CAJ | 학술논문

以PtM/ZSM-5为催化剂，在固定床反应器中考察了几种不同重芳烃原料的加氢裂解反应。结果表明：以非芳含量较高的裂解C9为原料，由于非芳烃加氢裂解反应放热剧烈，导致反应温升过高，甲烷产生量较大；以非芳含量较低的重整C9为原料，反应条件温和，温升较小，催化剂表现出良好的反应性能，可较大幅度地增产二甲苯，并在C9馏分中富集三甲苯组分，甲烷产生量较低；裂解C9和重整C9混合进料可以抑制过高的反应温升，能够较好地抑制甲烷生成。
이PtM/ZSM-5위최화제，재고정상반응기중고찰료궤충불동중방경원료적가경렬해반응。결과표명：이비방함량교고적렬해C9위원료，유우비방경가경렬해반응방열극렬，도치반응온승과고，갑완산생량교대；이비방함량교저적중정C9위원료，반응조건온화，온승교소，최화제표현출량호적반응성능，가교대폭도지증산이갑분，병재C9류분중부집삼갑분조분，갑완산생량교저；렬해C9화중정C9혼합진료가이억제과고적반응온승，능구교호지억제갑완생성。
Catalytic hydropyrolysis of several heavy aromatic hydrocarbon feedstocks was investigated over PtM/ZSM-5 catalyst in a fixed-bed reactor. When cracking C9 used as feedstock, the non-aromatics contents had significant influence on catalytic hydropyrolysis reaction behavior and product distribution. The results showed that the reaction using cracking C9 as feedstock had higher reaction temperature rise and more generation of methane, due to the strong exothermic hydrocracking of non-aromatics. While reformate C9 had lower non-aromatics content, the reaction was rather mild and temperature rise was smaller. The catalyst exhibited a good performance in the catalytic hydropyrolysis of reformate C9, which had a high yield of xylene and lower methane generation, while the remainder C9 fraction could enrich trimethylbenzene. Mixed feedstock of cracking C9 and reformate C9 could lower the reaction temperature rise and suppress methane generation.