研究报告

  • 杨帆,叶子玮,孙水裕,林伟雄,黄静菊,吴凌宇.Ca、Fe系添加剂对废线路板热解油脱溴改质效果的影响[J].环境科学学报,2018,38(6):2468-2474

  • Ca、Fe系添加剂对废线路板热解油脱溴改质效果的影响
  • Effect of Ca and Fe additives on debromination and lightweight of waste oil from waste circuit board
  • 基金项目:广东省科技计划项目(No.2014B020216009);广东省环保专项资金项目(废线路板与废旧锂电池高值化资源利用,2016);佛山市科技创新项目(No.2016AG100482);广东环境保护工程职业学院人才基金项目(No.K640416101709);广东省自然科学基金(No.2017A030313266);广东普通高校创新团队(No.2017GKCXTD004);佛山市自筹经费类科技计划项目(No.2017AB004132);广东省普通高校特色创新项目(No.2017GKTSCX041)
  • 作者
  • 单位
  • 杨帆
  • 1. 广东环境保护工程职业学院, 佛山 528216;2. 广东省固体废弃物资源化与重金属污染控制工程技术研究中心, 佛山 528216;3. 广东省环境保护矿冶行业重金属污染防治与职业教育重点实验室, 佛山 528216;4. 佛山市重金属污染防治与资源综合利用工程技术研究中心, 佛山 528216
  • 叶子玮
  • 广东工业大学环境科学与工程学院, 广州 510006
  • 孙水裕
  • 1. 广东环境保护工程职业学院, 佛山 528216;2. 广东工业大学环境科学与工程学院, 广州 510006;3. 广东省固体废弃物资源化与重金属污染控制工程技术研究中心, 佛山 528216;4. 广东省环境保护矿冶行业重金属污染防治与职业教育重点实验室, 佛山 528216;5. 佛山市重金属污染防治与资源综合利用工程技术研究中心, 佛山 528216
  • 林伟雄
  • 1. 广东环境保护工程职业学院, 佛山 528216;2. 广东省固体废弃物资源化与重金属污染控制工程技术研究中心, 佛山 528216;3. 广东省环境保护矿冶行业重金属污染防治与职业教育重点实验室, 佛山 528216;4. 佛山市重金属污染防治与资源综合利用工程技术研究中心, 佛山 528216
  • 黄静菊
  • 广东环境保护工程职业学院, 佛山 528216
  • 吴凌宇
  • 广东环境保护工程职业学院, 佛山 528216
  • 摘要:为了达到废印刷电路板(WPCB)热解油的脱溴和轻质化的目的,在废印刷电路板非金属粉末(WPCBNP)的热解中应用不同的添加剂(脱溴剂、脱溴剂+催化剂).首先,研究了WPCBNP的热解三相产物产率. 其次,测定了热解液体产物中有机溴和无机溴的含量. 最后,分析了热解油中碳原子的组成分布和组分含量.试验结果表明,使用Fe3O4+4A分子筛时,热解油回收率可达12.23%.热解液相产物中的无机溴含量从283.04 mg·g-1减少到10.19 mg·g-1(Fe3O4+Al2O3),去除率为90.47%,有机溴含量从151.13 mg·g-1减少到11.07 mg·g-1(Fe3O4+Al2O3),去除率分别为90.47%和92.68%.应用Fe3O4+Al2O3可将C6~C9组分(或汽油组分)含量从61.07%提高到76.75%,C10~C14组分(或柴油组分)含量从10.66%提高到13.95%,而≥C15(或重油组分)含量从28.27%降低至9.30%.通过分析热解油成分,可知油中主要含溴有机物是 2-bromo-Phenol和2,4-dibromo-Phenol.应用不同添加剂/组合添加剂,2-bromo-Phenol含量可降至1.22%,而2,4-dibromo-Phenol未被检出.结果表明,Fe3O4 + Al2O3在WPCBNP热解油的脱溴和轻质化方面效果最好,对WPCB资源化利用具有显著的效益.
  • Abstract:In order to achieve the debromination and lightweight of waste printed circuit board (WPCB) pyrolytic oil, different additives (debromination agent, debromination agent+catalyst) were applied in the pyrolysis of waste printed circuit board nonmetallic powders (WPCBNP). Firstly, the yield of pyrolytic three-phase product from WPCBNP were investigated. Secondly, the content of organic bromine and inorganic bromine among the pyrolytic liquid product were measured. Lastly, the composition and the number distribution of carbon atoms of pyrolysis oil were analyzed. The experimental results showed that the recovery rate of pyrolysis oil could reach 12.23%, when Fe3O4+4A was used. The removal rate of inorganic bromine in the pyrolytic liquid phase reduced from 283.04 mg·g-1 to 10.19 mg·g-1 (Fe3O4+Al2O3), and the content of organic bromine decreased from 151.13 mg·g-1 to 11.07 mg·g-1 (Fe3O4+Al2O3), reaching the removal rate of 90.47% and 92.68%, respectively. By Fe3O4+Al2O3, the content of C6~C9 (or diesel component) increased from 61.07% to 76.75%, and the content of C10~C14 (or diesel component) increased from 10.66% to 13.95%, while the content of ≥ C15 (or heavy oil components) content reduced from 28.27% to 9.30%. Through the analysis of pyrolysis oil, analysis indicated the main bromine organic compounds were 2-bromo-Phenol and 2,4-dibromo-Phenol. Using different additives, 2-bromo-Phenol content could be reduced to 1.22% and 2,4-dibromo-Phenol had not been detected. The results indicated that the Fe3O4+ Al2O3 do best in the debromination and lightweight of WPCBNP pyrolysis oil, which has significant benefits in resource recycling of WPCB.

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