Email Document Reference

Enter your email address below and the reference for this document will be sent to shortly from webmaster@ceesi.com.

Title: ON-LINE MONITORING OF TRACE H2O USING TUNABLE DIODE LASER ABSORPTION SPECTROSCOPY (TDLAS) TO OPTIMIZE RECOVERY OF NATURAL GAS LIQUIDS
Author: Greg Lankford, Dr. Xiang (Sherry) Liu, and Sam Miller
Source: 2022 Appalachian Gas Measurement Short Course
Year Published: 2022
Abstract: Molecular sieve dehydration must be used to obtain the very low H 2O concentration ( 0.1 ppmv) required in low temperature and cryogenic processes for NGL extraction and liquefied natural gas (LNG) production. Instrumentation exhibiting quick response and accurate water concentration measurements are critical to optimizing operation of the molecular sieve unit and maximizing the life of the sieve. This paper explores the application of Tunable Diode Laser Absorption Spectroscopy (TDLAS) as a fast, accurate, robust, and reliable technology for measuring moisture at the outlet of the Mole Sieve Dehydration process. An overview of the technology explaining strengths, benefits, and unique attributes of the technology will be given. Side by side comparisons of TDLAS versus quartz crystal microbalance (QCM) technology at DCP Okarche as well as versus Aluminum Oxide probe technology at Enterprise Meeker will be reviewed. Return on investment calculations for both examples will be provided. Examples of application of the instrument to switch cycles on demand by running to water breakthrough at Superior Pipeline Chaney Dell Plant.

In order to prevent spam and automated file downloads for documents within the Measurement Library, please follow the instructions below and then you will be able to email a reference to this article.