A review on modern odorants for natural gas: Structural investigation, synthesis methods, and applications

Subject Areas :

Nahal  Majdodin ¹ (Islamic azad University, science and research branch, collage of convergent sciences and technologies, chemistry group)
Sahar  Baniyaghoob ² (Department of Chemistry, Faculty of Basic Science, Science and Research Branch, Islamic Azad University, Hesarak, Tehran, Iran)
کامبیز  تحویلداری ³ (استادیار شیمی کاربردی، دانشکده شیمی، واحد شمال تهران، دانشگاه آزاد اسلامی، تهران، ایران)
امیر  وحید ⁴ (استادیار شیمی تجزیه، گروه ارزیابی‌های تخصصی و استاندارد نفت خام، پژوهشکده پالایش، پژوهشگاه صنعت نفت، تهران، ایران)

Received: 2023-05-19 Accepted : 2024-03-02 Published : 2024-06-20

Keywords: Odorant, Odor, Natural Gas, Sulfur, Safety,

Abstract :

Improving safety and increasing efficiency of utilization of natural gas is very important issue due to its wide use as one of the main energy sources for industry and home consumers all around the world. On the other hand, utilization of this clean fossil energy is too risky without considering safety cautions regarding gas leakage, explosion, and flammability. Due to the above mentioned facts and to overcome the problems, it is vital to inject proper compounds to natural gas to make it easily detectable by any person. So far, various types of compounds as "odorant" have been formulated and produced to inject to natural gas. In case of gas leakage, these compounds at low concentration are easily detectable by any person, due to their specific and pungent stink odor. Odorants are classified into classical and modern categories. In this article, a comprehensive study on different aspects of modern natural gas odorants and their odorization process has been performed. In addition, with studying basic chemistry and history of these compounds, the most important properties of odorants have been presented in order to help to recognize the most proper odorant for a specific application and its synthesis methods.

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