Flow measurement devices for natural gas and LNG, monitoring of high-pressure natural gas injection to produce crude oil
Measurement solutions for Liquefied Natural Gas
Flow measurement devices for natural gas and LNG
Monitoring of high-pressure natural gas injection to produce crude oil
Notwithstanding pressure and temperature changes, the OPTIMASS 6400 provides long-term stable flow measurement. There is transparency over the amount of natural gas injected and consumed, this allows the operator to optimise the lift process and contribute to undisputed billing procedures with the landowner.
Complete custody transfer metering systems for LNG
From large-scale ship (un)loading to bunkering and truck loading
Our Custody Transfer (CT) metering solution measures both the volume and quality of LNG. The in-house development of flowmeters, flow computers and supervisory software guarantees seamless integration of metering and diagnostic features. KROHNE LNG metering systems can be designed as a master-duty configuration, where a Z-cross over allows periodical verification of the duty meters against a master meter. The diagnostic features of the flowmeters are used to guarantee maximum performance and lowest measurement uncertainty of the system.
LNG-Quality Release System (L-QRS)
The software solution for efficient LNG loading operations
KROHNE’s LNG Quality Release System (L-QRS) is a software solution used to minimise the risk of disputes, by automating the volume and quality measurement during (un)loading, so that manual sample handling is no longer required. Also, Bill-of-Lading and Quality Release Certificates are available instantly. Thus, the system avoids costly sample handling, laboratory tests and retrospective corrections of the bill of lading and quality certificates.
The system does NMi-certified calculations in an NMi-certified flow computer and is compliant with ISO 8943, GPA 2172, ASTM 4784 and GIIGNL. It combines analyser management and data acquisition (AMADAS) functionality to ensure the best results.
The flow computer solution for the visualisation of accurate LNG measurements
The SUMMIT 8800 allows a graphical representation of the measurement process, with all measured values shown in real-time. Up to 5 different types of meters combined in one flow computer, with CT measurements still being processed within 0.25s. The SUMMIT 8800 communicates via digital, analogue, serial and Ethernet interfaces to obtain the measurement and diagnostics from the field converters and analysers. The automatic Performance Monitoring extends recalibration intervals.
CalSys Analyser Management software
The Analyser Management software for dynamic LNG quality measurement with certified Quality Release Modules
For an effective performance monitoring of quality measurement instruments (QMI) and automated analyser validation as well as statistical process control. Amongst others per ASTM D3764, ASTM D6299 and OP 97-30425.
Quality and composition-based measurement of drying, filtering and liquefaction
After the natural gas entering the liquefaction plant has been measured by a Custody Transfer metering system, the filtering and liquefaction process can start. During that process, KROHNE Ultrasonic OPTISONIC flowmeters are used to measure the natural gas flows and in the same process, the coolants are used in the cold boxes. KROHNE OPTIWAVE and OPTIFLEX level instrumentation is used to measure the level in separators, scrubbers and tanks. CalSys (AMADAS Analyser Management) software systems guarantee the performance of the analysers used to determine the quality of the natural gas and LNG.
Monitoring of loading and fuelling
KROHNE OPTIMASS Coriolis meters are used in small-scale LNG and break bulk projects to measure the amount of LNG that is loaded in a truck or bunker ship. KROHNE also supplies Custody Transfer approved delivery systems on LNG tanker trucks. These systems include an OPTIMASS Coriolis flowmeter, a SUMMIT 8800 flow computer and a ticket printer, all per local metrology regulations.
Regasification – Converting LNG to natural gas
In receiving terminals KROHNE ultrasonic flowmeters are used to check the delivered amount of LNG and the amount of boil of gas that is being returned to the shuttle during offloading. During regasification, KROHNE flowmeters are used to measure natural gas, with process or custody transfer accuracy, and seawater that is pumped through the heat exchanger.
Storage and shipping – Delivery flow monitoring of cryogenic LNG
For the loading and unloading of LNG shuttle tankers, KROHNE flowmeters and Custody Transfer metering systems are used to measure the volume of LNG and Boil-Off gas. KROHNE also provides analyser systems to measure the LNG quality and calorific value. KROHNE L-QRS software is used to fully automatically issue the Bill of Lading and Quality Release Certificate directly after loading or unloading has been completed, without the need for manual sample handling.
Read more and discover the KROHNE products in the specific processes: https://krohne.com/en/industries/oil-gas-industry/liquefied-natural-gas
Product portfolio for LNG
KROHNE is your reliable partner for process instrumentation and automation. As our client, you benefit from our ability to solve your applications with suitable measurement solutions. We offer a complete product portfolio of flow, temperature, pressure and level devices, industry-specific system solutions and complementary services.