| URN | etd-0702110-150918 | Statistics | This thesis had been viewed 1366 times. Download 14 times. |
| Author | Ping-Huang Chung | ||
| Author's Email Address | 536717@cpc.com.tw | ||
| Department | hazards | ||
| Year | 2009 | Semester | 2 |
| Degree | Master | Type of Document | Master's Thesis |
| Language | zh-TW.Big5 Chinese | Page Count | 86 |
| Title | The Feasibility of Reducing the Use of Additive MTBE in Petroleum Products | ||
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| Abstract | The Feasibility of Reducing the Use of Additive MTBE in Petroleum Products Student”GPing-Huang Chung Advisors”GLiang-Ching Chen Graduate School of Technology for Hazards Mitigation Tung Nan Institute of Technology Abstract Methyl tert-butyl ether (MTBE) is generally used as an additive in petroleum products to resist the engine knock in vehicle. However, it can also pollute the groundwater and influence the health of human body. Therefore, if the use of MTBE can be reduced, it will not only decrease the cost and the price of petroleum products but also lower the impact on the environment. This research was focused on the feasibility of reducing the use of petroleum products additive- MTBE, and its effect on octane value. MTBE is a kind of gasoline oxy-additive which can increase the octane value and reduce the engine knock of vehicle. In this research, the CFR Engine was chosen to exam how different amount of MTBE affect the octane value in gasoline and if the value can meet the acceptance criteria ASTM-D3244. The researcher adopted statistical analysis to evaluate the increment of rejection risk and the cost-benefit effect while reducing the use of MTBE. In addition, Analytic Hierarchy Process (AHP) was also adopted to know the different importance that vehicle users attached to price, engine knock, toxicity, performance, and mechanical factors. These results were taken as a basic frame to evaluate the feasibility in reducing the use of additive MTBE. Taking 95 Unleaded Gasoline as an example, the result of the engine experiment on 100 different samples shows that when octane value was reduced from 95.3 to 95.1, the increment of rejection risk will be increased to 2.9x10-4 as compared to 95.3 octane value design. On one hand, the rejected 95 Unleaded Gasoline will be demoted to 92 Unleaded Gasoline; on the other hand, reducing the octane value means the lower cost of additive MTBE. Through the cost-benefit analysis, the annual net benefits can be saved up to 150 million NT dollars. The B/C Ratio is about 5. In addition, after investigating vehicle users through questionnaires through AHP, the important weight that vehicle users attached to are ranking from price (0.41), engine knock (0.24), toxicity (0.22), performance (0.07), and mechanical factors (0.06). This result means price, engine knock, and toxicity of gasoline are the three major factors for vehicle users. Overall, reducing the use of additive MTBE in petroleum products is quite feasible. Research: octane number, MTBE, cost-benefit analysis, analytic hierarchy process |
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| Files | indicate in-campus access immediately and off-campus access at one year | ||
| Date of Defense | 2010-06-25 | Date of Submission | 2010-07-09 |