【正文】 ................................................................................................. 1 赤泥的產(chǎn)生 ............................................................................................... 1 赤泥的基本性質(zhì) ....................................................................................... 2 赤泥的危害 ................................................................................................ 5 赤泥的利用現(xiàn)狀 ................................................................................................. 5 建筑和結(jié)構(gòu)材料 ....................................................................................... 6 綜合回收 ................................................................................................... 7 催化劑 ....................................................................................................... 9 氨分解制氫 ........................................................................................................ 10 甲烷催化裂解催化劑研究進(jìn)展 .........................................................................11 論文研究內(nèi)容及創(chuàng)新之處 ................................................................................ 12 研究內(nèi)容 ................................................................................................. 12 創(chuàng)新點(diǎn) ..................................................................................................... 12 2 試驗(yàn)方法 ..................................................................................................................... 13 實(shí)驗(yàn)原料 ........................................................................................................... 13 主要實(shí)驗(yàn)儀器 ................................................................................................... 13 催化劑的制備 ................................................................................................... 14 酸溶 過濾 堿沉淀法 ............................................................................... 14 催化甲烷裂解的過程 ....................................................................................... 14 樣品物化性質(zhì)表征 ........................................................................................... 15 綜合熱分析儀（ TG） ............................................................................ 15 X 射線熒光分析儀（ XRF） ................................................................... 16 透射電鏡（ TEM） ................................................................................. 16 氮?dú)馕絻x（ N2sorpotion） ................................................................. 16 掃描電鏡（ SEM） ................................................................................. 16 催化劑性能測試 ............................................................................................... 17 改性前后催化劑性能研究 ....................................................................... 17 不同煅燒溫度改性赤泥催化劑性能研究 .............................................. 17 3 催化劑性能研究 ......................................................................................................... 19 TG 分析 .............................................................................................................. 19 XRF 分析 ........................................................................................................... 20 SEM 分析 ........................................................................................................... 20 赤泥原樣與 450℃ 煅燒改性赤泥的 SEM 分析 ..................................... 20 450℃ 和 600℃ 煅燒的改性赤泥 SEM 分析 ............................................ 21 N2 吸附分析 ...................................................................................................... 24 TEM 分析 ........................................................................................................... 25 實(shí)驗(yàn)結(jié)果與分析 ............................................................................................... 27 改性前后催化劑性能比較 ...................................................................... 27 不同煅燒溫度改性催化劑性能比較 ...................................................... 29 結(jié)論 ................................................................................................................................. 31 致謝 .................................................................................................... 錯(cuò)誤 !未定義書簽。 關(guān)鍵詞： 赤泥；改性處理；催化劑；甲烷催化裂解；制氫 Abstract Red mud is solid waste produced in alumina China red mud is produced more than 30 million tons each year,At present, red mud most is dammed to stockpiling , which not only occupy much land but also cause pollution of the environment and addition,red mud are rich in Fe, Al, Si, Ti and other active ingredients, it’s urgent to solve the problem though safe disposal and utilization of red mud of the alumina CH4 pyrolysis produces only carbon and hydrogen,no other COx gases,which makes hydrogen purification process , the catalytic cracking of methane bee a valid path to replace methane catalytic reforming, partial oxidation of methane and other traditional craft to product hydrogen. In this paper, Bayer red mud as the research object, using the acidsolublealkali and acid precipitationfiltrationits alkaline precipitation modification, catalyst samples characterized were analytics by means of a modern catalyst and then use pressurized gassolid reaction experimental phase catalytic device CH4 deposition of hydrogen catalytic results showed that red mud through modification, have higher methane catalytic cracking activity of the catalyst performance though different temperatures found more conducive to hightemperature pyrolysis of methane reaction, to improve the conversion rate of methane hydrogen cracking big beneficial. Keywords: red mud。因此，甲烷催化裂解成為一條替代甲烷催化重整、甲烷部分氧化等傳統(tǒng)工藝生產(chǎn)氫的有效路徑 。我國每年產(chǎn)生的赤泥為 3000 萬噸以上，目前赤泥大多仍采用筑壩的方式進(jìn)行堆存， 占用了大量土地，也對環(huán)境和水資源造成了嚴(yán)重的污染。 作者簽名： 日期： 年