The Stability of Lubricant Oil Acidity of Biogas Fuelled Engine due to Biogas Desulfurization

7th International Conference on Key Engineering Materials

材料科学;工业技术

Tirta Nindhia, Tjokorda Gde^1 ; Surata, I Wayan^1 ; Wardana, Ari^1

Deparment of Mechanical Engineering, Engineering Faculty, Udayana University, Bali, Jimbaran

80361, Indonesia^1

关键词: De-sulfurization process;    Engine lubricants;    Four-stroke engine;    Gas impurities;    Lubricant oil;    Lubrication oil;    PH measurements;    Time use;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/201/1/012021/pdf
DOI  :  10.1088/1757-899X/201/1/012021

来源: IOP

【 摘 要 】

This research is established for the purpose of the understanding the stability of the acidity of lubricant oil in biogas fuelled engine due to the absence of hydrogen sulfide (H2S). As was recognized that other than Methane (CH4), there are also other gas impurities in the biogas such as carbon dioxide (CO2), hydrogen sulfide (H2S), moisture (H2O) and ammonia (NH3). Due to H2S contents in the biogas fuel, the engine was found failure. This is caused by corrosion in the combustion chamber due to increase of lubricant acidity. To overcome this problem in practical, the lubricant is increased the pH to basic level with the hope will be decrease to normal value after several time use. Other method is by installing pH measurement sensor in the engine lubricant so that when lubricant is known turn to be acid, then lubricant replacement should be done. In this research, the effect of biogas desulfurization down to zero level to the acidity of lubricant oil in the four stroke engine was carried out with the hope that neutral lubrication oil to be available during running the engine. The result indicates that by eliminating H2S due desulfurization process, effect on stability and neutrality of pH lubricant. By this method the engine safety can be obtained without often replacement the lubricant oil.