CAJ | 학술논문

对研制的焦化粗苯预加氢催化剂HDA016和主加氢脱硫催化剂HDB017进行工艺条件试验，在预加氢温度180℃、主加氢温度270℃、液体流速0.15 L·h-1、氢油体积比600：1、预加氢段液体空速1.88 h-1、主加氢段液体空速0.75 h-1和反应压力2.5 MPa条件下，进行催化剂连续寿命考察。结果表明，产品中硫含量低于0.7 mg·L-1，氮含量约维持在1 mg·L-1。采用压汞法对催化剂的比表面积以及孔结构进行测试，结果表明，预加氢催化剂HDA016比表面积219.3 m2·g-1，平均孔径1.56 nm，最可几孔径1.71 nm，孔容0.19 mL·g-1；主加氢催化剂 HDB017比表面积196.6 m2·g-1，平均孔径1.58 nm，最可几孔径1.88 nm，孔容0.15 mL·g-1。XRD测试结果显示，活性金属组分负载在γ-Al2 O3上，达到了非常高的分散度。
대연제적초화조분예가경최화제HDA016화주가경탈류최화제HDB017진행공예조건시험，재예가경온도180℃、주가경온도270℃、액체류속0.15 L·h-1、경유체적비600：1、예가경단액체공속1.88 h-1、주가경단액체공속0.75 h-1화반응압력2.5 MPa조건하，진행최화제련속수명고찰。결과표명，산품중류함량저우0.7 mg·L-1，담함량약유지재1 mg·L-1。채용압홍법대최화제적비표면적이급공결구진행측시，결과표명，예가경최화제HDA016비표면적219.3 m2·g-1，평균공경1.56 nm，최가궤공경1.71 nm，공용0.19 mL·g-1；주가경최화제 HDB017비표면적196.6 m2·g-1，평균공경1.58 nm，최가궤공경1.88 nm，공용0.15 mL·g-1。XRD측시결과현시，활성금속조분부재재γ-Al2 O3상，체도료비상고적분산도。
The process condition experiments of the catalysts for coking crude benzol hydrogenation desul-furization were carried out. Under the condition of prehydrogenation temperature 180℃,main hydrogenation temperature 270 ℃,liquid flow rate 0. 15 L·h-1 ,volume ratio of hydrogen to oil 600:1,liquid airspeed of preliminary and main reactor 1. 88 h-1 and 0. 75 h-1 respectively,and reaction pressure 2. 5 MPa,the continuous life span experiments of HDA016 and HDB017 catalysts were investigated. The results indicated that the sulfur content and the nitrogen content in the product were less than 0. 7 mg·L-1 and 1 mg·L-1 , respectively. The specific surface area and pore structure of the catalysts were characterized by mercury injection method. The results showed that specific surface area of 219. 3 m2 ·g-1,average pore size of 1. 56 nm,most probable aperture 1. 71 nm and pore volume 0. 19 mL·g-1 of HDA016 prehydrogenation catalyst were attained;The specific surface area,average pore size,most probable aperture and pore vol-ume of HDB017 hydrogenation catalyst reached 196. 6 m2 ·g-1 ,1. 58 nm,1. 88 nm and 0. 15 mL·g-1 , respectively. The results of XRD characterization showed that the active metal component loaded onγ-Al2 O3 possessed a very high degree of dispersion.