CaO對木屑水蒸氣氣化制取富氫燃?xì)獾挠绊?/H1>
發(fā)布時(shí)間：2018-03-06 15:28
本文選題：生物質(zhì) 切入點(diǎn)：水蒸氣氣化 出處：《林產(chǎn)化學(xué)與工業(yè)》2017年02期
論文類型：期刊論文
【摘要】：以木屑為生物質(zhì)原料,水蒸氣為氣化介質(zhì),CaO為催化劑,在固定床氣化爐中進(jìn)行生物質(zhì)催化氣化制取富氫燃?xì)?考察了CaO與木屑中碳元素的物質(zhì)的量比(n(Ca)/n(C))、氣化溫度和水蒸氣流量對生物質(zhì)水蒸氣氣化特性的影響。結(jié)果表明,當(dāng)n(Ca)/n(C)由0增加至1.0時(shí),H_2體積分?jǐn)?shù)由45.58%增至58.62%,產(chǎn)氣率由1.04 m~3/kg增至1.38 m~3/kg,當(dāng)n(Ca)/n(C)繼續(xù)增至1.5時(shí),兩者均有增加,但是變化不明顯;氣化溫度從700℃增至750℃時(shí),產(chǎn)氣中H_2體積分?jǐn)?shù)由51.78%增至58.62%,CO_2由19.89%降至12.60%,繼續(xù)升高溫度,H_2體積分?jǐn)?shù)逐漸降低,燃?xì)鉄嶂狄步档?水蒸氣流量由0.1 g/(min·g)增至0.34 g/(min·g)時(shí),H_2的體積分?jǐn)?shù)由58.62%增至62.55%,水蒸氣流量繼續(xù)增大時(shí),H_2的體積分?jǐn)?shù)和產(chǎn)氫率降低,燃?xì)鉄嶂狄步档汀Ｍㄟ^實(shí)驗(yàn)選擇的最佳氣化條件為以CaO為催化劑,n(Ca)/n(C)為1,氣化溫度750℃,水蒸氣流量為0.34 g/(min·g),此時(shí),制取的富氫燃?xì)庵蠬_2體積分?jǐn)?shù)達(dá)到最大為62.55%,產(chǎn)氫率為85.08 g/kg,燃?xì)鉄嶂禐?1.41 MJ/m~3。
[Abstract]:Hydrogen rich gas was prepared by catalytic gasification of biomass in a fixed bed gasifier using wood chips as biomass feedstock and steam as gasification medium Cao as catalyst. The effects of gasification temperature and water vapor flow rate on the gasification characteristics of biomass water vapor were investigated. When the volume fraction of H2 increased from 0 to 1.0, the volume fraction of H2 increased from 45.58% to 58.62and the gas production rate increased from 1.04 mc3kg to 1.38mcm3 / kg, and both of them increased, but the change was not obvious, when the temperature of gasification increased from 700 鈩，
本文編號：1575407
本文鏈接：http://sikaile.net/kejilunwen/huaxuehuagong/1575407.html
本文選題：生物質(zhì) 切入點(diǎn)：水蒸氣氣化 出處：《林產(chǎn)化學(xué)與工業(yè)》2017年02期 論文類型：期刊論文
【摘要】：以木屑為生物質(zhì)原料,水蒸氣為氣化介質(zhì),CaO為催化劑,在固定床氣化爐中進(jìn)行生物質(zhì)催化氣化制取富氫燃?xì)?考察了CaO與木屑中碳元素的物質(zhì)的量比(n(Ca)/n(C))、氣化溫度和水蒸氣流量對生物質(zhì)水蒸氣氣化特性的影響。結(jié)果表明,當(dāng)n(Ca)/n(C)由0增加至1.0時(shí),H_2體積分?jǐn)?shù)由45.58%增至58.62%,產(chǎn)氣率由1.04 m~3/kg增至1.38 m~3/kg,當(dāng)n(Ca)/n(C)繼續(xù)增至1.5時(shí),兩者均有增加,但是變化不明顯;氣化溫度從700℃增至750℃時(shí),產(chǎn)氣中H_2體積分?jǐn)?shù)由51.78%增至58.62%,CO_2由19.89%降至12.60%,繼續(xù)升高溫度,H_2體積分?jǐn)?shù)逐漸降低,燃?xì)鉄嶂狄步档?水蒸氣流量由0.1 g/(min·g)增至0.34 g/(min·g)時(shí),H_2的體積分?jǐn)?shù)由58.62%增至62.55%,水蒸氣流量繼續(xù)增大時(shí),H_2的體積分?jǐn)?shù)和產(chǎn)氫率降低,燃?xì)鉄嶂狄步档汀Ｍㄟ^實(shí)驗(yàn)選擇的最佳氣化條件為以CaO為催化劑,n(Ca)/n(C)為1,氣化溫度750℃,水蒸氣流量為0.34 g/(min·g),此時(shí),制取的富氫燃?xì)庵蠬_2體積分?jǐn)?shù)達(dá)到最大為62.55%,產(chǎn)氫率為85.08 g/kg,燃?xì)鉄嶂禐?1.41 MJ/m~3。
[Abstract]:Hydrogen rich gas was prepared by catalytic gasification of biomass in a fixed bed gasifier using wood chips as biomass feedstock and steam as gasification medium Cao as catalyst. The effects of gasification temperature and water vapor flow rate on the gasification characteristics of biomass water vapor were investigated. When the volume fraction of H2 increased from 0 to 1.0, the volume fraction of H2 increased from 45.58% to 58.62and the gas production rate increased from 1.04 mc3kg to 1.38mcm3 / kg, and both of them increased, but the change was not obvious, when the temperature of gasification increased from 700 鈩，
本文編號：1575407
本文鏈接：http://sikaile.net/kejilunwen/huaxuehuagong/1575407.html
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