TOC analyzers for monitoring low-TOC values precisely and reliably
Total organic carbon (TOC) is an important quality parameter in the various manufacturing and process environments that depend on ultrapure water. When TOC content is too high, it can adversely impact the performance of water treatment systems, compromise high-precision machinery or contaminate batches. Endress+Hauser has launched its CA78 and CA79 TOC analyzers (FIG. 1) to provide continuous and precise monitoring to ensure stable operations, regulatory compliance and high-quality products.
These TOC analyzers utilize proven UV-oxidation and differential conductivity measurement, the most-established method for reliable TOC trace analysis in ultrapure water. The fast response time (t90) of 50 sec enables quick control system and personnel reaction in the event of water quality deterioration, reducing contamination, product loss and costs.
The analyzers’ user-friendly modular design and easy accessibility to components simplify maintenance and minimize operating costs. Additionally, Endress+Hauser’s worldwide service network provides end users with complete measuring point management throughout plant lifecycles, including installation qualification and operational qualification.
The CA78 TOC analyzer supports safe operations in many applications, including but not limited to:
The CA78 is configurable to meet various requirements in the power and semiconductor industries. For example, the instrument option for measurement in water with conductivity values closer to 10 µS/cm is perfectly-suited for deionized water in power plants. When multiple TOC measuring points are required, the three-channel configuration allows for multiple streams to be run through one analyzer, which reduces capital expenditures.
With the introduction of the CA78 and CA79 analyzers for low-TOC measurement ranges, Endress+Hauser is rounding out its liquid analysis solutions for critical parameter measurement.
The CA78 supplements Memosens CLS15E contacting conductivity sensors, Liquiline System CA80SI silica analyzers, CA76NA sodium analyzers, and SWAS panels for reliable, low-maintenance solutions in a variety of sectors. The CA79 complements the Memosens CPS61E pH sensor, Memosens COS81E oxygen sensor, and Memosens CLS82E conductivity sensor for critical parameter measurements.
These analyzers each store critical process, calibration and sensor data locally, with transmission to a central process control and documentation hub, which is especially important in highly-regulated industries. This plethora of high-precision instruments provides end users with a complete portfolio of sensors, photometers and TOC analyzers—these measurements can be monitored and managed at a single source.
Hazardous location linear position sensors monitor structural integrity of LNG storage tanks
With the significant rise in demand for liquified natural gas (LNG) exports to Europe in the wake of supply shortages from Russia, liquefication and export facilities in the Gulf must prioritize the reliability and regulatory compliance of LNG tanks that store large reservoirs of LNG. NewTek Hazardous Location Position Sensors (FIG. 2) monitor the structural integrity of LNG tanks, helping to meet Federal Energy Regulatory Commission (FERC) regulations for structural health monitoring.
To prepare LNG for export, natural gas is cooled to cryogenic temperatures at liquefication facilities, then stored as a liquid until pumped into LNG tanker ships for export. LNG storage tanks are double-walled, consisting of an inner container that holds the liquid and an outer container of vapor pressure that insulates it and serves as a backup in the event of a leak. NewTek Hazardous Location LVDT Position Sensors measure the inner tank position in relation to the external tank to provide operators with a complete picture of any movement of the structure caused by thermal contraction or expansion in any direction, as well as the settling or shifting of the tank foundation.
The sensors offer extremely accurate displacement measurement that is essential to monitoring the spacing between the tank containers, which is inaccessible by operators for years at a time. In operation, linear variable differential transformer (LVDT) brackets are affixed to at least six locations along the outer tank at 60° apart. The LVDT core rod is connected to the wall of the inner tank. The Hazardous Location LVDT provides absolute output with no long-term drift, which is essential as measurements are recorded once every quarter. Serving as part of a health monitoring solution for LNG tanks, the sensors ensure the quality of the tank’s structural performance and enable operators to assess a tank’s condition after a major event, as is required by the regulations.
Approved for use in Class 1, Zone 0 and Zone 2 locations, the hazardous location certifications of NewTek’s NT-HL-750 Series of LVDT are preferred in this application. Even though the space between the inner and outer tank containers is normally filled with nitrogen, a leak in the inner tank can result in gas seeping into the space between the tanks where the sensors operate. Intertek-approved and holding an ETL certification for use in hazardous locations throughout North America, the sensors also operate safely and accurately in hazardous and explosive environments with the presence of flammable or ignitable gases and liquids, such as those found in refining and petrochemical plants and pipelines.
Moisture measurement technology
Panametrics, a Baker Hughes business and industry leader in flowmeters and moisture, oxygen and hydrogen measurement systems, has launched its new moisture measurement technology, HygroProII.
The HygroProII is an intrinsically safe, compact, loop-powered display transmitter. Designed specifically to meet the demands of rugged industrial and oil and gas applications, it will replace the original HygroPro.
