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| 利用Aspen plus對苯/甲苯/鄰二甲苯體系的直接分離序列和間接分離序列兩種方案進(jìn)行模擬分析,確定了最佳工藝條件;然后對兩種方案的能耗和固定成本進(jìn)行比較,結(jié)果表明前者較后者固定成本節(jié)約7.61%,能耗成本節(jié)約9%,年度總成本節(jié)約8.87%;最后分別用斜率判據(jù)、溫度增益判據(jù)和恒溫板判據(jù)三種方法確定了精餾塔的靈敏度板位置并建立了精餾系統(tǒng)的控制結(jié)構(gòu),通過動態(tài)模擬得出了系統(tǒng)面臨進(jìn)料流量和進(jìn)料組成擾動時控制不同靈敏度板的流量、再沸器熱負(fù)荷、塔板溫度和產(chǎn)品純度的過渡分析曲線,從而得出最佳溫度控制板位置。 |

木蟲 (著名寫手)
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The optimum conditions was determined by using Aspen plus simulation analysis for the use of benzene / toluene / ortho-xylene system of direct and indirect separation sequence separation. By comparison of fixed costs and energy costs of the two programs, we find that the former fixed costs are 7.61% smaller than the latter, and energy savings of 9%, the total annual cost savings of 8.87%. Finally, by using slope criterion, a heated plate temperature gain criterion and constant temperautre criterion,respectively, we have determined the sensitivity of the rectification column board position and established control structures distillation system, obtaining through dynamic simulation system faces the feed flow rate and feed composition disturbance flow control different sensitivities board transition reboiler heat load, temperature and product purity plates curve analysis, arriving at the optimum temperature control board position. 對這個專業(yè)有點點不熟悉,所以不是很地道。 |

木蟲 (著名寫手)
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