论文标题
低密度聚乙烯的非热大气等离子体反应器用于氢生产
Nonthermal Atmospheric Plasma Reactors for Hydrogen Production from Low-Density Polyethylene
论文作者
论文摘要
氢在很大程度上是通过天然气改革或电化学水分生产的，而有机固体原料未充分利用。由可再生电力提供动力的血浆技术可导致塑料废物的可持续升级和绿色氢的生产。在这项工作中，基于转移的电弧（TransArc）和滑行电弧（Glidarc）放电的低温大气压力反应器设计，建造和表征可从低密度聚乙烯（LDPE）作为模型塑料废物产生氢。实验结果表明，氢产量和效率在两个反应器中随着电压水平的增加而单调提高，而对于transarc和Glidarc反应堆，最大氢产生为0.33和0.42 mmol/g LDPE。对于Transarc反应堆，较小的电极进料间距有利于更大的氢产生，而对于Glidarc反应堆，在中间流速时获得了更大的氢产生。尽管两个反应器之间的操作模式明显不同，但LDPE的氢产生还是可比的。
Hydrogen is largely produced via natural gas reforming or electrochemical water-splitting, leaving organic solid feedstocks under-utilized. Plasma technology powered by renewable electricity can lead to the sustainable upcycling of plastic waste and production of green hydrogen. In this work, low-temperature atmospheric pressure plasma reactors based on transferred arc (transarc) and gliding arc (glidarc) discharges are designed, built, and characterized to produce hydrogen from low-density polyethylene (LDPE) as a model plastic waste. Experimental results show that hydrogen production rate and efficiency increase monotonically with increasing voltage level in both reactors, with the maximum hydrogen production of 0.33 and 0.42 mmol/g LDPE for transarc and glidarc reactors, respectively. For the transarc reactor, smaller electrode-feedstock spacing favors greater hydrogen production, whereas, for the glidarc reactor, greater hydrogen production is obtained at intermediate flow rates. The hydrogen production from LDPE is comparable despite the markedly different modes of operation between the two reactors.
