化学反应工程与工艺
化學反應工程與工藝
화학반응공정여공예
CHEMICAL REACTION ENGINEERING AND TECHNOLOGY
2014年
5期
432-439
,共8页
方向晨%郭蓉%刘继华%宋永一
方嚮晨%郭蓉%劉繼華%宋永一
방향신%곽용%류계화%송영일
超低硫柴油%深度脱硫%催化剂级配技术%动力学模型
超低硫柴油%深度脫硫%催化劑級配技術%動力學模型
초저류시유%심도탈류%최화제급배기술%동역학모형
ultra-low sulfur diesel%deep hydrodesulfurization%catalyst stacking technology%kinetic model
为了解决柴油超深度加氢脱硫过程受热力学平衡限制问题,更好地发挥不同类型催化剂的优势,在中型实验装置上,采用固定压力等级和空速的实验方法,考察了加氢反应活性好的 W-Mo-Ni 型催化剂和烷基转移反应活性好的Mo-Co催化剂对原料的适应性以及不同级配方式的加氢脱硫、脱氮效果。系统总结了原料、反应条件等对催化剂类型及其级配方式的影响,并建立了能够比较全面反映原料性质、反应条件和催化反应路径等对柴油超深度加氢脱硫反应影响的综合性的动力学模型。动力学模型计算结果表明,采用W-Mo-Ni/Mo-Co级配催化剂体系能够合理利用加氢反应器内不同区域反应条件的差异,达到更好的反应效果,并得到了工业应用结果的支持。
為瞭解決柴油超深度加氫脫硫過程受熱力學平衡限製問題,更好地髮揮不同類型催化劑的優勢,在中型實驗裝置上,採用固定壓力等級和空速的實驗方法,攷察瞭加氫反應活性好的 W-Mo-Ni 型催化劑和烷基轉移反應活性好的Mo-Co催化劑對原料的適應性以及不同級配方式的加氫脫硫、脫氮效果。繫統總結瞭原料、反應條件等對催化劑類型及其級配方式的影響,併建立瞭能夠比較全麵反映原料性質、反應條件和催化反應路徑等對柴油超深度加氫脫硫反應影響的綜閤性的動力學模型。動力學模型計算結果錶明,採用W-Mo-Ni/Mo-Co級配催化劑體繫能夠閤理利用加氫反應器內不同區域反應條件的差異,達到更好的反應效果,併得到瞭工業應用結果的支持。
위료해결시유초심도가경탈류과정수열역학평형한제문제,경호지발휘불동류형최화제적우세,재중형실험장치상,채용고정압력등급화공속적실험방법,고찰료가경반응활성호적 W-Mo-Ni 형최화제화완기전이반응활성호적Mo-Co최화제대원료적괄응성이급불동급배방식적가경탈류、탈담효과。계통총결료원료、반응조건등대최화제류형급기급배방식적영향,병건립료능구비교전면반영원료성질、반응조건화최화반응로경등대시유초심도가경탈류반응영향적종합성적동역학모형。동역학모형계산결과표명,채용W-Mo-Ni/Mo-Co급배최화제체계능구합리이용가경반응기내불동구역반응조건적차이,체도경호적반응효과,병득도료공업응용결과적지지。
Diesel ultra-deep hydrodesulfurization (HDS) reaction is influenced by the thermodynamic equilibrium. Therefore, it is very important to exert different type catalyst’s performance. In the pilot unit, through systematic experiments, the reaction results of W-Mo-Ni type catalyst with great hydrogenation reactivity and Mo-Co type catalyst with good transalkylation activity and their different stacking systems are investigated on the adaptability to different feed stocks and HDS, HDN activity. The effects of feed stocks, reaction conditions, catalysts and their stacking methods to ultra-deep HDS of diesel have been analyzed and discussed. On the same time, a comprehensive kinetic model of ultra-deep HDS has been developed which can describe the effects of feedstock, reaction conditions and reaction pathways. The kinetic model calculation results showed that the W-Mo-Ni/Mo-Co catalyst stacking system can best utilizing the reaction condition differences in reactor different zones, so achieving better reaction results, and the commercial data best supports this stacking method.