Rigaku NEX XT process sulphur gauge delivers total sulphur measurement in petroleum and crude

X-ray Transmission (XRT) gauging has long been an accepted technique for the measurement of total sulphur (S) in heavy hydrocarbon process streams. Rigaku's NEX XT is the next generation process gauge for high-level total sulphur measurement (0.02% to 6% S) of crude, bunker fuel, fuel oils, and other highly viscous hydrocarbons, including residuum.

This versatile, compact and robust X-ray Transmission / Absorption (XRT / XRA) process gauge is specifically optimised for the total sulphur analysis needs of refineries, pipelines, blending operations, bunkering terminals and other storage facilities. Applications for the NEX XT include bunker fuel blending to meet MARPOL Annex VI sulphur restrictions, interface detection of different grade fuels delivered via pipelines, refinery feedstock blending and monitoring, and the quality monitoring of crude at remote collection and storage facilities.

Pipelines, Upgrading Facilities and Refineries

X-ray transmission gauging involves measuring the attenuation of a monochromatic X-ray beam at a specific energy (21 keV) that is specific to sulphur. The NEX XT X-Ray Transmission (XRT) process gauge is specifically optimised for the total sulphur analysis needs of refineries, pipelines, blending operations, heavy oil upgrading, bunkering terminals and other storage facilities.

Applications include bunker fuel blending to meet MARPOL Annex VI sulphur restrictions, interface detection of different grade fuels delivered via pipelines, refinery feedstock blending and monitoring, and the quality monitoring of crude at remote collection and storage facilities.

MARPOL Regulations

IMO ship pollution rules are contained in the "International Convention on the Prevention of Pollution from Ships", known as MARPOL 73/78. On 27 September 1997, the MARPOL Convention was amended by the "1997 Protocol," which includes Annex VI titled "Regulations for the Prevention of Air Pollution from Ships". MARPOL Annex VI sets limits on NOx and SOx emissions from ship exhausts and prohibits deliberate emissions of ozone depleting substances. The Rigaku NEX XT is the perfect tool to assay marine bunker fuels for blending to meet emissions regulation compliance.

3rd Generation Technology

The new Rigaku NEX XT system is faster, more sensitive and far more compact than competitive systems and provides continuous, reliable detection of sulphur at pressures up to 1480 psig and 200ºC. Rigaku NEX XT can operate as a stand-alone analyser or provide real time closed loop control when tied into a blending or plant wide automation system.

Among its other key features are a simplified user interface, reduced standards requirement, automatic density compensation, automatic water compensation, password protection, and standard platform for communicating sulphur, density, and water content to a plant-wide DCS. Due to its unique design and robust construction, sample conditioning and recovery systems are typically not required.

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