工业催化
工業催化
공업최화
INDUSTRIAL CATALYSIS
2015年
5期
406-409
,共4页
石油化学工程%碳五烃%丙烯%乙烯%催化裂解
石油化學工程%碳五烴%丙烯%乙烯%催化裂解
석유화학공정%탄오경%병희%을희%최화렬해
petrochemical engineering%C5 hydrocarbon%propylene%ethylene%catalytic cracking
以ZSM-5分子筛为催化剂，碳五烃混合物为裂解原料，考察空速对碳五烃催化裂解制丙烯/乙烯反应性能的影响。结果表明，在580℃和实验空速范围，随着空速的增加，碳五烷烃及烯烃转化率整体呈下降趋势，但碳五烯烃转化率远高于碳五烷烃。乙烯及丙烯收率在空速3h-1时达到最大，分别为10.51%和13.02%。碳四烯烃收率随空速的升高而降低，但各丁烯异构体相对于总烯烃的质量分布接近热力学平衡态。
以ZSM-5分子篩為催化劑，碳五烴混閤物為裂解原料，攷察空速對碳五烴催化裂解製丙烯/乙烯反應性能的影響。結果錶明，在580℃和實驗空速範圍，隨著空速的增加，碳五烷烴及烯烴轉化率整體呈下降趨勢，但碳五烯烴轉化率遠高于碳五烷烴。乙烯及丙烯收率在空速3h-1時達到最大，分彆為10.51%和13.02%。碳四烯烴收率隨空速的升高而降低，但各丁烯異構體相對于總烯烴的質量分佈接近熱力學平衡態。
이ZSM-5분자사위최화제，탄오경혼합물위렬해원료，고찰공속대탄오경최화렬해제병희/을희반응성능적영향。결과표명，재580℃화실험공속범위，수착공속적증가，탄오완경급희경전화솔정체정하강추세，단탄오희경전화솔원고우탄오완경。을희급병희수솔재공속3h-1시체도최대，분별위10.51%화13.02%。탄사희경수솔수공속적승고이강저，단각정희이구체상대우총희경적질량분포접근열역학평형태。
Using ZSM-5 molecular sieve as the catalyst,the influence of space velocity on catalytic cracking performance for C5 hydrocarbon to propylene and ethylene was investigated. The results showed that under the condition of 580 ℃ and experimental space velocity,the conversion of C5 alkane and C5 olefins decreased with the increase of space velocity,and the conversion of C5 olefins was much higher than that of C5 alkane. Under space velocity 3. 0 h-1 ,the yield of propylene and ethylene reached maximum, 10. 51% and 13. 02%,respectively. The yield of C4 olefins isomer decreased with the increase of space velocity,but thermodynamics equilibrium data were in accord with experimental data from C4 olefins iso-mer mass fraction based on total olefins.
