the kind, number, and configurationof that

species atoms.

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Chemical Identity

A chemical species is said to have reacted

when it has lost its chemical identity.

1. Decomposition

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Chemical Identity

A chemical species is said to have reacted

when it has lost its chemical identity.

1. Decomposition

2. Combination

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Chemical Identity

A chemical species is said to have reacted

when it has lost its chemical identity.

1. Decomposition

2. Combination

3. Isomerization

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Reaction Rate

The reaction rate is the rate at which a species

looses its chemical identity per unit volume.

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Reaction Rate

The reaction rateis the rate at which aspecies looses its chemical identity per unit

volume.

The rate of a reaction (mol/dm3/s) can be

expressed as either

the rate of Disappearance: -rAor as

the rate of Formation (Generation): rA

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Reaction Rate

Consider the isomerization A B

rA= the rate of formation of species A per unitvolume

-rA= the rate of a disappearance of species A perunit volume

rB= the rate of formation of species B per unitvolume

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Reaction Rate

EXAMPLE: AB

If species B is being formed at a rate of

0.2 moles per decimeter cubed per second, ie,

rB= 0.2 mole/dm3/s

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Reaction Rate

EXAMPLE: AB

rB= 0.2 mole/dm3

/s

Then A is disappearing at the same rate:

-rA= 0.2 mole/dm3/s

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Reaction Rate

EXAMPLE: AB

rB= 0.2 mole/dm3/s

Then A is disappearing at the same rate:

-rA= 0.2 mole/dm3/s

The rate of formation (generation of A) is

rA= -0.2 mole/dm3/s

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Reaction Rate

For a catalytic reaction, we refer to -rA',

which is the rate of disappearance of

species A on a per mass of catalyst basis.(mol/gcat/s)

NOTE: dCA/dt is not the rate of reaction

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Reaction Rate

Consider species j:

rjis the rate of formation of species j per unit

volume [e.g. mol/dm3/s]

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Reaction Rate

rjis the rate of formation of species j per unit

volume [e.g. mol/dm3*s]

rjis a function of concentration, temperature,

pressure, and the type of catalyst (if any)

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Reaction Rate

rjis the rate of formation of species j per unit

volume [e.g. mol/dm3/s]

rjis a function of concentration, temperature,

pressure, and the type of catalyst (if any)

rjis independent of the type of reaction system

(batch reactor, plug flow reactor, etc.)

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Reaction Rate

rjis the rate of formation of species j perunit volume [e.g. mol/dm3/s]

rjis a function of concentration,temperature, pressure, and the type ofcatalyst (if any)

rjis independent of the type of reactionsystem (batch, plug flow, etc.)

rjis an algebraic equation, not adifferential equation

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General Mole Balance

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General Mole Balance

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Batch Reactor Mole Balance

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CSTR Mole Balance

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Plug Flow Reactor

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Plug Flow Reactor Mole Balance

PFR:

The integral form is: VdF

A

rA

FA0

FA

This is the volume necessary to reduce the entering molar flow rate (mol/s) from FA0to the

exit molar flow rate of FA.

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Packed Bed Reactor Mole Balance

PBR

The integral form to find the catalyst weight is: WdF

A

rAFA0

FA

FA0F

A r

AdW

dNA

dt

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Reactor Mole Balance Summary

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Rate Laws

dt

dN

V

r i

i

1

dt

dN

W

r i

i

1

dt

dN

S

r i

i

1

rA= dCA/dt, constant-volume batch reactor

Rate of reaction i = (change in mol/mass of i)/ (time-volume reaction)

Vant Hoff (in Etudes de Dynamique Chemie, 1884)

ri= f (Ci, Cj, P, T)

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Order & Rate Constant

k= Ae-E/RT, dimana

E = energi aktifasi (kal/mol)

R = konstante gas (kal/mol K)T = temperatur (K)

A = faktor frekuensi

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Thought Problem Solving Fogler.PDF

Contoh soal Homogeneous Fogler.PDF

Thought Problem Solving-Fogler.PDF

http://localhost/var/www/apps/conversion/tmp/scratch_10/Thought%20Problem%20Solving%20Fogler.PDFhttp://localhost/var/www/apps/conversion/tmp/scratch_10/Contoh%20soal%20Homogeneous%20Fogler.PDFhttp://localhost/var/www/apps/conversion/tmp/scratch_10/Thought%20Problem%20Solving-Fogler.PDFhttp://localhost/var/www/apps/conversion/tmp/scratch_10/Thought%20Problem%20Solving-Fogler.PDFhttp://localhost/var/www/apps/conversion/tmp/scratch_10/Thought%20Problem%20Solving-Fogler.PDFhttp://localhost/var/www/apps/conversion/tmp/scratch_10/Thought%20Problem%20Solving-Fogler.PDFhttp://localhost/var/www/apps/conversion/tmp/scratch_10/Contoh%20soal%20Homogeneous%20Fogler.PDFhttp://localhost/var/www/apps/conversion/tmp/scratch_10/Thought%20Problem%20Solving%20Fogler.PDF

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HW1

Fogler Edisi 4 kerjakan secara kelompok dan

dikumpulkan tanggal 9 Sept 2013.

P1-1A

P1-8A

P1-15B