The present work is a focus on getting selectivity of the products using intense heat and employing borax vacant orbitals for catalysis. A DC-arc-type reactor was used for the pyrolysis of waste polyethylene. The third point of its novelty is utilization of the solar energy as arc through photovoltaics and indoor use of solar energy for high-temperature heating. The combined action of high temperature, faster heating, and vacant orbital catalysis is intended for the product enhancement, selectivity of the process, and efficient management of the waste plastics. The process involves photovoltaic transformation of sunlight into electrical energy followed by storage in lead acid battery and discharge of heat in the form of arc. A graphite rod was used for the arc in the reactor. The high temperature and faster heating pyrolyzed the waste polyethylene into oil, fuel gas, and char. The reactor's efficiency was found to depend upon the rod length and time. The product gases were analyzed by chemical tests while the oil was analyzed using GC–MS. The gaseous product was highly combustible. The oil density (0.7 g/cm³) was found in gasoline range. The chemical tests indicated that the gas contains alkanes, alkenes, alkynes, and hydrogen gas.

中文翻译：

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利用太阳能硼砂催化产物选择性高温热解废聚乙烯

目前的工作重点是利用强热并利用硼砂空轨道进行催化来获得产物的选择性。采用直流电弧反应器对废聚乙烯进行热解。其新颖点之三是利用太阳能作为电弧，通过光伏发电，在室内利用太阳能进行高温采暖。高温、快速加热和空轨道催化的综合作用旨在提高产品质量、工艺选择性和废塑料的有效管理。该过程涉及将太阳光光伏转化为电能，然后存储在铅酸电池中并以电弧形式释放热量。石墨棒用于反应器中的电弧。高温和更快的加热将废聚乙烯热解成油、燃气和木炭。发现反应器的效率取决于棒的长度和时间。产物气体通过化学测试进行分析，而油则使用 GC-MS 进行分析。气态产物高度易燃。发现油密度(0.7g/cm ^{3 )在汽油范围内。}化学测试表明，该气体含有烷烃、烯烃、炔烃和氢气。