Zhejiang Energy Yiwu Natural Gas Company

Overview of the Collaboration Between Yibai Natural Gas Dehydration and Filtration System and Zhejiang Zheneng Yiwu Natural Gas Company

Project Background:

Zhejiang Energy Yiwu Natural Gas Company’s LNG peak shaving station experienced frequent icing of peak shaving equipment due to excessively high moisture content in feed gas (average 0.8g/m³). Simultaneously, impurities within pipelines caused persistently high failure rates of metering instruments. Yibei provided a customized integrated dehydration and filtration solution tailored to the characteristics of coastal high-humidity environments.

Innovative Solution:

Dual-Module Redundant Design:

Parallel molecular sieve dehydration units (150,000 m³/day capacity × 2 sets)

Multi-stage gradient filtration system (mechanical separation + electrostatic adsorption + nano-membrane filtration)

Intelligent Operations & Maintenance System:

Equipped with 5G IoT monitoring platform

Real-time alerts for moisture/particle fluctuations

Automatic backup module switching (switching time < 30 seconds)

Implementation Outcomes:

▶ Moisture content reduced to 0.05g/m³ (exceeds GB17820-2018 Class I gas standard)

▶ Solid particle interception rate: 99.97% (zero detection of particles >5μm)

▶ Peak-shaving equipment failure rate decreased by 90%

▶ Annual maintenance costs for metering systems reduced by 1.8 million yuan