Mercaptan Dosing Systems

Purpose: Mercaptan Injection Packages is to add small amounts of mercaptan compounds to natural gas, propane, or other odorless gases to give them a distinct odor for the purpose of detecting gas leaks and preventing accidents.

Overview: Mercaptan dosing system is a system used in the oil and gas industry to inject mercaptan compounds into natural gas to give it a distinctive odor. This is done as a safety measure to alert people of the presence of gas in case of a leak.

Mercaptan is a sulfur-containing organic compound with a pungent odor that is easily detectable by the human nose at very low concentrations. By injecting mercaptan into natural gas, the odor of the gas is changed from being odorless to a distinctive rotten egg smell, which can be easily detected by people in case of a gas leak.

 

Advanced FEA Analysis & Engineering Calculations for Skid-Mounted Chemical Injection Packages

At Verito Engineering Private Limited, we specialize in providing comprehensive engineering analysis and calculations for Skid-Mounted Chemical Injection Packages, ensuring superior performance, reliability, and compliance with global industry standards.

Our expertise covers Finite Element Analysis (FEA), Computational Fluid Dynamics (CFD), Structural, Mechanical, Hydraulic, and Thermal Calculations for all critical skid components, including:

Key Engineering Capabilities

Pressure Vessel Calculations API 675-Compliant Dosing Pump Selection & Sizing Agitator & Mixing Calculations (For Chemical Preparation Skids)
  • Pressure Vessel Design & Shell Thickness Calculation as per ASME Sec. VIII Div. 1 & 2.
  • Vessel Internal Component Load Analysis (Baffles, nozzles, internals, etc.).
  • Stress Analysis for Pressure Retaining Components to ensure longevity.
  • Nozzle Reinforcement & Load Analysis to prevent failures under operational loads.
  • Flow Rate & Pressure Drop Calculation for precise chemical metering.
  • Pump Stroke Length, Plunger/Diaphragm Sizing & NPSH Calculation to prevent cavitation.
  • Pulsation Dampener Sizing for flow stability & reduced pressure fluctuations.
  • CFD Analysis for Flow Optimization in complex piping networks.
  • CFD Analysis for Flow & Performance Optimization.
  • Impeller Selection & Torque Calculation for effective chemical mixing.
  • Structural & Fatigue Analysis of Agitator Shaft & Blades for extended service life.
  • Vortex Prevention & Baffle Sizing for improved mixing efficiency.
Automation & Instrumentation for Optimized Operations Piping Stress & Pressure Calculations Structural & Skid Frame Analysis
  • PLC, HMI, SCADA-Based Automation for precise control & reduced human intervention.
  • Smart Flow Meters, Pressure Transmitters & Level Sensors for real-time monitoring.
  • Automatic Dosing Adjustment & Data Logging to optimize chemical consumption & efficiency.
  • Pipe Wall Thickness Calculation as per ASME B31.3.
  • Flange Sizing/rating, Leakage & Weld Joint Strength Assessment for high-pressure applications.
  • Surge & Transient Flow Analysis to prevent pressure spikes.
  • FEA-based validation for skid stability, seismic loads, and lifting conditions.
  • Baseplate & Pump Mounting Deflection Study to prevent misalignment.
Strainer Calculations Safety & PSV Sizing Calculations Injection Quill
  • Strainer Mesh Sizing & Pressure Drop Calculations for filtration efficiency.
  • Pressure Safety Valve (PSV) Sizing per API 520/521.
  • Overpressure & Surge Analysis for emergency scenarios.
  • Injection Velocity & Jet Penetration Analysis for precise chemical dispersion.
  • Wake Frequency Calculation to prevent vibration-induced failures.
Material Selection & Corrosion Analysis Operational Efficiency & Cost Reduction
  • Material Compatibility Assessment (SS316, Duplex, Super Duplex, Alloy 20, Hastelloy).
  • NACE MR0175/ISO 15156 Compliance for sour service applications.
  • Optimized Equipment Layout for Compact Skid Design - reduces footprint & installation cost.
  • Automated Operation to Reduce Manpower Requirements.
  • Remote Monitoring & Troubleshooting for reduced downtime & maintenance costs.

 

The mercaptan dosing system typically consists of a storage tank for the mercaptan compound, a metering pump, injection points, and monitoring equipment to ensure the correct dosage of mercaptan is being injected into the natural gas. The system is designed to be reliable, accurate, and easy to operate, to ensure that the natural gas is safely and effectively odorized.

Supplied to:(1) One of the Largest oil and gas companies in India, and it operates across the entire hydrocarbon value chain.

Project:

(1) Indian Oil Corporation Ltd (IOCL), kochi
(2) Aegis Vopak Terminals Ltd., Rajula Amreli

Technical Aspects: – Available in ATEX, CE, ASME, API, IS…..etc.

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