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祝远姣; 陈小鹏; 王琳琳; 阳承利; 童张法
Source Publication化学研究与应用
Other AbstractThe reaction mechanism of catalytic hydrogenation of rosin was investigated in a high-pressure agitated autoclave(type FYX-2G),using gum rosin as raw material,200# as solvent,and Pd/C as catalyst.When the effects of internal and external diffusion were eliminated,the relationship between reactant concentrations and reaction time was traced on line at temperatures ranging from 130℃ to 160℃ and under pressures ranging from 3.0MPa to 7.0MPa,and the parameters were regressed by using EVIEWS.Based on the experimental results,a suitable reaction model was selected from Hougen-Warson 17 reaction mechanism models to show the reaction between molecules of abietic-type resin acids and atomic hydrogen adsorbed on the catalyst surface.The dissociative adsorption of hydrogen could be the controlling step,the reaction rate is proportional to the pressure of hydrogen and in inverse proportion to the square of concentration of product.The activation energy is 20.773 kJ/mol,and the reason of using solvent in catalytic hydrogenation of rosin was also explained according to the reaction mechanism.
Keyword松香 催化加氢 反应机理 氢化松香
Document Type期刊论文
Recommended Citation
GB/T 7714
祝远姣,陈小鹏,王琳琳,等. 以Pd/C为催化剂的松香加氢反应机理[J]. 化学研究与应用,2007(02):210-215.
APA 祝远姣,陈小鹏,王琳琳,阳承利,&童张法.(2007).以Pd/C为催化剂的松香加氢反应机理.化学研究与应用(02),210-215.
MLA 祝远姣,et al."以Pd/C为催化剂的松香加氢反应机理".化学研究与应用 .02(2007):210-215.
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