Biogas engine: an emptying interval that can be up to 50% apart
Vianney Fort, Sales & Business Development Manager at Chevron
How can engine lubrication contribute to optimizing the performance of installations running on landfill gas, digester gas, biogas or acid gases?
The challenge is to know how to accompany the progress made by gas engine manufacturers. In particular, recent years have seen the emergence of the use of steel to replace aluminum. As a result, engines reach higher temperatures over longer periods of time. These parameters have had to be integrated by oil manufacturers to help operators extend the life of their engines and increase their availability to optimize their profitability.
What are the specifics of biogas?
Biogas engines, like landfill gas engines, operate with acid gases that create extreme operating conditions for the lubricants. The presence of acids can cause corrosion and rapid oil degradation, which reduces engine performance and life. It is therefore important to use lubricants specifically designed for this type of application. Thanks to their specific formulation, they also extend oil change intervals, which reduces equipment downtime and maintenance costs. For example, Texaco HDAX 9500 SAE 40 oil, launched last January, has demonstrated in real-life situations that it can extend drain intervals by up to 50% while minimizing the negative effects of ash deposits.
Why such an improvement?
The oil contains ashless dispersants, oxidation inhibitors and metal detergents designed to prevent wear, carbon and varnish deposits, while providing advanced control of basicity retention (TBN), oxidation and nitration in engines. Thanks to its performance, HDAX 9500 has already been approved by Jenbacher.
Your oils benefit from a follow-up program. What is it all about?
Regular analysis of oil samples allows us to identify the specific needs of each installation. Based on the analyses and their history, we are able to understand the changes in the equipment and establish a precise maintenance schedule so that downtime can be reduced and the risk of failure can be eliminated.