石油炼制与化工 ›› 2026, Vol. 57 ›› Issue (11): 91-98.

• 催化剂 • 上一篇    下一篇

模板剂用量对片状ZSM-5合成及其催化裂解丁烯性能的影响

张臻浩1,梁晋嘉1,赵晨阳1,韩蕾2,范彬彬1,李文林1,于峰1   

  1. 1. 太原理工大学化学与化工学院
    2. 中石化石油化工科学研究院有限公司
  • 收稿日期:2026-05-07 修回日期:2026-07-13 出版日期:2026-11-12 发布日期:2026-10-19
  • 通讯作者: 张臻浩 E-mail:2627692608@qq.com
  • 基金资助:
    炼油工艺与催化剂国家工程研究中心课题;山西省科技成果转化引导专项;国家自然科学基金重点项目

EFFECTOFTEMPLATE CONTENT ON THE SYNTHESIS OFSHEET-LIKE ZSM-5 AND ITS CATALYTIC CRACKING PERFORMANCE OF 1-BUTENE

  • Received:2026-05-07 Revised:2026-07-13 Online:2026-11-12 Published:2026-10-19

摘要: 系统考察了模板剂四丙基氢氧化铵(TPAOH)用量对合成片状ZSM-5分子筛孔结构、酸性质及其催化裂解丁烯性能的影响。结果表明:在所采用的合成体系中,当TPAOH/Si摩尔比为0.5~2.0时,所制备的一系列HZ5-xT分子筛均为高结晶度的片状ZSM-5分子筛;随着模板剂TPAOH含量的增加,合成样品的晶体在a轴和c轴方向上的尺寸明显增大,介孔孔体积及外比表面积也相应提高,同时样品的硅铝比也有所上升。在1-丁烯催化裂解反应中,HZ5-xT样品的酸性质对产物分布的影响更为显著。产物中C1~C4烷烃及芳烃的含量随样品中强酸酸量的增加而升高,而丙烯及C5+非芳烃组分的含量则随强酸酸量的增加而降低。

关键词: 模板剂, 四丙基氢氧化铵, 片状ZSM-5, 1-丁烯, 裂解, 酸量, 晶体尺寸

Abstract: This study systematically investigated the effects of TPAOH content during the synthesis process on the pore properties, acidity, and catalytic butene cracking performance of the obtained sheet-like ZSM-5 zeolites. The results show that within the adopted synthesis system, when the TPAOH/Si molar ratio is in the range of 0.5—2.0, all the prepared HZ5-xT zeolites are sheet-like ZSM-5 with high crystallinity. As TPAOH content in the synthesis system increases, the crystal sizes of the synthesized sheet-like ZSM-5 samples along the a-axis and c-axis increase significantly, and the mesopore volume and external surface area are also enhanced, while the Si/Al ratio of the synthesized HZ5-xT samples increases. In the catalytic cracking reaction of 1-butene, the acidic properties of the HZ5-xT samples have a more significant effect on the product distribution. The contents of C1—C4 alkanes and aromatics in the products increase with increasing strong acid amount of the HZ5-xT samples, whereas the contents of propene and C5+ components decrease with increasing strong acid amount.

Key words: template, TPAOH, sheet-like ZSM-5, 1-butene, cracking, acidity, crystal dimension