CAJ | 학술논문

在固定床加氢微反装置上,考察了邻甲酚对煤焦油组分喹啉加氢脱氮( HDN)反应、二苯并噻吩( DBT)加氢脱硫( HDS)反应以及1-甲基萘加氢饱和( HDA)反应的影响。结果表明,邻甲酚的加入对喹啉的HDN反应、DBT的HDS反应、1-甲基萘的HDA反应有着较强的抑制作用,且邻甲酚的含量越多,这种抑制作用越明显,这是由于邻甲酚与喹啉、DBT、1-甲基萘在活性位点上的竞争吸附造成的。邻甲酚的加入对产物的选择性影响较弱,反应前后产物的选择性变化很小。由于空间位阻效应,1-甲基萘的加氢优先发生在不带侧链的芳环上。
재고정상가경미반장치상,고찰료린갑분대매초유조분규람가경탈담( HDN)반응、이분병새분( DBT)가경탈류( HDS)반응이급1-갑기내가경포화( HDA)반응적영향。결과표명,린갑분적가입대규람적HDN반응、DBT적HDS반응、1-갑기내적HDA반응유착교강적억제작용,차린갑분적함량월다,저충억제작용월명현,저시유우린갑분여규람、DBT、1-갑기내재활성위점상적경쟁흡부조성적。린갑분적가입대산물적선택성영향교약,반응전후산물적선택성변화흔소。유우공간위조효응,1-갑기내적가경우선발생재불대측련적방배상。
The influence of o-cresol on HDN of quinoline, HDS of DBT and HDA of 1-methylnaphthalene were investigated over a commercial catalyst in a fixed bed micro-reactor. The results suggest that o-cresol could strongly inhibit the HDN reaction of quinoline, HDS of DBT and HDA of 1-methylnaphthalene. The inhibition effect increases with the increasing content of o-cresol, which is resulted from the competitive adsorption between o-cresol and quinoline, DBT, and 1-methylnaphthalene. The presence of o-cresol has little effect on product selectivity. The hydrogenation is favored for aromatic ring without side chain, which is accounted for the steric effect.