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class="container"> <div class="line-big padding-big-top"> <div class="d-boxs d-pad"> <div class="show_content padding-large-bottom content_detail"> <div class="show_body detail"> <h1>催化燃燒催化劑參數分析</h1> <div class=" padding-bottom text-center qhd-title"> <span><strong>作者：</strong>admin</span> <span><strong>日期：</strong>2021-03-25</span> <span><strong>瀏覽：</strong><font class="countnum"><script src="/inc/AspCms_Visits.asp?id=1040"></script></font></span> <br><div class="bshare-custom"><a title="分享到微信" class="bshare-weixin"></a><a title="分享到QQ好友" class="bshare-qqim"></a><a title="分享到QQ空間" class="bshare-qzone"></a><a title="分享到新浪微博" class="bshare-sinaminiblog"></a><a title="分享到騰訊微博" class="bshare-qqmb"></a><a title="分享到搜狐微博" class="bshare-sohuminiblog"></a><a title="分享到百度空間" class="bshare-baiduhi"></a><a title="分享到豆瓣" class="bshare-douban"></a><a title="更多平臺" class="bshare-more bshare-more-icon more-style-addthis"></a><span class="BSHARE_COUNT bshare-share-count">0</span></div><script type="text/javascript" charset="utf-8" src="http://static.bshare.cn/b/buttonLite.js#style=-1&uuid=&pophcol=2&lang=zh"></script><script type="text/javascript" charset="utf-8" src="http://static.bshare.cn/b/bshareC0.js"></script> </div> <div><p>催化燃燒是典型的氣-固相催化反應，其實質是活性氧參與的深度氧化作用。在催化燃燒過程中，催化燃燒催化劑的作用是降低活化能，同時催化劑表面具有吸附作用，使反應物分子富集于表面提高了反應速率，加快了反應的進行。借助催化劑可使有機廢氣在較低的起燃溫度條件下，發生無焰燃燒，并氧化分解為CO2和H2O，同時放出大量熱能。下面跟邦億小編一起來了解一下催化燃燒催化劑參數分析。</p> <p>催化燃燒催化劑參數</p> <p>在空速較高，溫度較低的條件下，有機廢氣的燃燒反應轉化率接近100%，表明該催化劑的活性較高[9]。催化劑的活性分誘導活化、穩定、衰老失活3個階段，有一定的使用限期，工業上實用催化劑的壽命一般在2年以上。使用期的長短與最佳活性結構的穩定性有關，而穩定性取決于耐熱、抗毒的能力。對催化燃燒所用催化劑則要求具有較高的耐熱和抗毒的性能。有機廢氣的催化燃燒一般不會在很嚴格的操作條件下進行，這是由于廢氣的濃度、流量、成分等往往不穩定，因此要求催化劑具有較寬的操作條件適應性。催化燃燒工藝的操作空速較大，氣流對催化劑的沖擊力較強，同時由于床層溫度會升降，造成熱脹冷縮，易使催化劑載體破裂，因而催化劑要具有較大的機械強度和良好的抗熱脹冷縮性能。 </p> <p>鉑、鈀、釕等貴金屬對烴類及其衍生物的氧化都具有很高的催化活性，且使用壽命長，適用范圍廣，易于回收，因而是最常用的廢氣燃燒催化劑。如我國最早采用的Pt-Al2O3催化劑就屬于此類催化劑。但由于其資源稀少，價格昂貴，耐中毒性差。</p> <p>vocs催化燃燒催化劑的作用，通常VOCs的自燃燒溫度較高，通過催化劑的活化，可降低VOCs燃燒的活化能，從而降低起燃溫度，減少能耗，節約成本。</p> <p>另外：一般（無催化劑存在）的燃燒溫度都會在600℃以上，這樣的燃燒會產生氮氧化物，就是常說的NOx,這也是要嚴格控制的污染物。催化燃燒是沒有明火的燃燒，一般低于350℃，不會有NOx生成，因此更為安全和環保。</p> <p>催化燃燒的特點</p> <p>起燃溫度低,節省能源</p> <p>有機廢氣催化燃燒與直接燃燒相比，具有起燃溫度低、能耗低的顯著特點。在某些情況下，催化燃燒達到起燃溫度后便無需外界供熱。</p> <p>適用范圍廣</p> <p>催化燃燒幾乎可以處理所有的烴類有機廢氣及惡臭氣體。對于有機化工、涂料、絕緣材料等行業排放的低濃度、多成分、無回收價值的廢氣，采用吸附-催化燃燒法的處理效果更好。</p> <p>處理效率高，無二次污染</p> <p>用催化燃燒法處理有機廢氣的凈化率一般都在95%以上，最終產物為無害的CO2和H2O（雜原子有機化合物還有其他燃燒產物），且由于燃燒溫度低，能大量減少NOX的生成，因此不會造成二次污染。</p> <script src="/inc/AspCms_VisitsAdd.asp?id=1040"></script></div> </div> <ul class="pager padding-big-top padding-big-bottom"> <li>上一篇：<a href='/content/?1039.html'>催化燃燒蓄熱式熱氧化器工藝與技術優點</a> </li> <li>下一篇：<a href='/content/?1041.html'>廢氣處理燃燒燃燒,催化燃燒設備原理</a> </li> </ul> </div> </div> </div> </div> </div>   <script type="text/javascript" src="/inc/AspCms_Statistics.asp"></script> <footer> <div class="layout"> <div class="container"> <div class="line foot-top hidden-l text-center not-animated" data-animate="fadeInUp" data-delay="200"> <div class="xl12 xs6 xm3 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