利用觸媒燃燒法處理冷凝後油氣之研究

Study on the Treatment of Gasoline Station VOCs with Catalytic Combustion

薛仲娟(Chung-Jeng Shay) ； 何毓珊(Yu-San Ho) ； 許詩典(Shing-Teng Shu) ； 陳枋萱(Feng-Sham Chen) ； 魏思怡(Shing-I Wen) ； 佘尚樺(Sun-Hwa So) ； 連奕婷(I-Ting Len) ； 張章堂(Chang-Tang Chang)

《宜蘭技術學報》 2期 (1999/06) Pp. 57-64

https://doi.org/10.6179/nit.1999.02.17

摘要

觸媒燃燒試驗是將有機溶劑蒸氣與空氣混合，經加熱器加熱後，達一定的處理溫度，經觸媒床的觸媒氧化，然後經三種油氣所需處理溫度由低至高依序為92無鉛汽油油氣、95無鉛汽油油氣、高級汽油油氣。管道排至抽氣櫃，整理各條件處理溫度與出口濃度之關係，由實驗得知，未經冷凝各種油氣處理效率隨溫度提高而加大；經冷凝後各種油氣處理效率達90%，處理溫度隨濃度提高而加大；相同的入流濃度下三種油氣所需處理溫度由低至高順序為92無鉛汽油油氣、95無鉛汽油油氣、高級汽油油氣。冷凝回收後由於低分子所占的比例較高，因此較容易分解，所以處理溫度會降低。為有效回收油氣，一般乃冷凝之後，再予以處理，因此本研究將評估各種冷凝溫度之觸媒處理特性與最佳操作條件。

關鍵字

觸媒燃燒 ； 油氣 ； 處理溫度 ； 處理效率

並列摘要

The concentrations of VOCs emitted from gasoline station are high and harmful to human-being. It is benefit to recover the VOCs with recovery system. However, the flue gas of the recovery system is usually emitted to atmosphere directly. It is necessary to treat the fugitive VOCs to avoid pollution. Generally, the adsorption beds absorption scrubbers, condensate system, and incinerators are able to control the waste gas. In this study, we use catalytic incinerator to evaluate the performance since it has the economic and high-efficiency characteristics. There are three kinds of gasoline used in our test, comprising of leaded, 92 unleaded, and 95 unleaded gasoline. Seven different temperature (50, 100, 150, 200, 250, 300, 350℃)and four types of flow rate (10, 30, 50, 100 L/min)are run in this study. The test results show that the most of VOCs can be destroyed by catalytic combustion at temperature 250 ℃, even the inlet concentration 10,000 ppm. The efficiency is little different between the three kinds of gasoline. Usually, it is the easiest to control the VOCs from 92 unleaded gasoline than others. Whereas, it is the hardest to treat the VOCs from leaded gasoline than others since they have high molecular weight.

並列關鍵字

Catalytic Combustion ； VOCs ； Treatment Temperature ； Treatment Efficiency