摘要：本实验选择了炼油厂催化裂化（FCC）装置副产的经过合成MTBE工艺过程后剩余的混合碳四为原料。首先进行载体的制备和筛选，由Al2O3、粘结剂、致孔剂等原料，分别在600℃和900℃的温度下进行焙烧4小时制得两种载体A,B，并用含有Pd的金属盐溶液进行浸渍。再把这两种催化剂在实验评价装置上进行评价，实验得出焙烧温度为600℃的载体A的异构化性能远远好于载体B的异构化性能。继而测定活性组分的含量对催化剂性能的影响，实验数据表明浸渍0.26（m/m）%的Pd所得的催化剂是混合碳四选择性加氢脱丁二烯及丁烯-1异构合适的催化剂。用上述载体A,活性组分为0.26（m/m)的催化剂进行工艺操作条件的研究，针对不同的温度，压力，空速和氢比分别进行了几组实验。工艺操作条件研究结果表明，得出该催化剂合适的工艺操作条件为：压力为1.5MPaG~2.0MPaG，温度为50℃~80℃，空速为5h-1~6h-1，氢比为3mol/mol。最后为了检验该催化剂的各种性能的稳定性进行了500小时稳定性实验。丁二烯的转化率、丁烯-1的异构化率和单烯烃的收率均达到指标要求，说明该催化剂的加氢活性、异构化活性及选择性均具有良好的稳定性。19885
关键词： 碳四；加氢催化；1-丁烯异构；工艺操作条件；稳定性实验
Mixed C4 selective hydrogenation of butadiene removal and 1-butylene isomerization catalysts
Abstract : This study selected the refinery catalytic cracking (FCC) apparatus by-product after synthesis of the MTBE process after the rest of the mixed carbon four .After calcining 4 hours , respectively to obtain two vectors A, B at a temperature of 600 ℃ 900 ℃, and impregnated with a solution containing Pd metal . The two catalysts in the experimental evaluation of the evaluation means to selectively draw the firing temperature of the carrier A 600 ℃ preferably 1-butylene for 2-butylene . Then start the measurement of the active ingredient content on catalyst performance carrier A, experimental data show that the catalyst impregnated 0.26 (m / m)% of Pd is obtained after ether cleavage selective hydrogenation of carbon four high purity de- butadiene and 1-butylene isomerization suitable catalysts.
Research conducted by the above process conditions the catalyst for the different temperature, pressure, space velocity and hydrogen ratio were carried out several experiments . Process operating conditions results show that the catalyst suitable process operating conditions are as follows: pressure 1.5MPaG ~ 2.0MPaG, the temperature is 50 ℃ ~ 80 ℃, space velocity5h-1~6h-1 h-1, hydrogen ratio 3mol/mol.
Finally, to test the stability of various properties of the catalyst stability experiments conducted for 500h . Concluded that the conversion of the butadiene , the rate of 1-butylene isomerism to 2-butylene, indicating the hydrogenation activity and selectivity of the catalysts have good stability.
Keywords: Carbon four;Catalytic hydrogenation ; 1- isomerization of Butene;
process operating conditions; stability test
目 录
1 绪论 1
1.1 研究的目的与意义 1
1.1.1 研究的目的 1
1.1.2 研究的意义 1
1.2 国内外的发展概括 1
1.2.1 国内外混合碳四烃的利用现状 2
1.2.2 对我国混合碳四烃利用的建议 2
1.3 我的研究方向、方法及内容 2
1.3.1 研究方向 2
1.3.2 研究方法 2
1.3.3 研究内容 3
1.4 工艺原理 4
1.5 化学反应方程式 4
1.5.1 主反应 4
1.5.2 副反应 5 混合碳四选择性加氢脱丁二烯及丁烯-1异构催化剂研究:http://www.youerw.com/huaxue/lunwen_11449.html