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生物質(zhì)Fe-Ce/白云石催化劑催化氣化試驗研究
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國家自然科學(xué)基金地區(qū)科學(xué)基金項目(51768054,、51764044,、51764046)、內(nèi)蒙古自然科學(xué)基金面上項目(2017MS(LH)0524),、內(nèi)蒙古科學(xué)技術(shù)廳項目(20180823)和內(nèi)蒙古自治區(qū)科技創(chuàng)新引導(dǎo)項目(KCBJ201877)


Preparation of Fe-Ce/Dolomite Catalyst and Its Catalytic Performance of Gasification Biomass
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    摘要:

    采用浸漬法制備了Fe-Ce/白云石催化劑,運用SEM和XRD檢測對催化劑進行了表征,,在自行搭建的固定床氣化爐試驗臺上進行高溫水蒸氣催化氣化試驗,,研究了助劑含量、氣化溫度等因素對松木棒水蒸氣氣化特性的影響,,以及催化劑使用次數(shù)對氣體組分和催化劑積碳沉積的影響,。試驗結(jié)果表明,助劑Fe和Ce能夠很好地負載于白云石上,,助劑負載量為8%Fe-2%Ce的催化劑氣化效果較好,。用該催化劑進行不同溫度的松木棒水蒸氣氣化試驗,溫度從750℃升高至950℃,,產(chǎn)氣率,、產(chǎn)氫率分別由750℃的1.05m3/kg和31.67g/kg提高到900℃的1.56m3/kg和65.39g/kg,與無催化劑的氣化試驗相比,,900℃的產(chǎn)氣率,、產(chǎn)氫率分別增加了0.15m3/kg和16.27g/kg,氫氣體積分數(shù)由39.02%升高至46.95%,。在800℃時對催化劑進行重復(fù)利用3次氣化試驗,,氫氣體積分數(shù)由第1次的40.34%降低至第2次的38.97%和第3次的34.95%,積碳量由第1次的21.55mg/g升至第3次的31.61mg/g,,催化活性降低,。

    Abstract:

    Fe-Ce/dolomite catalyst was prepared by the impregnation method, and the catalyst was characterized by SEM and XRD. The hightemperature water vapor catalytic gasification test was carried out on a selfbuilt fixedbed gasification furnace test station, and the content of the auxiliary agent was studied. The effect of the gasification temperature and other factors on the gasification characteristics of the water vapor of pine rod and effect of number of times of catalyst on deposition of gas component and catalyst were researched. The experimental results showed that the auxiliary Fe and Ce can be well supported on the dolomite, and the catalyst gasification effect of the assistant content of 8% Fe-2% Ce was good. Fixed the catalytic temperature, and the catalyst was used for making the pine wood rod at different temperatures. In the steam gasification test, when the temperature was increased from 750℃ to 950℃, the gas production rate and hydrogen production rate were increased from 1.05m3/kg and 31.67g/kg at 750℃ to 1.56m3/kg and 65.39g/kg at 900℃, respectively. Compared with the gasification test without catalyst, the hydrogen production rate was increased by 0.15m3/kg and 16.27g/kg, and the hydrogen volume fraction was increased from 39.02% to 46.95%, respectively. The third gasification test of the catalyst was carried out at 800℃. The volume fraction of hydrogen was decreased from 40.34% in the first time to 38.97% in the second time and 34.95% in the third time. The amount of carbon deposition was increased from the first time of 21.55mg/g to the third time of 31.61mg/g.

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牛永紅,劉琨琨,蔡堯堯,李義科,王文才.生物質(zhì)Fe-Ce/白云石催化劑催化氣化試驗研究[J].農(nóng)業(yè)機械學(xué)報,2020,51(4):361-366. NIU Yonghong, LIU Kunkun, CAI Yaoyao, LI Yike, WANG Wencai. Preparation of Fe-Ce/Dolomite Catalyst and Its Catalytic Performance of Gasification Biomass[J]. Transactions of the Chinese Society for Agricultural Machinery,2020,51(4):361-366.

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  • 收稿日期:2019-08-20
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  • 在線發(fā)布日期: 2020-04-10
  • 出版日期: 2020-04-10
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