To support the expansion of its plants producing low density polyethylene (LDPE) and other petrochemicals, Qatar Petrochemical Company (QAPCO) chose a comprehensive safety solution. The Hima solution supports emergency shutdown (ESD), fire & gas (F&G) and furnace control as well as seawater cooling applications.
In total, 13 safety controllers were integrated with a Honeywell distributed control system (DCS) as part of an expansion project that included new construction, plant renovation and equipment retrofitting. Communication between the Honeywell DCS and the HIMA safety controllers is accomplished via Modbus TCP Master & Slave protocol.
Two Himax systems and 11 Hiquad systems, together supporting approximately 5000 I/Os, replaced a conventional relay-based safety system and PLCs. The Hima controllers are certified to SIL3 as per the IEC 61508/IEC 61511 standard.
QAPCO is a joint venture between Industries Qatar (80 %) and Total Petrochemicals (20 %). Considered as one of the region’s largest producers of LDPE, QAPCO also produces ethylene, sulphur and other petrochemicals.
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