| Location: | Aracruz Pulp, Brazil |
| Client: | Nexen Quimica Brazil Ltda |
| Type: | Electrochemical, (Chlorate and Chloralkali) |
| Design Condition: | 50% Plant Expansion |
| Date: | September 2000 to May 2002 |
The Project Scope included site de-bottlenecking, plant reconfiguration and expansion. NORAM's scope of services included design of process, mechanical, electrical, instrumentation, and controls systems; procurement and expediting; site construction, commissioning and start up assistance.
Plant production increased to:
32% Caustic Solution | 147 mtpd |
Chlorine Gas | 130 mtpd |
32% HCl | 65 mtpd |
135 gpl Sodium Hypochlorite | 11 mtpd |
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Hypochlorite System Replacement
Before:
Single stage caustic scrubber
Limited capacity
After:
Two stage caustic scrubber
Rated for full cellroom production
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Chlorine Compression System Replacement
Before:
Multi-stage centrifugal compressor
Pre-cooling
High maintenance
After:
Liquid Ring compressor
Simple operation / Low maintenance
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Expansion of HCl System
Before:
HCl synthesis and tail gas scrubbing
Operation with dry Cl2 only
After:
New HCl synthesis and tail gas scrubbing
Operation with wet or dry Cl2
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Rectifier Relocation and Addition
Before:
Two Chlorate cell lines
One rectifier for each line
13.8 kV feed from Pulp Mill
After:
Two Chlorate cell lines
One new rectifier on one line
Two paralleled rectifiers on second line
New 138 kV substation
New harmonic filter bank
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