| REUSY-EX的酸性和催化性能的研究 |
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| 引用本文： | 鲍书林,傅军,须沁华,童广明,阮彩安. REUSY-EX的酸性和催化性能的研究[J]. 燃料化学学报, 1993, 0(2) |
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| 作者姓名： | 鲍书林 傅军 须沁华 童广明 阮彩安 |
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| 作者单位： | 南京大学化学系，南京大学化学系，南京大学化学系，抚顺石油化工研究院，抚顺石油化工研究院 南京 210008，南京 210008，南京 210008，抚顺 113001，抚顺 113001 |
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| 摘 要： | 用高真空重量吸附、~(29)SiMAS NMR、NH_3-TPD、P_y-IR和正庚烷裂解等方法研究稀盐酸萃取REUSY样品后,对该沸石的孔和骨架结构、酸性和催化裂化功能的影响。吸附及~(29)SiMASNMR的测定结果表明,稀盐酸可以萃取出一部分填充在沸石二次孔中的非骨架铝(EFAl)碎片。NH_3-TPD和P_y-IR的试验结果表明,稀盐酸萃取后,该沸石强、弱酸中心的强度和数目均有所增加。正康烷裂解反应的数据指出,REUSYEX的裂解活性和抗氮性能均较其母体REUSY为高。
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| 关 键 词： | REUSY盐酸萃取 酸性 催化裂化 |
STUDY ON THE ACIDIC AND CATALYTIC PROPERTIES OF REUSY-EX |
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| Bao Shulin Fu Jun Xu Qinhua. STUDY ON THE ACIDIC AND CATALYTIC PROPERTIES OF REUSY-EX[J]. Journal of Fuel Chemistry and Technology, 1993, 0(2) |
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| Authors: | Bao Shulin Fu Jun Xu Qinhua |
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| Affiliation: | Bao Shulin Fu Jun Xu Qinhua Department of Chemistry,Nanjing University Tong Guangming Ruan Caian Fushun Research Institute of Petroleum and Petrochemicals,SINOPEC Fushun |
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| Abstract: | The pore and framework structure, and the acidic and catalytic cracking properties of REUSY-EX have been studied by means of BET method, ~(29)Si MAS NMR, NH_3-TPD, P_y-IR and n-heptane cracking tests. The results of adsorption and ~(29)SiMASNMR showed that HCl leaching could extract extra-framework aluminium species (EFAL)in the secondary pores of REUSY and the chemical surroundings of Si (OAl) in REUSY-EX were more uniform. The data of NH_3-TPD and Py-IR indicated that EFAL species in the secondary pores had screening effect on the acid sites. Both the strength and amount of acid sitesincreased after HCl leaching, n- heptane cracking tests illustrated that the catalytic cracking activity and nitrogen tolerence of REUSY-EX were higher than those of REUSY. |
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| Keywords: | REUSY HC1 leaching acidic properties catalytic cracking |
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