CAJ | 학술논문

使用Ni-Mo催化剂,在固定床微型反应器上进行喹咻、吲哚和咔唑存在下的4,6-二甲基二苯并噻吩(4,6-DMDBT)加氢脱硫(HDS)反应.结果表明,含氮化合物对4,6-DMDBT HDS有强烈的抑制作用.这3种氮化物的抑制作用大小顺序是:喹啉、咔唑和吲哚.氮化物对于HDS 2条反应路径均有抑制作用,但是抑制的程度不同.喹啉对先加氢再脱硫(HYD)反应路径的影响比对直接脱硫(DDS)反应路径的强烈得多;吲哚存在下HYD反应为主要的HDS反应;咔唑对2条反应路径的抑制程度相似,使4,6-DMDBT HDS的HYD和DDS反应比例与不添加氮化物时相似.氮化物含量增加使4,6-DMDBT HDS中DDS反应比例增加.
사용Ni-Mo최화제,재고정상미형반응기상진행규휴、신타화잡서존재하적4,6-이갑기이분병새분(4,6-DMDBT)가경탈류(HDS)반응.결과표명,함담화합물대4,6-DMDBT HDS유강렬적억제작용.저3충담화물적억제작용대소순서시:규람、잡서화신타.담화물대우HDS 2조반응로경균유억제작용,단시억제적정도불동.규람대선가경재탈류(HYD)반응로경적영향비대직접탈류(DDS)반응로경적강렬득다;신타존재하HYD반응위주요적HDS반응;잡서대2조반응로경적억제정도상사,사4,6-DMDBT HDS적HYD화DDS반응비례여불첨가담화물시상사.담화물함량증가사4,6-DMDBT HDS중DDS반응비례증가.
Inhibition effects of quinoline, indole and carbazole on the hydrodesulfurization (HDS) of 4,6-dimethyldibenzothiophene (4,6-DMDBT) over Ni-Mo catalyst were experimentally studied in a fixed-bed high-pressure micro-reactor. The three nitrogen compounds possessed very strong inhibition effects in the 4,6-DMDBT HDS, which were in the order of quinoline, carbazole and indole. They inhibited both reaction routes of the 4,6-DMDBT HDS with the different degrees. Quinoline inhibited HYD reaction route more intensely than DDS route and the HDS of 4,6-DMDBT mainly occurred along the DDS route, while HYD route was the main reaction route in the presence of indole. Carbazole inhibited two routes similarly. Addition of nitrogen compounds could make the ratio of DDS route rise in 4,6-DMDBT HDS.