Smart Solutions for Long-Term Asset Protection and Operational Excellence

Background

The LNG plant in the GCC region had been following a monthly shock‑dosing practice using 2,000 kg of sodium hypochlorite for super‑chlorination. This approach, recommended by a previous vendor, caused sharp spikes in pH, ORP, and FRC, increasing the risk of copper corrosion due to halogens and hypochlorite by‑products. Managing such large chemical volumes also introduced safety risks, excessive consumption, and environmental concerns.

Despite the high dosage, the frequency and method were ineffective for maintaining long‑term microbial control. Super‑chlorination created chemical imbalances without addressing the underlying causes, and the absence of an optimized biocide program left the system vulnerable to recurring contamination and operational inefficiencies.

Kurita was brought in to reassess the treatment program and implement proactive microbial‑control measures aimed at reducing chemical usage, improving safety, minimizing environmental impact, and protecting system integrity by shifting from reactive shock‑dosing to a sustainable, controlled strategy.

Objectives

• Reduced Chemical Consumption.
• Long term sustainable Operational & Asset Protection