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Pyrolytic Gaseous Hydrocarbon Generation and the Kinetics of Carbon Isotope Fractionation in Representative Model Compounds With Different Chemical Structures

机译:不同化学结构的代表性模型化合物中碳同位素分馏的热解气态烃和动力学

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Abstract > Five model compounds with representative chemical structures were selected for use in simulation experiments of pyrolytic gas production. The gas production and isotopic fractionation characteristics were observed and analyzed. Then, the factors affecting carbon isotope fractionation during natural gas generation were discussed, and a fractionation model was established and calibrated. We concluded that the final hydrocarbon gas (C <sub>1–5</sub> ) yield of octadecane, octadecylamine, octadecanoic acid, decahydronaphthalene, and 9‐phenylanthracene decreased in turn with the effective hydrogen content. Compared with linear alkanes or alkyl compounds, cycloalkanes have higher thermal stability and generate gas later. The variation in the carbon isotopic composition of natural gas is primarily controlled by the following three factors: (a) the thermal evolution of organic matter results in a gradually heavier isotopic composition for the main gas production stage. (b) Gas inherits the isotopic composition of its parent material, and this effect is evident when the chemical structure and gas generation mechanism between parent materials are similar. (c) The structure of organic matter determines the reaction mechanism of gas generation, which has a significant influence on the range and trend of carbon isotope fractionation in the process of methane generation. An improved chemical kinetic model can accurately characterize carbon isotope fractionation during gas generation. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译:</span><Abstract Type =“Main”XML:Lang =“en”> <标题类型=“main”>抽象</ title> > 选择具有代表性化学结构的五种模型化合物用于热解气体生产的模拟实验。观察和分析气体生产和同位素分级特征。然后,讨论了影响天然气产生期间的碳同位素分馏的因素,建立并校准分馏模型。我们得出结论,最终的烃类气体(c <sub> 1-5 </ sub> )八烷烷,十八烷基胺,十八烷基甲酸,十五萘丙烷和9-苯基蒽的产率依次降低,具有有效的氢含量。与线性烷烃或烷基化合物相比,环烷烃具有较高的热稳定性并以后产生气体。天然气的碳同位素组合物的变化主要由以下三个因素控制:(a)有机物质的热演化导致主要气体生产阶段的逐渐重较重的同位素组合物。 (b)气体继承了其母体材料的同位素组合物,并且当母材料之间的化学结构和气体发生机制相似时,这种效果是显而易见的。 (c)有机化物的结构决定了气体产生的反应机理,这对甲烷生成过程中碳同位素分馏的范围和趋势产生了重大影响。改进的化学动力学模型可以在气体产生期间准确地表征碳同位素分馏。 </ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-23285/'>《Geochemistry, geophysics, geosystems》</a> <b style="margin: 0 2px;">|</b><span>2019年第4期</span><b style="margin: 0 2px;">|</b><span>共21页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Lu Shuangfang&option=202" target="_blank" rel="nofollow">Lu Shuangfang;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Li Jijun&option=202" target="_blank" rel="nofollow">Li Jijun;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Xue Haitao&option=202" target="_blank" rel="nofollow">Xue Haitao;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Chen Fangwen&option=202" target="_blank" rel="nofollow">Chen Fangwen;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Xu Qingxia&option=202" target="_blank" rel="nofollow">Xu Qingxia;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Wang Min&option=202" target="_blank" rel="nofollow">Wang Min;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Li Wenbiao&option=202" target="_blank" rel="nofollow">Li Wenbiao;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Pang Xiaoting&option=202" target="_blank" rel="nofollow">Pang Xiaoting;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Key Laboratory of Deep Oil and GasChina University of Petroleum (East China)Qingdao China;</p> <p>Key Laboratory of Deep Oil and GasChina University of Petroleum (East China)Qingdao China;</p> <p>Key Laboratory of Deep Oil and GasChina University of Petroleum (East China)Qingdao China;</p> <p>Key Laboratory of Deep Oil and GasChina University of Petroleum (East China)Qingdao China;</p> <p>Research Institute of Exploration and Development of Daqing Oilfield Company Ltd.Daqing China;</p> <p>Key Laboratory of Deep Oil and GasChina University of Petroleum (East China)Qingdao China;</p> <p>Key Laboratory of Deep Oil and GasChina University of Petroleum (East China)Qingdao China;</p> <p>Key Laboratory of Deep Oil and GasChina University of Petroleum (East China)Qingdao China;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/163.html" title="地球物理学">地球物理学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=gas‐generating functional group&option=203" rel="nofollow">gas‐generating functional group;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=pyrolysis&option=203" rel="nofollow">pyrolysis;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=carbon isotope fractionation&option=203" rel="nofollow">carbon isotope fractionation;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=kinetics&option=203" rel="nofollow">kinetics;</a> </p> <div class="translation"> 机译:气体产生官能团;热解;碳同位素分馏;动力学; 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pyrolysis experimentation and determining kinetic parameters and stoichiometric coefficients</a> <b>[P]</b> . <span> 外国专利: <!-- 法国专利: --> FR2906481A1 </span> <span> . 2008-04-04</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译:通过个性化化合物的化学类别,定义裂化反应方案,定义动力学方案,热解实验以及确定动力学参数和化学计量系数来进行烃类热裂解建模 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130431543063.html">Hydrocarbon thermal cracking modeling by individualizing chemical classes of compounds, defining cracking reaction scheme, defining kinetic scheme, pyrolysis experiment and determining kinetic parameters and stoichiometric coefficients</a> <b>[P]</b> . <span> 外国专利: <!-- 法国专利: --> FR2906482A1 </span> <span> . 2008-04-04</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: 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