Using Panametrics’ state-of-the-art aluminium oxide FX sensor, the HygroProII can accurately measure moisture in gases and hydrocarbon liquids across dew/frost point temperatures ranging from –110°C–20°C. Optimizing performance, the HygroProII provides customers with extra measurement data through its HART digital output and is also fitted with integrated pressure and temperature sensors.
The HygroProII will support customers’ critical applications where precision, accuracy and reliability are essential. These include moisture measurement in natural gas processing to ensure quality and prevent corrosion, hydrogen recycle streams in refineries to optimize catalyst performance, and a myriad of petrochemical processing applications where the presence of water vapor impacts product quality and yields. Panametrics’ new technology will also support energy transition applications including: biogas upgrading; carbon capture and storage; and hydrogen production, transportation and storage.
Control system update lays foundation for software-driven, data-centric automation platform
Emerson has released a new version of its DeltaV™ distributed control system (DCS). Version 15 of the Delta V DCS helps plants digitally transform operations through improved production optimization and enhanced operator performance (FIG. 3). New software designed to reduce the burden of IT support and modernization spend coupled with expanded analytics will help increase flexibility and speed to market and drive operational improvements.
Market forces and public expectation are putting more pressure than ever on manufacturers to drive improved performance and sustainability. Meeting these goals, especially in an era of personnel shortages, means making the most of available data. DeltaV version 15 expands access to critical data to provide every operator with actionable decision support. New infrastructure makes automation easier to set up and maintain while real-time analytics and an improved human-machine interface (HMI) help operators improve situational awareness.
Project and operations teams rely on virtualization to reduce the hardware and energy footprint of the automation system while simultaneously increasing its availability. DeltaV now supports a hyperconverged infrastructure (HCI) virtualization option that can be deployed in half the time of a traditional virtualization setup. DeltaV HCI is easy to scale and maintain and delivers improved performance. The HCI platform is easily expandable and scalable, allowing users to future-proof their investment, and is the foundation of the DeltaV evolution into a data-centric and software-defined system.
Users can increase their speed to market through the new Delta V Spectral Process Analytical Technology (PAT), which integrates two analytics solutions with the DeltaV DCS for real-time closed-loop control.
Enhancements to DeltaV Live, a modern HTML5-based, built for purpose HMI, empower operators with easy access to expert insights for more effective, efficient decisions that drive better performance and help personnel of any skill level. Teams can also unlock anytime, anywhere access to digital twin simulations from around the globe with the new software-as-a-service Delta V Simulation Cloud, saving time and money with subscription options and facilitating easier collaboration among experts.
Easier, more flexible I/O integration lowers capital costs and improves modernizations. Built-in cybersecurity remains a priority—DeltaV version 15 is ISASecure SSA Level 1 certified and provides end-to-end cybersecurity across the whole system and at all levels.
New leak recognition system provides early warning of leaks
DENIOS has introduced the SpillGuard® leak recognition system (FIG. 4), which instantly alerts users when a leak is detected. This unique, FM-approved technology is placed within the sump of a spill containment device, or near the equipment to be monitored, and alerts users with an audible and visual alarm for a minimum of 24 hr when contact is made with a liquid. Designed for use with all essential and common liquid hazardous substances, the explosion-proof SpillGuard features intelligent, robust sensor technology in a highly resistant, electrically conductive housing. The battery lasts up to 5 yr and provides an audible signal to alert users of the need to replace it. The device is ideal for use with temperatures from 32°F (0°C)–104°F (40°C) and features a red LED light to indicate that the unit is operating safely. SpillGuard provides an economical early warning of leaky containers and equipment. It is ideal for use with containers and sumps of all sizes and types, as well as along pipelines, next to heating or cooling systems, beside hydraulic equipment, near industrial washing machines, adjacent to pump stations, or anywhere liquids are used or stored.
Update for modeling software
KBC (A Yokogawa Company) has released an update to expand the features and capabilities of its Multiflash® modeling software that enhances accuracy and fluid predictions across several disciplines and applications. It is a flexible PVT (pressure-volume-temperature) and physical properties package that can easily integrate with custom solutions and workflows. This release helps process engineers automate and optimize workflows and improve model predictions.
This update is another example of KBC’s commitment to deliver leading technologies to support industry partners on their digital transformation journey towards sustainable energy savings, emissions reductions and decarbonization. The new tool, ThermoBuilder, launched with Multiflash 7.3 technology, expands the software's tuning and data regression capabilities to offer engineers a common, accurate and customizable PVT engine for process and production optimization, assisting the industry in the journey to net zero. As the industry adapts to deeper automation through the deployment of integrated digital solutions, Multiflash 7.3 technology offers a reliable common platform for PVT modeling.
Key capabilities and features of the Multiflash 7.3 modeling software include:
With enhanced user-friendly features and the quality of models’ predictions, Multiflash 7.3 software gives engineers the ability to elevate quality and efficiency as they aim for decarbonization and automation. HP
Mike Rhodes, Managing Editor Mike.Rhodes@HydrocarbonProcessing.com