天然气化工
天然氣化工
천연기화공
NATURAL GAS CHEMICAL INDUSTRY
2014年
6期
25-28
,共4页
Nb/USY%催化剂%噻吩%汽油%氧化脱硫%双氧水
Nb/USY%催化劑%噻吩%汽油%氧化脫硫%雙氧水
Nb/USY%최화제%새분%기유%양화탈류%쌍양수
Nb/USY%catalyst%thiophene%gasoline%oxidative desulfurization%hydrogen peroxide
采用浸渍法制备了w(Nb)为15%的Nb/USY催化剂，通过XRD、BET等手段对催化剂进行表征分析，表明所制备的Nb/USY催化剂中Nb以高度分散的状态分布在USY分子筛的表面。以噻吩的异辛烷溶液为模拟油，H2O2为氧化剂，Nb/USY为催化剂进行氧化脱硫实验。结果表明：在反应温度为50℃、反应时间为90min、氧化剂H2O2与噻吩的物质的量比为10∶1、催化剂用量为原料总质量的1%的条件下，模拟油中的噻吩脱除率达到了83%，表明Nb/USY具有良好的催化氧化脱硫性能。
採用浸漬法製備瞭w(Nb)為15%的Nb/USY催化劑，通過XRD、BET等手段對催化劑進行錶徵分析，錶明所製備的Nb/USY催化劑中Nb以高度分散的狀態分佈在USY分子篩的錶麵。以噻吩的異辛烷溶液為模擬油，H2O2為氧化劑，Nb/USY為催化劑進行氧化脫硫實驗。結果錶明：在反應溫度為50℃、反應時間為90min、氧化劑H2O2與噻吩的物質的量比為10∶1、催化劑用量為原料總質量的1%的條件下，模擬油中的噻吩脫除率達到瞭83%，錶明Nb/USY具有良好的催化氧化脫硫性能。
채용침지법제비료w(Nb)위15%적Nb/USY최화제，통과XRD、BET등수단대최화제진행표정분석，표명소제비적Nb/USY최화제중Nb이고도분산적상태분포재USY분자사적표면。이새분적이신완용액위모의유，H2O2위양화제，Nb/USY위최화제진행양화탈류실험。결과표명：재반응온도위50℃、반응시간위90min、양화제H2O2여새분적물질적량비위10∶1、최화제용량위원료총질량적1%적조건하，모의유중적새분탈제솔체도료83%，표명Nb/USY구유량호적최화양화탈류성능。
A Nb/USY catalyst with 15% of Nb by mass was prepared by impregnation method, and characterized by XRD and BET. The catalytic oxidative desulfurization performances of the catalyst for gasoline were investigated by using the isooctane containing thiophene as the simulated gasoline and H2O2 as oxidant. The results showed that the Nb/USY catalyst had very good dispersion of Nb on the surface of USY, and exhibited excellent performance of catalytic oxidation desulfurization. Under the conditions of reaction temperature of 50℃, reaction time of 90min, the molar ratio of the oxidant to thiophene of 10:1, and the mass ratio of the catalyst to the gasoline of 1:100, the desulfurizition rate of the simulated gasoline was up to 83%.
