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Industrial vapor recovery and air pollution control equipment background

Tank-Farm VOC Recovery and Adsorption Project

This tank-farm project combines vapor recovery and adsorption-based treatment for VOC emissions from storage and loading operations.

Project Scope

  • Application: finished-product and intermediate tank-farm VOC control
  • Reference capacities: 500 m³/h and 1,000 m³/h
  • Technologies: pressure swing adsorption, absorption and cryogenic pretreatment
  • Sources: tank breathing, loading arms and non-condensable process gas

Engineering Considerations

Tank-farm systems should be designed around vapor composition, loading frequency, tank pressure, recovery value, hazardous-area requirements and the required emission limit.

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Request a Tank-Farm Review

Send tank volume, loading rate, vapor composition, peak airflow and recovery target for a preliminary VRU and VOC-treatment assessment.

Design Basis

Tank-farm recovery systems are sized from tank breathing calculations and loading schedules: vapor space growth, turnover volume and the saturation level of displaced vapors determine the design flow and richness of the stream.

System Composition

Adsorption-absorption packages combine activated carbon or zeolite beds for bulk recovery with an absorption column for final polishing. A vacuum regeneration loop recovers hydrocarbon liquid back to storage, keeping net emissions below local limits.

Compliance

Performance is verified against inlet/outlet hydrocarbon concentration measurements; typical guarantee points are expressed as g/m3 non-methane hydrocarbons at the stack.