Modern manufacturing of VCM (the precursor to PVC) requires intensive monitoring to ensure conversion efficiency at various stages and detect yield impurities.


分析物 测量范围 精确度
三氯化铁 FeCl3 0-300 ppm inquire
氯气 Cl2 0-3,000 ppm inquire

分析仪表:

OMA 过程分析仪   FeCl3 + Cl2


分析物 测量范围 精确度
乙烯 C2H4 0-30% inquire
氧气 O2 0-15% inquire

分析仪表:

MCP-200 红外分析仪   CO2 + H2O

集成氧气探测器   O2


分析物 测量范围 精确度
一氧化碳 CO 0-10% inquire
二氧化碳 CO2 0-50% inquire
乙烯 C2H4 0-30% inquire
氧气 O2 0-15% inquire

分析仪表:

MCP-200 红外分析仪   CO + CO2 + C2H4

集成氧气探测器   O2


分析物 测量范围 精确度
水 H2O 0-200 ppm inquire

分析仪表:

MCP-200 红外分析仪   H2O


分析物 测量范围 精确度
水 H2O 0-200 ppm inquire

分析仪表:

MCP-200 红外分析仪   H2O

应用简述


PVC is a ubiquitous plastic favored in construction, piping, and many other industries due to the properties of the polymer, including light weight, chemical resistance, and versatility. PVC is produced by polymerizing vinyl chloride (VCM), a highly toxic/explosive chemical intermediate which is manufactured strictly for this purpose.

The process of producing VCM from raw materials is sensitive and requires careful monitoring to avoid contaminated products and equipment failure. Typically, VCM is made by thermal cracking of ethylene dichloride (EDC, formally 1,2-dichloroethane), which is produced on site from feed stocks of ethylene and chlorine.

The modern VCM production process sacrifices some efficiency in order to recycle bypoducts and operate at less expense. Maintaining yield purity and conversion efficiency throughout the various stages therefore requires continuous online monitoring of the production stream composition.

Applied Analytics provides a complete, field-proven set of solutions for EDC/VCM production process analysis. Our online chemical concentration monitors provide the real-time readings needed for optimization of the process at various critical analysis points. The OMA Process Analyzer monitors chlorine compounds, with integrated MicroSpec modules for additional measurements, providing a totally solid state, automated solution set.

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