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Comment PDF Processing & Handling

Compressors for Specialized Applications

By Amin Almasi Consultant |

Compressors for specialized chemical process industries (CPI) applications — particularly high-pressure applications (involving large- and medium-sized machines) and those calling for small compressor units — present particular challenges to system designers and operators. This article discusses a variety of engineering recommendations that should be considered to address these challenges. This discussion focuses on five specific areas: • High-pressure compressors • High-pressure dry-gas seals • High-pressure internal seals • Dynamic simulation of high-pressure turbocompressors • Issues associated with the surge zone Each section discusses high-pressure centrifugal compressors, in the medium to large size range (1–40 MW) for high-pressure service (100–900 barg). The final two sections also discuss engineering challenges that arise with small compressors (10–100 kW) for specialized CPI applications. FIGURE 1. This high-pressure centrifugal compressor has a single shaft and vertically split casing. This compressor model has been qualified for many industrial process situations and is suitable for use with a wide range of process gases,…
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