Research On The Octane Number And Heating Value Of Methanol Gasoline

With China's rapid economic development, the demand for energy rapidly increases. Thus, According to the actual situation in China's energy and resources, we must carry out energy diversification strategy. Methanol fuel as Vehicle alternative energy has fully shown its clean, environmentally friendly advantages. The development of coal based methanol fuel, not only can save oil resources, but also promote the development of coal chemical industry, with good economic and environmental benefits.China's methanol fuel research and extension work has made gradual progress, but most people still do not know enough of methanol gasoline; they still have questions about its power, economy. When methanol was used as vehicle fuel, heating value becomes the main parameters of methanol, the experimental determination of calorific value of methanol and the establishments of alcohol fuel heating value of the estimated theoretical relationship are of great significance. In addition, there is no clear method of calculating the octane numbers of different proportional methanol gasoline. These two aspects were studied in detail. The study obtained conclusions as follows.Three kinds of basic part oil of gasoline were experimentally researched in this article, also physical and chemical characteristic of them were analyzed, by using the linear regression to find out the relationship between the physical and chemical characteristic and octane number. According to the experiment, distilled gasoline has low octane number but high heating value; Catalytic reforming gasoline has low heating value but high octane number; the octane number and heating value of catalytically cracked gasoline were between them.Therefore, the increase of the proportion of catalytic reforming of gasoline, not only can improve the octane number of gasoline, but also can improve the quality of oil. Distilled gasoline can also be used as the part oil of methanol gasoline, which can relatively complemented in octane number, heating value, low-temperature start performance.In this paper, the heating values of 1 methanol gasoline were measured and a new formula was created also; through the analysis and comparison, the re-fitting formula can be used to calculate heating value of fuel. Finally, engine bench experiments were done in the power, economy and emission characteristics. The power of methanol gasoline can meet the requirements of vehicle fuel, And with higher economic efficiency, lower conventional emissions, unconventional emissions can be controlled and reduced by taking measures.