MARPOL Convention

The International Maritime Organization (IMO) has developed the International Convention for the Prevention of Pollution from Ships (MARPOL 73/78) to address ship pollution. The MARPOL Convention was revised in September 1997 and is known as the '97 Agreement'. The ship air pollution prevention regulations in the agreement stipulate the upper limits of NOx and Sox emissions from ship exhaust and prohibit intentional emissions of ozone depleting substances. Rigaku NEX XT is a perfect monitoring tool for marine fuel to ensure compliance with laws.

Excellent third-generation XRT technology

Rigaku NEXXT has faster system analysis speed and higher sensitivity compared to other products, and can provide consistently reliable analysis results even at a pressure of 1480psi. When oil blending or factory automation control is carried out, Rigaku NEX XT can be used not only for independent analysis but also for real-time closed-loop control.

The instrument features a simple user interface, low external requirements, automatic density compensation, password protection, and convenient interaction with DCS. Its unique design and structure eliminate the need for sample pretreatment and recycling systems.

The Rigaku third-generation X-ray transmission total sulfur analyzer NEX XT (0.02% to 6%) represents a new era in the analysis of sulfur content in crude oil, marine fuel oil, fuel oil, residual oil, and other high viscosity hydrocarbons.

Refineries and oil pipelines

The X-ray transmission method total sulfur analyzer is mainly used in refineries, oil pipelines, blending, heavy oil/residue processing, gas stations, and other storage facilities.

It can also be applied to the interface detection of different grades of oil products such as ship fuel blending, sulfur treaty in MARPOL convention, oil pipelines, crude oil, and quality control of automatic collection and storage of crude oil.

Technical parameters and advantages

• Range: 200ppm~6% wt

• Simple user interface

• The fastest analysis cycle only takes 1 second

• Can withstand pressure of 1480psi

• The maximum temperature of the sample can reach 200 ℃

• On site calibration update

• No sample pretreatment and recycling system (typical advantage)

• The pollution of the flow pool window does not affect the analysis results

• No radioactive isotopes

• No need for daily maintenance

• No need for blowing

XRT technology

The analyzer adopts X-ray transmission technology, The Rigaku NEX XT analyzer continuously measures samples in the flow cell. In the flow cell, a low-power X-ray source is used to irradiate the sample inside the flow cell, and the detector on the other side of the X-ray source detects the attenuated X-rays. The sulfur content is proportional to the degree of X-ray attenuation. Compared to older XRT analyzers, Rigaku has no radioactive isotope source and requires daily maintenance.

Rigaku Corporation

Since its establishment in 1951, Rigaku has been at the forefront of industrial analytical instrument technology. Through hundreds of technological innovations, Rigaku has become a leader in the field of X-ray instruments. We have over 1100 employees worldwide and have operational centers in Japan, the United States, Europe, South America, China, and other regions.