| 工艺参数对轻石脑油裂解结焦的影响 |
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| 引用本文： | 栾小建,徐宏,王志远,周建新,朱巍. 工艺参数对轻石脑油裂解结焦的影响[J]. 现代化工, 2011, 0(3): 58-62 |
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| 作者姓名： | 栾小建 徐宏 王志远 周建新 朱巍 |
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| 作者单位： | 1. 华东理工大学机械与动力工程学院化学工程联合国家重点实验室,上海,200237
2. 华东理工大学机械与动力工程学院化学工程联合国家重点实验室,上海,200237;中国石化扬子石化有限公司,江苏,南京,210048 |
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| 基金项目： | 上海市重点学科建设项目,扬子石化有限公司资助 |
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| 摘 要： | 为了研究工艺参数对结焦的影响,以轻石脑油为裂解原料,在设定工艺条件下进行了HP40合金试样氧化表面的结焦试验。利用扫描电子显微镜(SEM)、能量色散谱仪(EDS)对HP40合金试样表面的氧化层和焦层进行了表征。考察了裂解时间、裂解温度和稀释比对其结焦的影响。结果表明,HP40合金试样表面氧化层多孔,为尖晶石结构,尖晶石的粒径最大约为0.5μm。在裂解温度为850℃时,随着时间增加,结焦量、催化焦丝直径增加,焦丝直径生长速率约为0.027μm/min;在裂解时间为20 min时,随着温度增加,催化焦丝直径增加,焦丝直径生长速率约为0.0051μm/℃,当焦丝直径增加至0.8μm左右时,催化结焦过程结束,热裂解结焦开始。稀释比增大,结焦速率降低。
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| 关 键 词： | 结焦 HP40合金 轻石脑油 工艺参数 影响 |
Influence of process parameters on coke formation during cracking of light naphtha |
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| LUAN Xiao-jian,XU Hong,WANG Zhi-yuan,ZHOU Jian-xin,ZHU Wei. Influence of process parameters on coke formation during cracking of light naphtha[J]. Modern Chemical Industry, 2011, 0(3): 58-62 |
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| Authors: | LUAN Xiao-jian XU Hong WANG Zhi-yuan ZHOU Jian-xin ZHU Wei |
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| Affiliation: | LUAN Xiao-jian1,XU Hong1,WANG Zhi-yuan1,ZHOU Jian-xin1,2,ZHU Wei1(1.State-Key Laboratory of Chemical Engineering,School of Mechanical and Power Engineering,East China University of Science and Technology,Shanghai 200237,China,2.Yangzi Petrochemical Company Ltd.,SINOPEC,Nanjing 210048,China) |
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| Abstract: | To study the influence of process parameters on coke formation,a test for the coking is carried out on the oxidized surface of HP40 alloy specimen under setting conditions with naphtha as steam cracking material.The oxidized surface of HP40 alloy specimen and the cokes formed in the coking test are characterized by scanning electron microscopy(SEM) and X-ray energy dispersive spectroscopy(EDS).The influence of cracking time,cracking temperature and diluted ratio on coke formation are investigated.The result... |
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| Keywords: | coking HP40 alloy light naphtha process parameters influence |
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