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  本文選題：等離子　切入點：旋轉(zhuǎn)滑動弧　出處：《浙江大學》2015年碩士論文　論文類型：學位論文

【摘要】：氫能具有熱值高、無污染、適用范圍廣的特點,生物質(zhì)燃料因其可再生、對環(huán)境友好日益引起人們的關注。利用生物質(zhì)制取氫氣是一種能夠解決能源和環(huán)境問題的有效途徑之一。常規(guī)燃料的水蒸氣重整制氫反應需在高溫下進行,消耗了大量的熱量,同時燃料依賴于化石燃料也制約了該技術(shù)的可持續(xù)發(fā)展�；瑒踊〉入x子處理技術(shù)作為新型的燃料重整技術(shù),越來越受到國內(nèi)外研究學者的關注。 本文采用了兩種旋轉(zhuǎn)滑動弧對以甘油和菜籽油為代表的生物質(zhì)燃料重整反應進行了研究,驗證了等離子重整燃料制氫的可行性： (一)在拉法爾噴管滑動弧等離子反應器重整甘油制氫的實驗中,反應產(chǎn)生的氣相產(chǎn)物主要成分為H2、CO、CH4、CO2,其中H2和CO占比達到了70%;當其他工況不變,僅增大水/甘油比時,甘油氣相轉(zhuǎn)化率和氣相產(chǎn)物流量降低,氫氣收率略有增大；當其他工況不變,僅增載氣流量時,甘油氣相轉(zhuǎn)化率和氣相產(chǎn)物流量先升高后降低,功率增大；當其他工況不變,僅增電壓時,甘油氣相轉(zhuǎn)化率和氣相產(chǎn)物流量增大,功率增大。在本實驗中,得到的最適宜條件為水／甘油比為1:1,氮氣流量為10L/min,電壓10KV,此時甘油氣相轉(zhuǎn)化率為47.58%、氫氣選擇性為37.6%、一氧化碳選擇性為36.4%。 (二)在磁驅(qū)動滑動弧等離子反應器重整菜籽油的實驗中,反應產(chǎn)生的氣相產(chǎn)物主要成分為H2、CO2、CO、CH4、C2H2、C2H4和C2H6,且產(chǎn)物中合成氣所占比重超過50%,H2(41-53%)、CO(12-13%),除CO2可燃氣體組分在95-98%。當其他工況不變,僅增大菜籽油流量時,菜籽油氣相轉(zhuǎn)化率,氣相產(chǎn)物流量先升高后降低；當其他工況不變,僅增載氣流量時,甘油氣相轉(zhuǎn)化率和氣相產(chǎn)物流量先升高后降低,功率減��；當其他工況不變,僅增電壓時,甘油氣相轉(zhuǎn)化率和氣相產(chǎn)物流量增大,功率增大。綜合考慮各評價指標,當菜籽油3mL/min,氮氣流量為10L/min,電壓10kV時具有較好的制氫效果,此時菜籽油氣相轉(zhuǎn)化率為25.62%、氫氣選擇性為43.4%、氣相產(chǎn)物流量為1.04L/min.
[Abstract]:Hydrogen energy has the characteristics of high calorific value, no pollution and wide application range. Making hydrogen from biomass is one of the effective ways to solve the energy and environmental problems. The steam reforming of conventional fuel for hydrogen production takes place at high temperature and consumes a lot of heat. At the same time, the dependence of fuel on fossil fuels also restricts the sustainable development of the technology. As a new type of fuel reforming technology, sliding arc plasma treatment has attracted more and more attention of domestic and foreign researchers. In this paper, two rotating sliding arcs were used to study the reforming reaction of biomass fuel represented by glycerol and rapeseed oil, and the feasibility of hydrogen production from plasma reforming fuel was verified. (1) in the experiment of reforming glycerol for hydrogen production in Rafal nozzle sliding arc plasma reactor, the main component of the gas phase product produced by the reaction is H _ 2H _ 2CO _ (4) CO _ (2), in which the H _ 2 and CO ratios reach 70%, and when the water / glycerol ratio is increased only when other conditions are not changed, The gas conversion of glycerol and the flow rate of gas product decreased, and the hydrogen yield increased slightly. When the flow rate of gas was increased only, the conversion rate of glycerol and the flow rate of gas product increased first and then decreased, and the power increased when the other conditions were unchanged. When the voltage is increased only, the conversion rate of glycerol gas phase and the flow rate of gas product increase, and the power increases. The optimum conditions are as follows: water / glycerol ratio is 1: 1, nitrogen flow rate is 10 L / min, voltage is 10 KV, gas conversion of glycerol is 47.58, selectivity of hydrogen is 37.6 and selectivity of carbon monoxide is 36.4. (2) in the experiment of reforming rapeseed oil by magnetically driven sliding arc plasma reactor, the main components of the gaseous product produced by the reaction are H _ 2CO _ 2C _ 2C _ 2C _ 2H _ 4 and C _ 2H _ 6, and the proportion of syngas in the product is more than 50 H2H _ 2N _ 41-53 CO _ (12-1313), except that the combustible gas component of CO2 is 95-98. When the flow rate of rapeseed oil was increased, the gas phase conversion rate of rapeseed oil and the flow rate of gaseous product first increased and then decreased, while the gas conversion rate and gas product flow rate of glycerol increased first and then decreased, while the flow rate of gas product increased first and then decreased. When the other conditions are constant and the voltage is only increased, the gas phase conversion rate and gas product flow rate of glycerol increase, and the power is increased. Considering the evaluation indexes, when the rapeseed oil is 3 mL / min, the nitrogen flow rate is 10 L / min, and the voltage is 10 kV, the effect of hydrogen production is better. The gas phase conversion of rapeseed oil is 25.62%, the selectivity of hydrogen is 43.4%, and the flow rate of gaseous product is 1.04L / min.
【學位授予單位】：浙江大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：TQ116.2;TK6

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