MMA Plant

Technology Introduction:
There are three prevailing processes for MMA, or methyl methacrylate production, C-2 Process starting from ethylene, methanol and formaldehyde, C-3 Process (also called as ACH Process) which uses the byproduct of HCN from acrylonitrile production as the feedstock, and C-4 process which uses isobutene or tertiary butanol as the feedstock. SL TEC provides MMA plant based C-4 Process, consisting of three working units, i.e. oxidation unit, distillation unit and esterification unit.
Technical Features:
The MMA plant offered by SL TEC has advantages such as easy availability of feedstock, more environment friendliness, lower investment, lower production cost and etc.
Performance:
1. Product Specification
S/N
Item
Index
1
Purity, wt%
≥99.9
2
Colour, APHA
≤10
3
Water Content, wt%
≤0.05
4
Acidity, wt%
≤0.005
5
Polymerization 
Inhibitor, ppm
10

2. Specific Consumption
S/N
Item
Consumption Rate
1
Tertiary Butanol (TBA), mt/mt of MMA
14.2
2
Methanol, mt/mt of MMA
3.35
3
Polymerization Inhibitor, kg/mt of MMA
30
4
De-foaming Agent, kg/mt of MMA
5
5
Extraction Solvent, kg/mt of MMA
32
6
Steam (3.6MPaG, 350oC) , mt/mt of MMA
19.2
7
Demineralized Water, mt/mt of MMA
2.56
8
Service Water, mt/mt of MMA
1.2
9
Cooling Water, mt/mt of MMA
5522
10
Low Temp. Water (5-10oC) , mt/mt of MMA
1869
11
Low Temp. Water (15-20oC) , mt/mt of MMA
73.6
12
Electricity, KWH/mt of MMA
3200
13
Instrument Air, Nm3/mt of MMA
472
14
Compressed Air, Nm3/mt of MMA
160
15
Nitrogen (0.5MPaG)
89.6

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