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Beneficial effect of adding γ‐AlOOH to the γ‐Al2O3 washcoat of a PdO catalyst for methane oxidation

机译:将γ-AlOOH加入甲烷氧化PDO催化剂γ-Al2O3修涂层的有益效果

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Abstract > The beneficial effect of adding γ‐AlOOH to the γ‐Al <sub>2</sub> O <sub>3</sub> washcoat of a ceramic cordierite (2MgO · 2Al <sub>2</sub> O <sub>3</sub> · 5SiO <sub>2</sub> ) monolith, used to support a PdO catalyst, is reported for methane oxidation in the presence of water at low temperature (500°C). The mini‐monolith (400 cells per square inch (CPI), 1?cm diameter?× 2.54?cm length; ~52 cells) was washcoated using a suspension of γ‐Al <sub>2</sub> O <sub>3</sub> plus boehmite (γ‐AlOOH), followed by calcination and then deposition of Pd by wet impregnation. An optimum solid content of 25?wt% in the washcoat suspension was used to obtain a ~25?wt% washcoat on the monolith. The presence of γ‐AlOOH enhanced the thermal and mechanical stability of the washcoat, provided that the γ‐AlOOH content was 8 wt%. Temperature‐programmed methane oxidation (TPO) showed that the addition of γ‐AlOOH to the γ‐Al <sub>2</sub> O <sub>3</sub> washcoat decreased the catalyst activity. However, when H <sub>2</sub> O (2 vol% and 5 vol%) was present in the feed gas, the γ‐AlOOH improved the catalyst activity and stability. A γ‐AlOOH content of ~5 wt% in the washcoat was determined to provide the highest catalyst activity and stability for CH <sub>4</sub> oxidation in the presence of water. </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> > 将γ-AlOOH添加到γ-al的有益效果 <sub> 2 </ sub> O. <sub> 3 </ sub> 陶瓷堇青石的洗涤涂层(2MGO·2AL <sub> 2 </ sub> O. <sub> 3 </ sub> ·5SIO. <sub> 2 </ sub> )用于支持PDO催化剂的整料,以低温(<500℃)在水存在下甲烷氧化。迷你整料(每平方英寸400个细胞(CPI),直径为1?cm,×2.54Ω长度;〜52个细胞)使用γ-A1的悬浮液进行洗涤涂层 <sub> 2 </ sub> O. <sub> 3 </ sub> 加上勃姆石(γ-ALOOH),然后煅烧,然后通过湿浸渍沉积PD。使用过涂层悬浮液中25μlwt%的最佳固体含量在整料上获得〜25℃的洗涤涂层。提供γ-alooh的存在增强了洗涤涂层的热和机械稳定性,条件是γ-alooh含量为<8wt%。温度编程的甲烷氧化(TPO)显示,向γ-A1添加γ-AlOOH <sub> 2 </ sub> O. <sub> 3 </ sub> 洗涤涂层降低了催化剂活性。但是,当h <sub> 2 </ sub> o(2体积%和5体积%)存在于进料气中,γ-alooh改善了催化剂活性和稳定性。确定洗涤涂层〜5wt%的γ-γ-γ-含量为〜5wt%以提供最高的催化剂活性和CH的稳定性 <sub> 4 </ sub> 在水存在下氧化。 </ 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-30631/'>《The Canadian Journal of Chemical Engineering》</a> <b style="margin: 0 2px;">|</b><span>2020年第1期</span><b style="margin: 0 2px;">|</b><span>共13页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> </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"> </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/238.html" title="化学工业">化学工业;</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=emissions&option=203" rel="nofollow">emissions;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=methane oxidation&option=203" rel="nofollow">methane oxidation;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=monolith reactor&option=203" rel="nofollow">monolith reactor;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=natural gas vehicle&option=203" rel="nofollow">natural gas vehicle;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=washcoat&option=203" rel="nofollow">washcoat;</a> </p> <div class="translation"> 机译:排放;甲烷氧化;单极反应器;天然气车辆;洗涤涂层; 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. 黄传敬</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=王冬杰&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,王冬杰</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=齐共新&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,齐共新</a> <span> <a href="/journal-cn-7881/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 石油化工 </a> </span> <span> . 2000</span><span>,第005期</span> </span> </div> </li> <li> <div> <b>6. </b><a class="enjiyixqcontent" href="/academic-conference-cn_meeting-9351_thesis/020222320755.html">浸渍法和无火焰自蔓延燃烧合法制备不同负载量的Co3O4/Al2O3催化剂对甲烷的催化氧化</a> <b>[C]</b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=李冬芳&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 李冬芳</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=李俊华&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">,李俊华</a> <span> <a href="/conference-cn-9351/" target="_blank" rel="nofollow" class="tuijian_authcolor"> . 第六届全国环境化学学术大会 </a> <span> <span> . 2011</span> </span> </div> </li> <li> <div> <b>7. </b><a class="enjiyixqcontent" href="/academic-degree-domestic_mphd_thesis/020314947755.html">PdO/γ-Al2O3催化剂在甲烷催化燃烧中抗硫中毒性能的研究</a> <b>[A] </b> <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=谢平&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor"> . 谢平</a> <span> . 2012</span> </span> </div> </li> </ul> <ul style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/06120111434316.html">负载型PdO/Al2O3/SBA-15双功能催化剂及其制备方法和应用</a> <b>[P]</b> . <span> 中国专利: CN108940352A </span> <span> . 2018-12-07</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06120113801204.html">甲烷氧化偶联反应用催化剂的短周期制备方法及甲烷氧化偶联反应用催化剂和其应用</a> <b>[P]</b> . <span> 中国专利: CN113797951A </span> <span> . 2021-12-17</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130447970198.html">Palladium catalyst washcoat supports for improved methane oxidation in natural gas automotive emission catalysts</a> <b>[P]</b> . <span> 外国专利: <!-- 美国专利: --> US6165935A </span> <span> . 2000-12-26</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:钯催化剂修补基面涂层载体可改善天然气汽车排放催化剂中的甲烷氧化 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130453380005.html">Palladium catalyst washcoat supports for improved methane oxidation in natural gas automotive emission catalysts</a> <b>[P]</b> . <span> 外国专利: <!-- 美国专利: --> US5741467A </span> <span> . 1998-04-21</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:钯催化剂修补基面涂层载体可改善天然气汽车排放催化剂中的甲烷氧化 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130453933435.html">PALLADIUM CATALYST WASHCOAT SUPPORTS FOR IMPROVED METHANE OXIDATION IN NATURAL GAS AUTOMOTIVE EMISSION CATALYSTS</a> <b>[P]</b> . <span> 外国专利: <!-- 欧洲知识产权局专利: --> EP0830199A1 </span> <span> . 1998-03-25</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:钯催化剂清洗剂可改善天然气汽车排放催化剂中的甲烷氧化 </span> </p> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: auto;display:none"> <h3 class="all_title" id="enpatent55">相关主题</h3> <ul id="subject"> </ul> </div> </div> </div> </div> <div class="right rightcon"> <div class="details_img cardcommon clearfix" style="margin-bottom: 10px;display:none;" > </div> </div> </div> <div id="thesis_get_original1" class="downloadBth" style="bottom: 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