石油炼制与化工 ›› 2016, Vol. 47 ›› Issue (12): 28-32.

• 催化剂 • 上一篇    下一篇

影响脱氯剂抗压强度的因素探讨

薛俊霞,朱建华   

  1. 中国石油大学(北京)化学工程学院
  • 收稿日期:2016-04-13 修回日期:2016-06-15 出版日期:2016-12-12 发布日期:2016-11-29
  • 通讯作者: 朱建华 E-mail:rdcas@cup.edu.cn
  • 基金资助:
     

INVESTIGATION OF INFLUENCE FACTORS ON CRUSH STRENGTH OF DECHLORINATION AGENT

    

  1.  
  • Received:2016-04-13 Revised:2016-06-15 Online:2016-12-12 Published:2016-11-29
  • Supported by:
     

摘要: 介绍了脱氯剂制备过程中,脱氯剂的成型条件对脱氯剂抗压强度的影响。实验考察了聚乙烯醇、高岭土、铝溶胶作脱氯剂黏结剂对脱氯剂抗压强度的影响,结果表明:铝溶胶用作脱氯剂的黏结剂且用量在50%(w)时,脱氯剂的抗压强度最大;实验考察了硝酸、盐酸、醋酸作脱氯剂胶溶剂对脱氯剂抗压强度的影响,结果表明无机酸对脱氯剂抗压强度的影响明显高于有机酸,无机酸中的硝酸对脱氯剂的胶溶性更好,其适宜用量为5%(w);脱氯剂的水粉比影响脱氯剂的抗压强度及成型过程,适宜的水粉比控制在0.2~0.4 mL/g;考察了田菁粉、柠檬酸、草酸作脱氯剂助挤剂对脱氯剂抗压强度的影响,结果表明田菁粉是生产高强度脱氯剂较为理想的助挤剂,适宜用量为2.5%(w);适当增加载体与脱氯剂活性组分的质量比可有效提高脱氯剂的抗压强度,脱氯剂活性组分与载体的质量比控制在1.11时即可获得抗压强度为150 N/cm的脱氯剂。

关键词: 脱氯剂, 成型条件, 抗压强度

Abstract: The crush strength of dechlorination agent was influenced by dosage and type of binder, peptizer, extrusion aid, H2O/powder ratio, and amount of active component during preparation. The influence of different binders (polyvinyl alcohol, kaolin, and alumina sol), peptizers (nitric acid, hydrochloric acid, and acetic acid), and the extrusion aids (sesbania powder, citric acid, and oxalic acid) was tested, respectively. The results indicate that alumina sol, nitric acid and sebania powder are the most effective materials in improving the strength of the agent, their dosages are 50%, 5%, and 2.5%,respectively. The optimum ratios of H2O/powder and active component/carrier are 0.2~0.4ml/g and 1.11, respectively. With above proportions, the prepared dechlorination agent has the best strength of 150 N/cm.

Key words: dechlorination agent, molding conditions, crush strength

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