NEX XT - X-ray transmission gauge for real-time analysis of S in crude oil and other heavy hydrocarbon oils

When sulfur in crude and intermediates needs to be determined, the best place to do that is online. To that end, Rigaku has designed and manufactured a unique product: the NEX XT.

This in-line sulfur analyzer provides real time analysis for blending, switching and quality control purposes. With a sulfur LLD = 45 ppm in 60 seconds, and a working range of 200 ppm to 6% S, the versatility of this unit is unmatched. Having typical count times of 30 sec or less means that the flow of product through the processes is virtually seamless. Added functionality of automatic density output and density correction always compensate for these changes, and the correction is seamless for the operators. This ease of use, coupled with consistent results (repeatability <1% relative), streamlines the entire process. The rugged construction and ability to operate under extreme conditions of pressure and temperature – stream pressures up to 1480 psig and temperatures up to 200°C with flow rates up to 53 gal/min (200 L/min) – make the NEX XT an extremely useful online gauge.

The NEX XT can be used in refineries for feedstock blending, process QC, and heavy oil upgrading. It can be used for analyzing marine bunker fuel during blending operations, as it has been qualified for MARPOL ANNEX VI compliance. Finally it has on-line capabilities for pipelines and remote terminals to facilitate real-time blending and remote crude collection QC. It is also used for pipeline interface detection.