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热激活氮/热生成反应：动力学研究。

Thermally Activated Nitrogen/Heat Generating Reaction: A Kinetic Study.

作者信息

Al-Taq Ali A, Aljawad Murtada Saleh, Alade Olalekan Saheed, Mahmoud Mohamed, Alrustum Abdullah

机构信息

Department of Petroleum Engineering, King Fahd University of Petroleum & Minerals, 31261 Dhahran, Saudi Arabia.

EXPECR ARC, Saudi Aramco, Dhahran 31311, Saudi Arabia.

出版信息

ACS Omega. 2023 Mar 6;8(11):10139-10147. doi: 10.1021/acsomega.2c07466. eCollection 2023 Mar 21.

DOI:10.1021/acsomega.2c07466
PMID:36969399
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10035020/
Abstract

Sodium nitrite and ammonium chloride are the most widely used thermochemicals in the oil and gas industry. The kinetics of this reaction when activated with acids or acid precursors were the subject of extensive research by several researchers. The activation of such a highly spontaneous/vigorous reaction by heat is considered a promising reaction control. In this work, a kinetic study was carried out for the reaction of sodium nitrite and ammonium chloride salt activated by heat at 1-5 M and temperatures of 50-90 °C. The study was carried out in both closed and open systems, with the monitoring of gas evolution and generated pressure. The study showed a relatively higher order for ammonium chloride than sodium nitrite. The excess amount of ammonium chloride, a weak acid, enhanced the reaction as it could be catalyzed by both heat and acid. The obtained kinetics of the nitrogen generating reaction is given as d/d = -7.66 × 10 . The reaction kinetics in this study differs from what is reported in the literature regarding the order of NHCl, which was reported to be higher than that of NaNO under examined conditions. This study has practical significance for controlling the reactivity of the NHCl/NaNO nitrogen/heat generating system and calculating/optimizing nitrogen generation for a specific field application.

摘要

亚硝酸钠和氯化铵是石油和天然气工业中使用最广泛的热化学物质。几位研究人员对用酸或酸前体激活时该反应的动力学进行了广泛研究。通过加热激活这种高度自发/剧烈的反应被认为是一种很有前景的反应控制方法。在这项工作中，对亚硝酸钠和氯化铵盐在1 - 5 M以及50 - 90°C温度下受热反应进行了动力学研究。该研究在封闭和开放系统中进行，监测气体逸出和产生的压力。研究表明氯化铵的反应级数相对高于亚硝酸钠。过量的氯化铵（一种弱酸）增强了反应，因为它可被热和酸催化。所获得的产氮反应动力学表示为d/d = -7.66×10 。本研究中的反应动力学与文献中关于NHCl反应级数的报道不同，文献报道在研究条件下NHCl的反应级数高于NaNO 。本研究对于控制NHCl/NaNO产氮/发热系统的反应活性以及为特定现场应用计算/优化产氮量具有实际意义。

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本文引用的文献

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A novel N generation system assisted by authigenic acid for formation energy enhancement in an oilfield.一种用于油田中提高地层能量的新型自生酸辅助N代体系。
RSC Adv. 2019 Dec 2;9(68):39914-39923. doi: 10.1039/c9ra07934c.
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ACS Omega. 2019 Dec 13;4(26):21985-21992. doi: 10.1021/acsomega.9b03044. eCollection 2019 Dec 24.