simulation and design of etherification reactor based on matlab/simulink
DESCRIPTION
Simulation and Design of Etherification Reactor based on MATLAB/SIMULINK. Reporter: Supervisor:. Lyu Wenjun Xin Feng. contents. 1. The raw material. C4. Have C4 except active component ? Simplify the composition of raw material ? Be beneficial to code. Process flow diagram. - PowerPoint PPT PresentationTRANSCRIPT
Simulation and Design of Etherification Reactor based on MATLAB/SIMULINK
Reporter:
Supervisor:
Lyu Wenjun
Xin Feng
2012/12/04
contents
1. The raw material and process flow diagram
2. The reactor
3. The next plans
2012/12/04
1. The raw materialComponent mass
fraction Component mass fraction Component mass
fraction
METHANOL 16.67 3-METHYL-1-BUTENE 0.493 2-METHYL-2-PENTENE 2.953
1-BUTENE 2.368 1-PENTENE 2.008 3-METHYL-1-PENTENE 4.451
CIS-2-BUTENE 1.763 CIS-2-PENTENE 3.532 3-METHYL-CIS-2-PENTENE 1.614
TRANS-2-BUTENE 1.822 TRANS-2-PENTENE 6.126 4-METHYL-CIS-2-PENTENE 0.42
N-BUTANE 0.495 2-METHYL-BUTANE 8.223 3-METHYL-TRANS-2-
PENTENE 2.982
ISOBUTANE 1.029 N-PENTANE 1.702 1-METHYLCYCLOPENTENE 2.417
CYCLOPENTENE 0.92 METHYL-ISOBUTYL-ETHER 0.347 3-METHYLCYCLOPENTENE 0.508
2-METHYL-1,3-BUTADIENE 0.143 1-HEXENE 1.869 2,3-DIMETHYL-BUTANE 1.973
2-PENTYNE 0.388 CIS-2-HEXENE 1.717 N-HEXANE 6.106
CYCLOPENTANE 0.18 TRANS-2-HEXENE 2.033 2-ETHYL-1-PENTENE 2.308
2-METHYL-1-BUTENE 3.67 METHYLCYCLOPE
NTANE 2.548 3-ETHYL-1-PENTENE 1.188
2-METHYL-2-BUTENE 8.462 2-METHYL-1-
PENTENE 7.352
C4a) Have C4 except active component ?b) Simplify the composition of raw
material ?c) Be beneficial to code.
2012/12/04
Process flow diagram
1
2
3
4
5
6
7
8
9
10原料 产品
R1 E1 T1 E2 R2一段反应器 换热器 精馏塔 换热器 二段反应器
MATLAB ASPEN+MATLAB
2012/12/04
2. The reactor -catalystSome characteristics of D005
Exchange capacity, mmol/g[H+] ≥5.2
Water content, % 50-58
Bulk density, g/ml 0.75-0.85
Wet true density, g/m 1.18-1.28
Particle diameter, mm 0.315-1.25
Pore diameter, nm 8-45
Surface area, m2/g 40-50
Porosity, ml/g 0.35-0.40
Maximum operation temperature, ℃ 120
The maximum operation temperature is 120℃
The catalyst (D005) is special for MTBE
C5+Methanol: D005II (A-35)
C6+Enthanol: A-15 (D005)
2012/12/04
The reactor model
Fixed-bed reactor
2
02i i
a id c dcD u rdZ dZ
00 2
0
,iiF Q
c uQ r
2'
2 20
1 1a i ib w i
D d F dFw r
Q dZ r dZ
𝜺=𝟏− 𝒃𝒖𝒍𝒌𝒅𝒆𝒏𝒔𝒊𝒕𝒚𝒘𝒆𝒕 𝒕𝒓𝒖𝒆 𝒅𝒆𝒏𝒔𝒊𝒕𝒚=𝟎 .𝟑𝟓
density
wet
Bulk density0.75-0.85
Wet true density
1.18-1.28
dry
True density1.6
swelling
2012/12/04
The reactor model Expanded reactora) Mathematical modelb) The velocity of flow
2 1650mf p p g gU d ( )g / ( )
20/e gmfgp UdRpmf
fluidization velocity, mm/s 4.3
The first reactor
Volume flow rate, m3/h 58.53 (19.28×3.2)Diameter, m 2.5
velocity, mm/s 3.3
The second reacor
Volume flow rate, m3/h 25.89Diameter, m 1.7
velocity, mm/s 3.2
2012/12/04
The influence factors
Conversion
(C5, C6) >90%?
Outlet temperature The
circulation ratio
Diameter and Da
Length
Inlet temperature
The ratio of
methanol to isomers
Who is fixed
a) Create a function about all the influence factors, then seek for the optimal value based on the constrain conditions.
b) Consider the factors individually, or several factors
The axial diffusion coefficient
Applicable conditions:Reynolds number for the particle Rep:10-3-103 Bed porosities:0.4-0.8The bed porosity is 0.35.
0 480 20 0 011pa
.p
ReD. . Re
2012/12/04
3.The next plans
Deal with the puzzle above.
Compile the code about the process.
Distillation column: azeotrope (C4, C5, C6)
THANK YOU !