【摘要】：采用兩段反應(yīng)器對(duì)油頁(yè)巖熱解初級(jí)揮發(fā)分進(jìn)行二次催化反應(yīng)特性研究,考察了第2段反應(yīng)器內(nèi)不同的催化載體、反應(yīng)氣氛與停留時(shí)間對(duì)油氣收率及品質(zhì)的影響。結(jié)果表明,在考察的停留時(shí)間范圍內(nèi)頁(yè)巖灰具有相對(duì)適中的催化活性來(lái)調(diào)控?zé)峤鈸]發(fā)分產(chǎn)物的二次反應(yīng),水蒸氣氣氛能夠進(jìn)一步提高熱解油收率約5%,并能夠在一定程度上抑制裂解氣體中C_2~C_3組分的生成。頁(yè)巖灰作為催化載體能夠轉(zhuǎn)化熱解油中VGO(餾程350℃)等重質(zhì)組分,隨停留時(shí)間增加油品餾程向輕組分轉(zhuǎn)移。油品組分GC-MS結(jié)果表明,較短停留時(shí)間內(nèi)(3 s),水蒸氣添加能夠有效抑制熱解油中脂肪烴類(lèi)的過(guò)度裂解,與氮?dú)庀啾忍岣咂裼宛s分含量20%以上。過(guò)長(zhǎng)的停留時(shí)間(3~5 s)會(huì)造成VGO等餾分縮聚生成焦炭,從而大幅降低熱解油收率。
[Abstract]:A two-stage reactor was used to study the secondary catalytic reaction characteristics of primary volatile compounds from oil shale pyrolysis. The effects of different catalytic carriers, reaction atmosphere and residence time on the oil and gas yield and quality in the second stage reactor were investigated. The results show that shale ash has relatively moderate catalytic activity to regulate the secondary reaction of pyrolytic volatile products in the range of residence time. The steam atmosphere can further improve the pyrolytic oil yield of about 5% and to some extent inhibit the formation of C_2~C_3 components in the pyrolysis gas. Shale ash can be used as catalyst carrier to transform VGO (distillation range 350 鈩，

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