Flow Level Pressure 45 Cheniere Select Energy Partners for Bi-Directional LNG Plant


Yokogawa Electric Corporation (Netherlands) has been selected to supply the integrated automation and safety system for the new liquefaction trains at Cheniere's LNG facility in Sabine Pass, Louisiana, USA, which is being developed by its Cheniere subsidiary Sabine Pass Liquefaction, LLC (SPL).


SPL is the first company with US Department of Energy approval to export liquefied natural gas (LNG) to non-Free Trade Agreement countries. The development of liquefaction services at the Sabine Pass LNG receiving terminal in Cameron Parish, LA, will transform the terminal into a bi-directional facility capable of liquefying and exporting natural gas and importing and re-gasifying foreign-sourced LNG.


We are proud to be part of this groundbreaking liquefaction project in the US, says Chet Mroz, President and CEO of Yokogawa Corporation of America: Yokogawa has a 25% worldwide market share for LNG plants as well as a long-standing relationship with Cheniere Energy, beginning with their purchase of Yokogawa's CENTUM(R) CS 3000 control system for the original gasification facility at Sabine Pass in 2006.


Yokogawa's CENTUM VP integrated production control system was selected for the new liquefaction facility. While CENTUM VP is classified as a distributed control system (DCS), it goes beyond a traditional DCS by offering a more intuitive human-machine interface and a large-capacity field control station to process data faster while maintaining exceedingly high reliability. The dual-redundant configuration of processor cards combined with pairing each processor card with two CPUs (pair & spare configuration) ensures uninterrupted operation and high availability.


SPL will also utilise the ProSafe(R)-RS integrated safety instrumented system (SIS) from Yokogawa for the site. ProSafe-RS delivers the world's first completely integrated SIS for DCS to simplify deployment, operation, and maintenance. Until now, two separate monitoring and operating environments were required for the DCS and SIS. ProSafe-RS eliminates the need to implement separate communications and distinctive hardware architectures for the DCS and SIS, thus fast-tracking implementation at Sabine Pass, lowering overall costs, and simplifying operation and maintenance.


Reader Reply Card No 148 Level Meter for Liquids and Solids Introduced


KROHNE (USA), a global technology specialist in the development, manufacture and distribution of accurate, reliable and cost effective measuring instruments for the process industries, announces the new OPTIFLEX 2200 C/F level meter for liquids and solids, which features software-based Dynamic Parasite Rejection (DPR) technology that eliminates false reflections caused by environmental disturbances and product build-up. The 2-wire device is the newest addition to KROHNE’s Time Domain Reflectometry (TDR) guided radar level meters.


OPTIFLEX 2200 C/F is a cost-effective device for tank and silo applications in the chemical industry, as well as in the oil and gas, energy, waste water, mining or pulp and paper sectors. It is ideal for replacing traditional level meters that require higher maintenance, including displacer, RF capacitance, conductive and pressure level meters.


Available with a variety of probes to measure liquids up to 130 feet (40 meters) and solids up to 66 feet (20 meters), the OPTIFLEX 2200 C/F can handle process temperatures up to 570°F (300°C) and pressures up to 580 psig (40 bar).


Unlike other level meters, the OPTIFLEX 2200 C/F provides a remote converter that can be installed up to 328 feet (100 m) from the probe. The snap coupling system permits removal of the housing under process conditions. The level meter complies with the requirement of the safety integrity level SIL 2 (according to IEC 61508) and can be used for switch or transmitter function in safety-related systems.


Because the state-of-the-art TDR technology used in the OPTIFLEX 2200 C/F measures level independent from such physical property variations as dielectric constants, pressure or density, the meter is not affected by variations in product characteristics.


Reader Reply Card No 149 New Low Flow Flare Gas Flowmeter


The new T17 ultrasonic transducer from the Sensing business of GE Measurement & Control provides accurate measurement of gas flow down to 0.1 f/s (0.03m/s) rates and is ideally suited to measuring low flare gas flows when used with GE’s GF868 or XGF868i digital flowmetering systems. This offers a simple yet elegant solution to the need to be compliant with emission regulations in flaring, in oil and gas, refining and in the chemical and petrochemical sectors.


“This new addition to our flowmetering capability complements our existing flare gas portfolio, following on from the introduction of our high flow meter last year,” explains Jed Matson, product manager at GE. “Low flow represents the most frequent flaring scenario and with the introduction of the new T17 transducer we now have the capability to provide accurate and reliable flaring flow metering right across the flaring flow range.”


Flaring is used to burn off hydrocarbons and other waste gases, under both routine and emergency conditions. Pollution control regulations govern the amount of waste which can be vented and flaring needs to be closely monitored and recorded by accurate flowmeters to comply with this legislation. Flare gas flowmetering also serves other important functions such as tracking or preventing leakage losses, conserving energy by reducing unnecessary flaring, controlling the amount of steam fed to the flare tip and accounting for total plant throughput of material. Ultrasonic flow measurement is well-suited to flare gas applications, as it is independent of gas properties, measures without a pressure drop, does not interfere with flow and is highly accurate and reliable. Digital flowmeters, such as GE’sXGF868i, are designed to handle flare gas measurement problems such as unsteady or bi-directional flow rates, pulsating pressure, varying gas composition and temperature and harsh environments.


The new all-welded, titanium T17 transducer is fully tested by CEESi, is certified to CSA/C-US, ATEX and IECEx for hazardous zone operation. It can be used in pipes from 12in to beyond 66in in diameter, at operating temperatures from - 67°F to 300°F and operating pressures from 12.7 to 1500psia.


Reader Reply Card No 150 Reader Reply Card No 151


From refining through to petrochemical production, ABB’s measurement products can help you achieve safe, efficient process performance. With certifications including TÜV, NACE, ATEX, FM, FMC, IECEx, CSA, SAA, GOST, INMETRO, PCEC and KGS, ABB’s measurement products can deliver improvements in all aspects of oil, gas, refining and petrochemical plant operation.


See how by scanning the QR code below or email moreinstrumentation@gb.abb.com ref. ‘Oil & Gas’.


Enhance production efficiency without compromising safety


APRIL / MAY 2013 • WWW.PETRO-ONLINE.COM


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