富氧条件下对二甲苯氧化反应器的氧浓度分布  被引量：3

ofile of Oxygen Concentration in p -Xylene Oxidation Reactor under Oxygen-Enriched Process Conditions</em> <p class='article-op'> <span id="bdshare" class="bdshare_t bds_tools get-codes-bdshare baidufx"><span><span class="bds_more" style="display: block; width: 62px; height: 29px; background: url(/images/share.gif) no-repeat!important; padding: 0;"></span></span></span> </p> <p class="article-source"> <a href ='/article/read.aspx?id=10346890' class='btnTitle btnIsView' target='_blank'><img alt='在线阅读' src='/images/btn-read.png'/></a><a class='btnTitle btnIsView' href="javascript:showdown('12aE013l9ZbqZZra2Y+PU8ra3tqXMSUiyVH8NFDqdDM=')"><img alt="下载全文" src="/images/btn-down.png" /></a> <input id="hiddowninfo" type="hidden" value="12aE013l9ZbqZZra2Y+PU8ra3tqXMSUiyVH8NFDqdDM="/> </p> <div class="collect" style="display: none"> <h5>我的收藏</h5> <div class="cnt"> <p> 名 称：<input type="text" name="collTitle" id="collSumTitle" /> </p> <p> 注 释：<input type="text" name="collRemark" id="collSumRemark" /> </p> <p style="text-align: center;"> <a href="javascript:void(0)" onclick="g_collectSumOk();"> <img width="65" height="17" src="/images_new/collect_ok.png" alt="完成" /></a> <a href="javascript:void(0)" onclick="g_collectSumCancel();"> <img width="65" height="17" src="/images_new/collect_no.png" alt="取消" /></a> </p> </div> </div> </div> <form name="wxTransfer" method="post"> <input type="hidden" name="lid" value="" /> <input type="hidden" name="sip" value="" /> <input type="hidden" name="date" value="" /> <input type="hidden" name="co" value="" /> <input type="hidden" name="Title_C" value="" /> <input type="hidden" name="Writers" value="" /> <input type="hidden" name="Name_C" value="" /> <input type="hidden" name="Num" value="" /> <input type="hidden" name="Years" value="" /> <input type="hidden" name="Volumn" value="" /> <input type="hidden" name="GCH" value="" /> <input type="hidden" name="Vol" value="" /> <input type="hidden" name="BookID" value="" /> <input type="hidden" name="SubjectNum" value="" /> <input type="hidden" name="SpecialNum" value="" /> <input type="hidden" name="mirrorName" value="" /> <input type="hidden" name="UserID" value="" /> <input type="hidden" name="UserName" value="" /> <input type="hidden" name="sourceID" value="" /> </form> <script type="text/javascript" src="/scripts/transfer.min.js"></script> <div class="article-detail"> <p class='author'><strong>作　　者：</strong><a href='/writer/article.aspx?id=100000012298214' target='_blank' ><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=A%3d%5b%e8%b0%a2%e5%88%9a%5d' title='谢刚[1]'>谢刚[1]</a> <a href='/writer/article.aspx?id=100000011108847' target='_blank' ><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=A%3d%5b%e6%9d%8e%e5%b8%8c%5d' title='李希[1]'>李希[1]</a> <em> </em></p><p class='organ'><strong>机构地区：</strong><a href='/organ/article.aspx?id=18491&subid=&showname=&searchtype=' target='_blank'><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=S%3d%e6%b5%99%e6%b1%9f%e5%a4%a7%e5%ad%a6+%e5%8c%96%e5%ad%a6%e5%b7%a5%e7%a8%8b%e4%b8%8e%e7%94%9f%e7%89%a9%e5%b7%a5%e7%a8%8b%e5%ad%a6%e7%b3%bb' title='[1]浙江大学 化学工程与生物工程学系,浙江杭州310027'>[1]浙江大学 化学工程与生物工程学系,浙江杭州310027</a> <em> </em></p><p class='from'><strong>出　　处：</strong><a href='/journal/summary.aspx?gch=92242X' target='_blank'><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=J%3d%5b%e7%9f%b3%e6%b2%b9%e5%8c%96%e5%b7%a5%5d' title='石油化工'>《石油化工》</a>2004年第7期627-631,共5页<em>Petrochemical Technology</em></p><p class='fund'><strong>基　　金：</strong>国家自然科学基金项目(20076039)中国石油化工股份公司资助项目(X500029)。</p><p class='abstrack'><strong>摘　　要：</strong>采用轴向分散模型模拟计算了工业对二甲苯氧化反应器内的气液相氧浓度分布,考察了富氧进气(进气中氧的摩尔分数为21％-27％)对于该分布的影响。结果表明,反应器内气相氧的浓度分布存在一定的梯度,其值沿塔高单调递减;空气进气时,气相氧摩尔分数最大值为最小值的1.64倍;若保持尾气氧含量不变,则采用富氧进气后,气、液相氧含量有所降低。气相氧含量的降低说明操作安全性不受影响,而液相氧含量的降低则导致反应结果恶化。<em><abstract>mathematical model accounting for gas-liquid exothermic reaction and axial dispersion in both gas and liquid phases was employed to study the effect of feed oxygen concent ranging from 21% to 27% in an industrial bubble column reactor. Computational results showed that there was remarkable oxygen concent gradients in the gas phase in the reactor: the oxygen mole fraction in the gas phase decreased along the column, and the maxium at the bottom was 1.64 times of the minium at the top. In the oxygen-enriched process whose feed oxygen concent was higher than the value in air,i.e.21% ,the oxygen pressure in the gas phase and balance oxygen pressure in the liquid phase all decreased. The former meant that the safety of operation was unaffected and the latter meant that decrease in dissolved oxygen concent in the liquid phase led to poor reaction result.