Background

Volumetric heating techniques such as ohmic heating have emerged as alternatives to conventional processing methods for diverse applications in the food industry. One of the novel applications of ohmic heating is ohmic-assisted hydrodistillation (OAHD), which utilizes the volumetric heating benefits to overcome traditional distillation shortcomings. This technique proffers benefits such as saving time and energy and has gained increasing interest as a preferred approach for ethanol distillation and essential oil extraction from various plant materials.

Scope and approach

This paper reviews the principles and current applications of OAHD. The effects of OAHD on process time, energy consumption, and distillate quality are discussed. Considerations for industrial application of OAHD are highlighted and its salient drawbacks are also taken into account.

Key findings and conclusions

Advantages of OAHD over conventional distillation include high thermal efficiency, short processing time and reduced operational cost. Further research on safety and sustainability along with economic study are prerequisites for commercial application of this technology.

中文翻译：

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欧姆辅助加氢蒸馏技术：综述

背景

诸如欧姆加热之类的体积加热技术已经成为食品工业中各种应用的常规加工方法的替代品。欧姆加热的新颖应用之一是欧姆辅助加氢蒸馏（OAHD），它利用体积加热的优点来克服传统蒸馏的缺点。该技术具有节省时间和能源等优点，并且作为乙醇蒸馏和从各种植物原料中提取精油的首选方法，引起了越来越多的关注。

范围和方法

本文回顾了OAHD的原理和当前的应用。讨论了OAHD对工艺时间，能耗和馏出液质量的影响。突出了OAHD在工业应用中的考虑因素，并考虑了其明显的缺点。

主要发现和结论

与常规蒸馏相比，OAHD的优势包括高热效率，较短的处理时间和降低的运营成本。有关安全性和可持续性的进一步研究以及经济研究是该技术在商业上应用的先决条件。