CAJ | 학술논문

以3%Ni/SAPO-34为催化剂，研究了二苯甲烷、二苯乙烷、苄基苯基醚在氮气或甲烷气氛下的热解反应，反应温度为380～480,℃，初始压力为5～7,MPa，反应时间为1～2,h．结果表明，催化剂能选择性地促进模型化合物中 C(芳)—C(烷)及 CH2—CH2键的断裂，对脱氢反应有一定的抑制作用，并且能促进活性氢向裂解的自由基转移，使自由基加氢；甲烷气氛下模型化合物的热解效果要优于氮气气氛；温度是热解的主要影响因素；不同模型化合物热解稳定性顺序不同，二苯甲烷较难裂解，二苯乙烷次之，苄基苯基醚最易裂解．同时也探讨了十氢萘、四氢萘、萘和1-甲基萘对二苯乙烷热解的影响，发现加入供氢溶剂后转化率降低，溶剂对氢解裂化反应具有抑制作用，四氢萘的抑制作用较强，其他供氢溶剂抑制作用较弱．
이3%Ni/SAPO-34위최화제，연구료이분갑완、이분을완、변기분기미재담기혹갑완기분하적열해반응，반응온도위380～480,℃，초시압력위5～7,MPa，반응시간위1～2,h．결과표명，최화제능선택성지촉진모형화합물중 C(방)—C(완)급 CH2—CH2건적단렬，대탈경반응유일정적억제작용，병차능촉진활성경향렬해적자유기전이，사자유기가경；갑완기분하모형화합물적열해효과요우우담기기분；온도시열해적주요영향인소；불동모형화합물열해은정성순서불동，이분갑완교난렬해，이분을완차지，변기분기미최역렬해．동시야탐토료십경내、사경내、내화1-갑기내대이분을완열해적영향，발현가입공경용제후전화솔강저，용제대경해열화반응구유억제작용，사경내적억제작용교강，기타공경용제억제작용교약．
Pyrolysis of diphenylmethane(DPM),1,2-diphenylethane(DPE)and benzylphenylether (BPE) was studied in the presence of nitrogen or methane,with 3%Ni/SAPO-34 as catalyst,at various reaction tempera-ture(380—480,℃),pressure(5—7,MPa)and reaction time(1—2,h). The results show that the catalyst can accelerate the decomposition of aryl—alkyl and CH2—CH2 bonds,inhibit dehydrogenation,and promote the transfer of active hydrogen to the hydrocracking active sites of model compounds and than hydrogenate them. The pyrolysis under methane is superior to that of nitrogen,and temperature plays a key role in the pyrolysis. The stability of three model compounds is different,DPM is most difficult to decompose,followed by BPE,while DPE is easiest to decom-pose. The effect of decalin,tetralin,naphthalene and 1-methylnaphthalene on the decomposition of DPE was also studied. The conversion rate of DPE decreases when solvents are added,and hydrogen donor solvents may inhibit the hydrocracking of DPE. Tetralin exerts the strongest inhibiting effect,while the other solvents exert weak inhibiting effects.