Dynamic sealing
to missing upsets, time consuming and carries the burden of recurring laboratory costs.
The continuous on-line measurement and detection of petroleum hydrocarbons in water has been difficult. The difficulty lies in the need to detect low concentrations of hydrocarbons that are dissolved in water. Optical instruments called fluorometers can very easily detect and measure dissolved petroleum hydrocarbons in water, and at very low concentrations.
Continuous uninterrupted leak detection of steam condensate requires continuous monitoring. The refinery chose the Turner Designs TD-4100 continuous on-line monitor to meet its monitoring needs for this study. The Turner Designs TD-4100 was installed to detect leaks from the heat exchanger. The TD-4100 continuous on-line monitor can measure and detect from ppb to ppm for both dissolved and dispersed aromatic hydrocarbons in water.
The TD-4100 was configured with a BTEX optical filter kit which permits the detection and measurement of mono-aromatic hydrocarbons in water. In particular, the filter kit can measure benzene, toluene, ethylbenzene and xylene, as well as, phenol. The monitor provides continuous uninterrupted analysis of these chemicals in water.
The TD-4100 was operated in the raw fluorescence mode. thereby functioning as an "upset" monitor. The monitor can be calibrated for direct reporting for ppb levels xylene in the steam condensate. The TD-4100 served two functions at this facility; a leak detection tool to prompt mechanical repair of heat exchangers, and economic tool to protect fouling cooling towers and other downstream processes.