Ye Yu-Fang, Zhu Ying, Su Zhi, Ma Feng-Yun, Liang Ting
College of Chemistry and Chemical Engineering, Xinjiang Normal University, Urumqi 830054, China.
ACS Omega. 2021 Mar 19;6(12):8288-8296. doi: 10.1021/acsomega.0c06357. eCollection 2021 Mar 30.
Hydrodynamic cavitation (HC) of aromatic hydrocarbons present in creosote oil obtained from coal tar in the presence of 0.3% (w/w) Ni as an inducer increased its naphthalene and phenanthrene content by 7.3 and 2.6%, respectively. An optimal procedure was developed based on the use of an upstream pressure of 2.6 MPa, an immersing height (H) for the cavitator of 105 mm, 10% HO content, use of a NiSO solution at pH 4.0, and an operating temperature of 75 °C. Enrichment of the naphthalene and phenanthrene components is caused by hydroxyl and hydrogen radicals generated in the reaction inducing aromatic components to undergo a series of radical demethylation/methylation reactions to produce new product ratios. The observed increases in naphthalene and phenanthrene content using Ni as a radical inducer are in contrast with the previous results using Fe under similar conditions, which led to the enrichment of the acenaphthalene fraction of creosote oil.
在0.3%（w/w）镍作为诱导剂的存在下，对从煤焦油中获得的杂酚油中的芳烃进行水力空化（HC）处理，使其萘和菲的含量分别增加了7.3%和2.6%。基于使用2.6MPa的上游压力、空化器105mm的浸没高度（H）、10%的过氧化氢含量、pH为4.0的硫酸镍溶液以及75°C的操作温度，开发了一种优化程序。萘和菲组分的富集是由反应中产生的羟基和氢自由基引起的，这些自由基促使芳烃组分进行一系列自由基脱甲基/甲基化反应，从而产生新的产物比例。使用镍作为自由基诱导剂时观察到的萘和菲含量的增加与之前在类似条件下使用铁的结果形成对比，之前使用铁导致杂酚油中苊馏分的富集。
