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513-1脱氧催化剂技术说明书 511-1脱氧剂是一种高效脱氧剂，具有不氢化、无异构化反应的特性，经多次再生活化，脱氧能力无明显下降，适用于化工、电子、冶金等行业生产超纯气体使用，特别适用于氮气、惰性气体和二氧化碳的脱氧净化装置。513-1型脱氧剂的主要活性组份为氧化锰。 使用前活化：将脱氧剂装填于反应器中，用惰性气体将系统内空气排除干净。通入纯氮气或其他惰性气体，空速为150-300hr，同时加热反应器，使脱氧剂均衡升温至280-320摄氏度，恒温1小时。通入含10-20%氢气的氮氢混合气，空速为150-300hr。由于升温及氢气的加入，放空出口有水汽排出。活化反应过程是沿着气流方向层层推进[当活化反应过程中由于氢气量控制不好，引起催化剂 床层飞温（温度不能超过350摄氏度），应立即切断氢气，通入600h的冷氮气，待温度降至320摄氏度，在通入氮氢混合气],当活化层从一端移至另一端时，放空尾气也无水汽排出，说明活化已基本完成。关闭氮气，保留氢气，继续通气1小时。关闭氢气，用氮气将系统内氢气置换干净后，关闭加热电源和气源，活化完毕（活化时间通常需6-8小时），密闭备用。 脱氧净化：活化完毕后，随时可通入待净化气体，脱氧剂开始脱氧工作。 |
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chengcj.2008
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513-1 deoxidizing catalyst directions 511-1 deoxidizing agent is a kind of highly efficient product which has the good characteristics of no hydrogenation, no isomerization, and no evident decrease of deoxidizing ability after several times of regeneration, thus making it proper in the production of super pure gas in chemical engineering, electronics, metallurgy industries, especially for the production of nitrogen, inert gas, and carbon dioxide. The main active components of 511-1 deoxidizing agent is MnO2. Activation before use: The deoxidizing agent was charged into a reactor, and the air in the system was thoroughly removed by inert gas. Pure nitrogen or other inert gas was flowed with the air flow rate of 150-300hr, and the reactor was heated to make the temperature of deoxidizing agent gradually rise to 280-320 oC, then the temperature was kept for 1 hr. Mixed nitrogen/hydrogen gases (10-20% hydrogen) was charged at the rate of 150-300hr. Water gas emitted from vent outlet due to rise of temperature and the charge of hydrogen. The activating process was conducted gradually through gas flow orientation [when fluidized bed runaway (temperature should be no more than 350 oC) occured because of inappropriate hydrogen volume, the hydrogen flow must be shut off immediately and cold nitrogen was flowed at 600h rate till the temperature decreased to 320 oC, mixed nitrogen/hydrogen gases can be charged again]. When the activited layer moved from one side to the other, no water gas emitted in vent outlet, which suggested the accomplishment of activation operation. Stop nitrogen flow, keep hydrogen flow for another 1hr. Stop hydrogen flow, and remove thoroughly hydrogen gas in the system by nitrogen. Then, shut off electrical power and gases source to finish activating operations (activation time usually needs 6-8 hours), and the instrument was sealed for use. Deoxidizing cleaning: After activation, unclean gas can be flowed at any time for cleaning, and the deoxidizing agent starts to work. |
2楼2008-10-02 11:21:25