标题： 通过Levi-Blow机制的碳氢化合物异构体分离的能量效率：与传统方法的对比 显示英文标题

标题： Energy Efficiency of Hydrocarbon Isomer Separation via Levi-Blow Mechanism: Benchmarking Against Conventional Methods

摘要： 在炼油厂中，分离具有相近物理化学性质的烃类异构体仍然是一个能量消耗大的挑战。 本研究对三种方法进行了比较分析：分馏法、Molex工艺和Levi-Blow（LB）技术。 利用实验验证的热力学数据和传热估算，我们量化了实现超高纯度分离所需的能耗和循环次数。 LB方法在单个循环中即可达到八九纯度，仅需39.4~kJ/mol，而分馏法和Molex需要多次迭代，且能耗高达五个数量级。 每种方法还与所关注混合物的热力学最小分离功进行了基准比较。 结果表明，LB技术的操作距离这一下限仅相差23倍，而Molex为$\sim 10^2$（Molex是UOP Inc.的商标和/或服务标志），分馏法为$\sim 10^5$，这证明了其在热力学和操作上的优越性。 显示英文摘要

摘要： Separation of hydrocarbon isomers with closely matched physicochemical properties remains an energetically demanding challenge in the petrochemical refineries. This study presents a comparative analysis of three methods: the fractional distillation, the Molex process, and the Levi-Blow (LB) technique. Using experimentally validated thermodynamic data and heat-transfer estimates, we quantify the energy expenditure and number of cycles required to achieve ultrahigh-purity separation. The LB method achieves eight-9s purity in a single cycle with just 39.4~kJ/mol, while fractional distillation and Molex require multiple iterations and up to five orders of magnitude more energy. Each method is also benchmarked against the thermodynamic minimum work of separation of the mixture of interest. It is found that the LB technique operates within a factor of 23 of this lower bound, compared to $\sim 10^2$ for Molex (Molex is a trademark and/or service mark of UOP Inc.) and $\sim 10^5$ for fractional distillation, demonstrating its thermodynamic and operational superiority.