基于Aspen Plus用戶模型技術(shù)的油頁(yè)巖熱解過(guò)程模擬
發(fā)布時(shí)間:2018-06-28 05:09
本文選題:油頁(yè)巖 + 用戶模型; 參考:《化工進(jìn)展》2017年05期
【摘要】:建立了基于油頁(yè)巖化學(xué)結(jié)構(gòu)的熱解動(dòng)力學(xué)模型,利用Fortran語(yǔ)言對(duì)熱解主要組分的數(shù)學(xué)模型進(jìn)行編寫,基于用戶模型嵌入到Aspen Plus軟件中,對(duì)主要組分產(chǎn)率隨溫度變化進(jìn)行了模擬計(jì)算,并與文獻(xiàn)實(shí)驗(yàn)數(shù)據(jù)進(jìn)行對(duì)比。結(jié)果表明:CO和CH_4模擬值與實(shí)驗(yàn)數(shù)據(jù)吻合較好;CO_2的模擬值約在600℃之前有較好的契合度,由于模擬中未考慮礦物質(zhì)分解,導(dǎo)致600℃之后有一定偏差;H2的產(chǎn)率曲線模擬值與文獻(xiàn)實(shí)驗(yàn)值在開(kāi)始階段比較一致,隨著時(shí)間的延長(zhǎng),偏離程度慢慢變大;550℃之前,頁(yè)巖油的模擬值與文獻(xiàn)實(shí)驗(yàn)值吻合程度較好,在高溫段的預(yù)測(cè)有一定偏差。同時(shí)對(duì)不同溫度下主要組分的產(chǎn)率隨時(shí)間的變化預(yù)測(cè)發(fā)現(xiàn):隨著時(shí)間的延長(zhǎng),主要組分的產(chǎn)率先快速增加之后逐漸穩(wěn)定在一個(gè)恒定值;溫度較低時(shí),主要組分的產(chǎn)率隨著時(shí)間的延長(zhǎng)而增加。當(dāng)進(jìn)一步提高熱解溫度,完成有機(jī)質(zhì)分解所需要的時(shí)間逐漸縮短;在同一時(shí)間下,主要組分產(chǎn)率隨熱解溫度的增加而升高。
[Abstract]:A kinetic model of pyrolysis based on the chemical structure of oil shale was established, and the mathematical model of the main pyrolysis components was compiled by using Fortran language. The model was embedded into Aspen Plus software based on the user model. The yield of main components with temperature was simulated and compared with the experimental data. The results show that the simulated values of 10% CO and CH4 are in good agreement with the experimental data. The simulated values of COK2 have a good agreement before 600 鈩,
本文編號(hào):2076875
本文鏈接:http://sikaile.net/kejilunwen/shiyounenyuanlunwen/2076875.html
最近更新
教材專著