19.7 C
Istanbul
05/10/2024
Product Review

Great in grease

Mehdi Fathi-Najafi

 

 

Recent studies show that the NYBASE® range offers major benefits when used to replace paraffinic Group I oil in existing lube and grease formulations.

“The global race towards the rationalization of paraffinic Group I refineries will inevita­bly affect most of the formula­tions within the industrial lube segment. In 2015, almost 25 percent of the paraffinic Group I capacity disappeared in Europe, and now the restruc­turing has reached the Middle East and Asia-Pacific regions,” says Nynas’ grease specialist Mehdi Fathi-Najafi.

This fundamental change within the oil refining industry has created a vacuum in the lube and grease market for a similar grade that can be used as a ‘drop in’ substitute with minimum adjustment. Nynas’ solution to the challenge was to develop a series of blends of paraffinic Group II and hydro­treated naphthenic oils – the NYBASE grade.

“In fact, NYBASE could be called ‘paraffinic Group I +’ as the oils display better low temperature characteristics and significantly lower sulphur content than paraffinic Group I,” explains Mehdi Fathi-Najafi.

Comparative studies were conducted in order to evaluate the potential of the new range of base oils as a replacement for Group I oil in lithium grease formulations, which represent more than 55 percent of the global production.

“Our studies show that the new range enables finished products of improved per­formance, whilst also rationalizing the number of base oils in formulations. Hence, producers will be able to use just one oil product, from one single tank, for their produc­tion. This will simplify the logistics chain, reduce the risk of contamination, and enable producers to rationalize their operations and subsequently reduce capital employment at their sites,” he states.

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“Drop in” with added benefit

The NYBASE® range will help producers of lubes and greases requiring the viscosity, solvency power and polarity typically dis­played by Group I oil, as the base oil production continues to shift towards Groups II and III.

A comparison between grease samples made with two of the new high viscosity base oils and a tradi­tional oil grade showed that the new oils are well suited to replace paraffinic Group I. In fact, NYBASE oils can improve their perfor­mance. For example, a significant improvement in low temperature mobility was observed as an added benefit, as shown in this flow pressure graph, promising the opportunity to make grease products that flow smoothly at temperatures down to -35°C. 

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