| MgO改性HZSM-5型分子筛对合成LPG的影响 |
| |
| 引用本文： | 吕永兴,吴创之,王铁军,马隆龙,熊祖鸿,周意.MgO改性HZSM-5型分子筛对合成LPG的影响[J].燃料化学学报,2010,38(3):313-318. |
| |
| 作者姓名： | 吕永兴 吴创之 王铁军 马隆龙 熊祖鸿 周意 |
| |
| 作者单位： | Key Laboratory of Renewable Energy and Gas Hydrate, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China |
| |
| 基金项目： | 国家高技术研究发展计划，国际科技合作项目 |
| |
| 摘 要： | 以Mg(NO3)2.6H2O乙醇溶液等体积浸渍分子筛HZSM-5进行改性,与自制的甲醇催化剂(MeLi)机械混合制得合成液化石油气(LPG)双功能催化剂。通过NH3-TPD对改性HZSM-5分子筛酸性表征,在固定床单管反应器上,研究MgO在催化剂中含量对一步法合成LPG的影响,并对催化剂进行寿命实验。结果表明,随着MgO在催化剂中含量的升高,HZSM-5的强酸强度随之降低;MgO在HZSM-5中质量分数在0.25%~1.00%时,催化剂的效果最佳。改性HZSM-5作为脱水催化剂,可提高目标产物的含量,同时大幅度提升催化剂的寿命及稳定性。
|
| 关 键 词： | HZSM-5分子筛 氧化镁 催化剂 液化石油气合成 |
| 收稿时间： | 2009-10-13 |
Effects of MgO modification to HZSM-5 Zeolite for LPG synthesis |
| |
| L Yong-xing,WU Chuang-zhi,WANG Tie-jun,MA Long-long,XIONG Zu-hong,ZHOU Yi.Effects of MgO modification to HZSM-5 Zeolite for LPG synthesis[J].Journal of Fuel Chemistry and Technology,2010,38(3):313-318. |
| |
| Authors: | L Yong-xing WU Chuang-zhi WANG Tie-jun MA Long-long XIONG Zu-hong ZHOU Yi |
| |
| Institution: | L(U) Yong-xing,WU Chuang-zhi,WANG Tie-jun,MA Long-long,XIONG Zu-hong,ZHOU Yi |
| |
| Abstract: | The modified HZSM-5 zeolite which contains MgO was prepared by impregnating Mg(NO3)2·6H2O ethanol solution with HZSM-5 and then mixed mechanically with methanol catalyst (MeLi) for LPG synthesis. The effects of MgO were investigated in a fixed bed reactor for LPG synthesis. The result showed that with increase of the MgO addition, the strong acid of HZSM-5 zeolite was decreased. The best mass content of MgO in the HZSM-5 was between 0.25%～1.00%. The hybrid catalyst, which consisted of modified HZSM-5 and MeLi, demonstrated a high activity, high selectivity to the target product C3 and C4 hydrocarbons and long catalyst lifetime. |
| |
| Keywords: | HZSM-5 zeolite MgO catalyst LPG synthesis |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《燃料化学学报》浏览原始摘要信息 |
| 点击此处可从《燃料化学学报》下载免费的PDF全文 |
|
