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中文摘要：
引言 气流床气化技术因具有煤种和粒度适应性强、操作压力和温度高、碳转化率高、生产强度大等特点，而广泛应用于煤气化领域。气流床内物料运动特点是煤粉颗粒与气化剂同时进入气化炉，颗粒在气流的曳力作用下弥散于整个床层内并最终被夹带离开床层。典型的气流床气化技术有Texaco水煤浆气化技术、Shell粉煤气化技术和华东理工大学开发的多喷嘴对置式水煤浆气化技术。
英文摘要：
The parameters in particle residence time distributions in the entrained-flow gasifier as the important the gasification process were studied by using a new stimulus response method. The differences of the particle residence time distributions in the opposed multi burner entrained-flow （OMBEF） and Texaco gasifier were compared. The influence of gas velocity and particle diameter on particle residence time distributions was discussed. The experimental results showed that the new stimulus response method was reliable and could be used to measure the particle residence time distributions in the entrained flow gasifier and the particle residence time in the OMBEF gasifier was more favorable than in the Texaco gasifier. The results also showed that with increasing gas velocity and decreasing particle diameter, the mean and variance of particle residence time increased in both kinds of entrained-flow gasifier.
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