催化剂中毒
- Catalyst poisoning;catalyst damage
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CuO/Al2O3催化剂中毒与氧吸附
Poisoning and Oxygen Adsorption of CuO / Al_2O_3 Catalyst
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甲醇在铂电极表面的脱氢生成CO强烈吸附在铂电极表面,阻碍了甲醇在铂表面的化学吸附,导致催化剂中毒。
Methanol dissociates to CO and H on platinum electrode , on which CO is strongly adsorbed and accordingly becomes a detrimental intermediate .
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以甲烷化反应为模型研究了H2S对Ni表面的中毒效应,并以此对催化剂中毒区域感染模型(IZM)作了实验验证。
The poisoning of H 2S on Ni foil catalyst for the methanation reaction was investigated .
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AFC催化剂中毒原因及预防办法的研究现状
Research status of poisoning reason of AFC catalyst and preventing methods
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随着CO2清洗技术和催化剂中毒预防技术取得重大突破,碱性燃料电池完全有能力在市场中获得成功应用。
The AFC had the capability to succeed fully in the application of market with the major breakthrough of CO_2 scrubbing technology and catalyst poisoning preventing technology .
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对碱性燃料电池(AFC)催化剂中毒的各种原因进行了分析,同时从理论上提出了防止AFC催化剂中毒的办法。
The poisoning reason of AFC catalyst were analyzed and the preventing methods were suggested theoretically .
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本文介绍了SCR脱除氮氧化物的基本原理,并讨论了导致催化剂中毒的各种原因。
The paper presents the basic principle on the removal of nitrogen oxides upon SCR and discusses the various causes of toxic catalyzer .
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结果表明,与Pt/C催化剂中毒时性能相比,质子交换膜燃料电池的性能有了显著的提高,表明CeO2/ACNTs这种催化剂具有良好的抗CO中毒能力。
According to the results , the fuel cell performance has been promoted obviously in comparison with the Pt / C catalyst , which shows that CeO2 / ACNTs can improve the CO tolerance of PEMFC .
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运用XPS分析方法研究一系列复合氧化物催化剂中毒前后硫在其表面的各种形态及催化剂活性组分中毒前后的组成、价态、化学机理及其变化。
By using XPS , before and after the intoxication of mixed oxide catalysts , the various appearance and the composition . valence and chemical mechanism of the active component of catalysts were studied .
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H2S是一种有毒有害气体,不仅严重威胁人体健康,而且湿热条件下引起催化剂中毒,腐蚀设备,导致成产成本增加等一系列问题。
H2S is a toxic and harmful gas , it can bring not only serious threat to human health , cause catalyst poisoning , but also corrode equipment in hot and humid conditions , make cost increased , contribute to a series of problems .
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通常燃料选择天然气,本文对贫天然气/空气混合物在催化燃烧炉中Pt催化剂中毒特性和辐射效率进行了研究,分析了由于天然气中H2S的出现导致Pt催化剂的老化。
Very often , the fuel in such devices is natural gas . Poisoning effect of the Pt catalyst and radiation efficiency for lean natural gas-air mixtures were investigated in a catalytic combustion burner . The Pt catalyst ageing because of the presence of H2S from natural gas is analyzed .
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异丙基苯催化裂化动力学及硅铝催化剂中毒
Kinetics of catalytic cracking of cumene and poisoning of silica-alumina catalyst
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氨合成塔催化剂中毒原因分析及处理
Reasons for the poisoning of ammonia converter and its treatment
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电子能谱仪在甲醇催化剂中毒失活中的应用研究
Application Research of Electron Spectroscopy in Methanol Poisoning Catalyst Deactivation
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催化燃烧处理有机废气及催化剂中毒的防止
Treatment of Organic Waste Gas of Catalytic Combustion and Prevention of Catalyst Poisoning
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催化剂中毒区域感染模型的实验验证
Experimental Verification of the Infected Zone Model for the Chemical Poisoning of Catalyst
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转化催化剂中毒事故分析
Analysis of the poisoning of steam reforming catalyst
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对于催化剂中毒的机理也进行了初步的探讨。
The poisoning type and the preliminary approach to the mechanism of poisoning effects were also proposed .
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四乙基铅和扫气剂对非贵金属燃烧催化剂中毒影响的研究
Study of Poisoning Effect of Tetraethyl lead and Lead Scavengers on Monolithic Non - Noble Metal Catalysts
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结果表明:Pb2+会引起催化剂中毒;
The results show that Pb ~ ( 2 + ) can cause the catalyst to be poisoned ;
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在丙烯聚合过程中,为防止催化剂中毒,对原料气中水含量需严格控制。
Water content has to meet the strict requirement in propylene polymerization process in order to prevent catalyst poisoning .
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并首次对其反应机理进行系统探讨:对碱性、中性芳香化合物的催化氢化中的催化剂中毒也有新的认识和见解。
Some new issues were give to catalyst poisoning in catalytic hydrogenation of nitro-aromatics in alkaline and neutral solution .
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在热反应器中,它促进腐蚀,在催化反应器中,它能使催化剂中毒。
In the thermal reactor it promotes corrosion , and in the catalystic reactor it tends to poison the catalyst .
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用微反断流催化色谱研究催化剂中毒后乙醇脱水表观反应速率常数的变化
Research on the change of apparent rate constant after poisoning the catalyst for dehydration of ethanol by micro-stopped flow catalytic chromatography
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讨论了催化转化器中主要的物理和化学过程,包括传热传质、气流分布、化学动力学、储氧和催化剂中毒。
Main physical and chemical processes including heat and mass transfer , flow distribution , chemical kinetics , oxygen storage and catalyst deactivation are discussed .
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南充炼油化工总厂加工的中原原油和新疆原油胶质及重金属含量均较高,尤其是新疆原油中的金属钒含量高,致使重油催化裂化催化剂中毒严重。
Central Plains oil and Xinjiang oil processed by Nanchong Refining & Chemical Complex are high gum level and high heavy metal level crude oil .
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重点介绍了催化剂中毒失活的平行、连串、并列和独立失活机理,提出了催化剂中毒活性曲线与活性关联式。
The parallel , series , side by side and independent deactivation of catalysts poisoning and the relationships between poisoning curve and activity of catalysts are discussed .
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重油中镍、钒金属杂质含量较高,且绝大多数存在于减压渣油中,它们会使催化裂化催化剂中毒失活。
The contents of Ni and V existing in the vacuum residue are relatively high , and they can poison the catalysts to lose their activities in FCC .
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含硫化合物对石油加工及其产品应用的危害是多方面的,如腐蚀金属设备,造成催化剂中毒,影响产品质量等。
The harms of sulfides come from many aspects to petroleum refining and product application , e.g. eroding metallic equipment , making catalyst poisoning , affecting on products output .
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石油产品中痕量砷的存在可使某些贵金属催化剂中毒,为此研究出了一种简单、快速的测砷方法。
Trace amount of arsenic in petroleum products is poisonous to some catalysts containing noble metals . Therefore , a cheap and fast method for arsenic determination is searched .