Mercaptan Injection System

Applications:

• LPG Truck and Railcar Loading
• LPG Barge and Tanker Loading
• LPG / Natural Gas Pipelines

Specifications:

• Liquid Accuracy / Repeatability: 0.1% – 0.05% / 0.05% – 0.025%
  
• Density Accuracy / Repeatability: 0005 – 0.0002 g/cc / 0.00025 – 0.0001 g/cc
• Flow Rate: Up to 600 GPM
• Fluid Type: Liquid
• Temperature Range: -20° F to 140° F (Other Options Available)
• Operating Pressure Range: Up to 1,480 PSI
• Materials: (Tubing, Fittings, and Pressure Equipment) – 316 Stainless Steel
• Voltage: 24VDC, 120 VAC, 240 VAC (Other Options Available)
• Electronics: Expansive I/O options including mA, frequency, discrete, HART, Modbus, Ethernet/IP, PROFINET, FOUNDATION Fieldbus
• Area Classifications: Class I, Div 1, Groups C and D (Other Options Available)

Features:

• Every system is custom built to end user’s specifications
• Takes continuous density measurement throughout the loading process
• Can support multiple injection points at one time
• Can be used with existing preset or be a standalone system
• Safety features designed to shut down the loading process if off spec product is detected
• Eliminates misdirected flow
• Electronic pump sized specifically to meet customer’s flow requirements
• Smart Meter Verification runs comprehensive tests that can be scheduled, run locally, or from the control room to provide confidence in your meter functionality and performance
• NIST traceable closed loop calibrator
• 500 CC Proving cylinder
• Can be built in a NEMA enclosure or panel mounted
• Optional panel mounting stand available
• Optional local indicator lights for simplified loading and diagnostics
• Optional removable prover loop
• Optional custom bill of lading printing

Be Safe, Be Smart, Be Sure

The Liquid Meter Company Mercaptan Injection System insures you have an extremely reliable process in place. Troublesome pneumatic pumps and PD meters are replaced with reliable electric pumps and mass flow meters. The mercaptan meter utilizes Smart Meter Verification to monitor its own performance. It also verifys the mercaptan density to ensure it is on spec without entrained air, nitrogen or water diluting its strength.

No Room for Error

In systems where the components are hard plumbed in place, the potential for misdirected flow increases significantly. Mercaptan can be accidentally diverted back to storage or off to flare. With the LIMECO Mercaptan Injection System, the secondary tubing is replaced by quick connects and a removable flex hose. When system maintenance or proving is needed, a temporary connection is made. When finished, the hose is removed leaving a single path for the mercaptan to follow to the injection point. This provides complete assurance that the mercaptan is not being diverted by an improperly sequenced valve or leaking valve seat.

Checks and Balances

Accurate measurement of the mercaptan is the cornerstone for building a system of checks and balances. The accumulative total from the meter can be compared to the volume used from the mercaptan supply tank. When applicable, these values can also be compared to the cumulative total of the injection points for a three way check on mercaptan consumption. With a properly managed system the need to over-inject is significantly reduced.