</em></p><p class='subject'><strong>关 键 词：</strong><a href='/zk/search.aspx?key=K%3d%5b%e5%af%8c%e6%b0%a7%e5%b7%a5%e8%89%ba%5d' title='富氧工艺'>富氧工艺</a> <a href='/subject/article.aspx?id=6622330' target='_blank'><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=K%3d%5b%e5%8f%8d%e5%ba%94%e5%99%a8%e6%a8%a1%e6%8b%9f%5d' title='反应器模拟'>反应器模拟</a> <a href='/subject/article.aspx?id=469522' target='_blank'><b class='type_ico_id'></b></a><a href='/zk/search.aspx?key=K%3d%5b%e5%af%b9%e4%ba%8c%e7%94%b2%e8%8b%af%5d' title='对二甲苯'>对二甲苯</a> <a href='/zk/search.aspx?key=K%3d%5b%e6%b0%a7%e5%8c%96%5d' title='氧化'>氧化</a> <a href='/zk/search.aspx?key=K%3d%5b%e6%b0%a7%e6%b5%93%e5%ba%a6%e5%88%86%e5%b8%83%5d' title='氧浓度分布'>氧浓度分布</a> </p><p class='class'><strong>分 类 号：</strong><a href='/zk/search.aspx?key=C%3dTQ052.5' title='TQ052.5'>TQ052.5</a>[<a href = '/domain/article.aspx?id=12' >化学工程</a>] </p> </div> <div id="content_wzxg" name="wzxg" class="article-graph"> <object width="695" height="250" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" id="FlashID"> <param value="../flash/relation.swf" name="movie"> <param value="high" name="quality"> <param value="opaque" name="wmode"> <param value="6.0.65.0" name="swfversion"> <param value="dataUrl=/ajax/articlerelativegraph.ashx?id=10346890" name="flashVars"> <embed width="695" height="250" src="../flash/relation.swf" type="application/x-shockwave-flash" quality="high" wmode="opaque" flashvars="dataUrl=/ajax/articlerelativegraph.ashx?id=10346890"> </embed> </object> </div> <div class="article-relate-list"> <div class="relate-list"> <p id="ckwx_br"> </p> <h2 name="ckwx" id="ckwx">参考文献：</h2> <div id="listckwx"> <p class='submit'> <img src='/images/loading.gif' width='16' height='16' /> 正在载入数据... </p> </div> </div> <div class="relate-list"> <p id="2jckwx_br"> </p> <h2 name="2jckwx" id="2jckwx">二级参考文献：</h2> <div id="list2jckwx"> <p class='submit'> <img src='/images/loading.gif' width='16' height='16' /> 正在载入数据... </p> </div> </div> <div class="relate-list"> <p id="ohwx_br"> </p> <h2 name="ohwx" id="ohwx">耦合文献：</h2> <div id="listohwx"> <p class='submit'> <img src='/images/loading.gif' width='16' height='16' /> 正在载入数据... </p> </div> </div> <div class="relate-list"> <p id="yzwx_br"> </p> <h2 name="yzwx" id="yzwx">引证文献：</h2> <div id="listyzwx"> <p class='submit'> <img src='/images/loading.gif' width='16' height='16' /> 正在载入数据... </p> </div> </div> <div class="relate-list"> <p id="2jyzwx_br"> </p> <h2 name="2jyzwx" id="2jyzwx">二级引证文献：</h2> <div id="list2jyzwx"> <p class='submit'> <img src='/images/loading.gif' width='16' height='16' /> 正在载入数据... </p> </div> </div> <div class="relate-list"> <p id="tbywx_br"> </p> <h2 name="tbywx" id="tbywx">同被引文献：</h2> <div id="listtbywx"> <p class='submit'> <img src='/images/loading.gif' width='16' height='16' /> 正在载入数据... </p> </div> </div> <div class="relate-list"> <p id="xgqklw_br"> </p> <h2 name="xgqklw" id="xgqklw">相关期刊文献：</h2> <div id="listxgqklw"> <p class='submit'> <img src='/images/loading.gif' width='16' height='16' /> 正在载入数据... </p> </div> </div> </div> </div> <div class="article-about"> <div class="about-box"> <h5 class="name">相关的主题<tt><a class="hide" href="#"></a></tt></h5> <div class="about-list"> </div> </div> <div class="about-box"> <h5 class="name">相关的作者对象<tt><a class="" href="#"></a></tt></h5> <div class="about-list" style="display: none;"> </div> </div> <div class="about-box"> <h5 class="name">相关的机构对象<tt><a class="" href="#"></a></tt></h5> <div class="about-list" style="display: none;"> </div> </div> </div> </div> </div> <script type="text/javascript" src="/scripts/articlerelation.min.js"></script> <script type="text/javascript" src="/scripts/articlerightrelation.min.js"></script> <script type="text/javascript" src="/scripts/articledown.min.js"></script> <div class="layer-box download" id="downloadlayer" style="display: none"> <div class="close"> <a onclick="closedown()" href="javascript:void(0)"> <img src="/images/layer-close.png" width="21" height="21" alt="" /> </a> </div> <h5 class="layer-title">下载全文</h5> <div id="downloadinfo"></div> </div> <div class="layer-box download" id="downloadlayer2" style="display:none;min-height:100px;width:500px;"> <p> <img src="/images/loading2.gif" width="64" height="64"> <span style="font-size:20px;vertical-align:middle;padding-bottom:50px;">正在链接到云南高校图书馆文献保障联盟下载...</span> </p> </div> <script id="bdshare_js" data="type=tools&uid=0" type="text/javascript"></script> <script type="text/javascript"> $(function () { var rd = GetQueryString("rd"); 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