Environmental regulations require certain fluids to
be conveyed, pumped or injected in an absolutely
environmentally safe way. As a result of the reduced sulfur
content to lower ppm values, for example, a mixture of
H2S and CO2 is produced during refining
processes. Large quantities of this mixture must be injected
at pressures of approximately 300 bar. This fluid makes
extreme demands on existing pump systems.
Pump types frequently used, such as triplex or
quintuplex plunger pumps as well as high-speed centrifugal
pumps, have shown during trials and in operation that they
cannot meet the demands. The fluid is highly tox
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