Development of Gas Engine Oils for Corrosive Gas Service
The decomposition of organic substances at landfill and biogas sites creates a media consisting of methane, carbon dioxide and nitrogen. The high calorific value of this gas makes it a useful source of fuel for power generation. This enables a beneficial recycling of man-made and natural resources while yielding an attractive economic return for operators. Engines operating in these conditions are typically required to run continuously at full load and any maintenace downtime can result in significant lost revenues. Due to the nature of the sites, the fuel gases generally contain a high level of contaminants introduced from the materials from which it is produced. This can result in elevated levels of sulphur and halogen in landfill gas and sulphur from biogas sources, which is not seen or experienced at equivalent natural gas sites. During the combustion process these contaminants lead to the production of corrosive acids which can result in degradation of yellow metal engine components (i.e. copper coolers and lead bearings). Further, at landfill sites the presence of silioxanes in a number of household products results in their deposition upon various parts of the engine. Both corrosion and the deposition of materials upon the engine can be avoided with the correct choice of engine oil lubricant. This paper will detail the development of a new engine oil specifically targeted to withstand the conditions experienced at landfill and biogas sites. The development of bench tests to aid the screening of formulations will be discussed and compared to existing ’best in field’ commercial products; distinctions between formulations for natural gas engines and those required for corrosive gas service will be drawn. The results of continuing field trials with the new formulation will be also be presented. Following the completion of a successful field trial a new, corrosive gas service specific, additive technology will be commercialised.
Andrew S. Bailey
Infineum,England
国际会议
上海
英文
1-7
2013-05-13（万方平台首次上网日期，不代表论文的发表时间）