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yyrhyw木蟲(chóng) (正式寫(xiě)手)
堅(jiān)持就是勝利！
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[求助]
急需要翻譯這段，謝謝
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The CO2-binding by Ca-Mg-silicates in direct aqueous carbonation of oil shale ash and steel slag This study was focused on carbonation of waste materials having low water-solubility in which Ca and Mg are generally bound as silicates. Here, pulverized firing oil shale ash (PFA from Narva Power Plants, Estonia), electric arc furnace slag (EAFS, types 1 and 2 from Uddeholm Tooling, Sweden) and ladle slag (LS from Uddeholm Tooling, Sweden) were studied as sorbents for binding CO2 from flue gases in direct aqueous mineral carbonation process. The experiments were carried out at room temperature and atmospheric pressure.Results showed that Ca-Mg-silicate phases bound up to 9 g of CO2 per 100 g of initial ash, which formed 30% of the total CO2 bound in direct aqueous carbonation of PFA. The CO2 uptakes for steel slags (EAFS1, EAFS2 and LS) were 8.7g CO2/100 g EAFS1, 1.9 g CO2/100 gEAFS2 and 4.6 g/100g LS. Quantitative XRD analysis indicated that Ca2SiO4 and Ca3Mg(SiO4)2 were the main CO2 binding low solubility components of oil shale ash as well as steel slags. The main carbonation product was calcite (CaCO3), indicating that Mg-compounds were not reactive towards CO2 at these mild conditions. Based on multifaceted studies on carbonation of oil shale ash, a new method for eliminating CO2 from flue gases by Cacontaining waste material was proposed. The process includes contacting the aqueous suspensions of Ca-containing waste material with CO2 containing flue gas in two steps: in the first step the suspension is bubbled with flue gas keeping the pH levels in the range of 10–12 and in the second step keeping the pH levels in the range of 7–8. The water-soluble components such as free lime are carbonated in the first step and the components of low solubility, in which Ca is generally contained in the form of silicates, are carbonated in the second step. |
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cheungsober
木蟲(chóng) (正式寫(xiě)手)
- 翻譯EPI: 9
- 應(yīng)助: 2 (幼兒園)
- 金幣: 2382.4
- 散金: 3
- 紅花: 1
- 帖子: 498
- 在線: 111.1小時(shí)
- 蟲(chóng)號(hào): 217544
- 注冊(cè): 2006-03-12
- 專(zhuān)業(yè): 生物化學(xué)
【答案】應(yīng)助回帖
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Mally89: 金幣+1, 感謝應(yīng)助，歡迎常來(lái)！~吼吼！~\(^o^)/~ 2012-04-02 20:29:18
yyrhyw: 金幣+20, 翻譯EPI+1, ★有幫助, 謝謝 2012-04-03 20:25:29
Mally89: 金幣+1, 感謝應(yīng)助，歡迎常來(lái)！~吼吼！~\(^o^)/~ 2012-04-02 20:29:18
yyrhyw: 金幣+20, 翻譯EPI+1, ★有幫助, 謝謝 2012-04-03 20:25:29
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油母頁(yè)巖灰和鋼鐵渣這項(xiàng)研究的重點(diǎn)是硅酸鹽礦物作為具有低水溶性的鈣和鎂一般結(jié)合的廢棄材料碳化水直接碳化鈣鎂硅酸鹽的 CO2結(jié)合。在這里，煤粉電弧爐燒油母頁(yè)巖灰 （從納爾瓦發(fā)電廠、 愛(ài)沙尼亞 PFA），渣 (EAFS，從烏德霍姆模具、 瑞典的類(lèi)型 1 和 2） 和鋼包渣 (從烏德霍姆模具、 瑞典 LS) 作為脫硫劑在結(jié)合直接水礦物碳化過(guò)程中的煙氣中的二氧化碳進(jìn)行了研究。在室溫和大氣壓力條件下進(jìn)行了實(shí)驗(yàn)。結(jié)果顯示，鈣 鎂硅酸鹽階段結(jié)合達(dá) 9 克的二氧化碳每 100 克的初始灰，形成直接水性碳化的煤灰中的 CO2 束縛的總數(shù)的 30%。鋼鐵渣 (EAFS1、 EAFS2 和 LS) 的二氧化碳吸收了 8.7 g CO2/100 g EAFS1，CO2/100 gEAFS2 和 4.6 g/100 g LS 1.9 g。定量 XRD 分析顯示，Ca2SiO4 和 Ca3Mg （SiO4） 2 是主要的二氧化碳綁定低溶解度組件的油母頁(yè)巖灰，以及鋼鐵渣。碳化主要產(chǎn)品是方解石 (CaCO3)，該值指示鎂化合物對(duì)二氧化碳在這些溫和的條件下不起反應(yīng)。 基于對(duì)碳化的油母頁(yè)巖灰多方面研究，提出了消除煙氣中的二氧化碳含鈣廢物材料的新方法。聯(lián)系的含鈣廢物材料用二氧化碳包含兩個(gè)步驟中的煙氣的水質(zhì)懸浮液的過(guò)程包括： 暫停冒泡與煙氣保持 pH 水平，范圍在 100 至 120 和保持 pH 水平 b 的范圍中的第二個(gè)步驟中的第一步。水溶性成分等免費(fèi)石灰被碳酸的第一步和組件的溶解度很低，通常包含鈣的硅酸鹽礦物，形式被碳酸在第二步。 |
2樓2012-04-02 17:03:52
cheungsober
木蟲(chóng) (正式寫(xiě)手)
- 翻譯EPI: 9
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- 帖子: 498
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- 蟲(chóng)號(hào): 217544
- 注冊(cè): 2006-03-12
- 專(zhuān)業(yè): 生物化學(xué)
3樓2012-04-02 17:05:44
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