4篇
您的检索式：作者名="H.Schubert"
|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Experimental investigation of fluidized-bed reactor performance for oxidative coupling of methane显示文摘Performance of the oxidative coupling of methane in fluidized-bed reactor was experimentally investigated using Mn-Na2WO4/SiO2,La2O3/CaO and La2O3-SrO/CaO catalysts.These catalysts were found to be stable,especially Mn-Na2WO4/SiO2 catalyst.The effect of sodium content of this catalyst was analyzed and the challenge of catalyst agglomeration was addressed using proper catalyst composition of 2%Mn2.2%Na2WO4/SiO2.For other two catalysts,the effect of Lanthanum-Strontium content was analyzed and 10%La2O 3-20%SrO/CaO catalyst was found to provide higher ethylene yield than La2O3/CaO catalyst.Furthermore,the effect of operating parameters such as temperature and methane to oxygen ratio were also reviewed.The highest ethylene and ethane (C2) yield was achieved with the lowest methane to oxygen ratio around 2.40.5% selectivity to ethylene and ethane and 41% methane conversion were achieved over La2O3-SrO/CaO catalyst while over Mn-Na2WO4 /SiO2 catalyst,40% and 48% were recorded,respectively.Moreover,the consecutive effects of nitrogen dilution,ethylene to ethane production ratio and other performance indicators on the down-stream process units were qualitatively discussed and Mn-Na2WO4/SiO2 catalyst showed a better performance in the reactor and process scale analysis. | S.Jašo S.Sadjadi H.R.Godini U.Simon S.Arndt O.Görke A.Berthold H.Arellano-Garcia H.Schubert R.Schomäcker G.Wozny | 2012 | Journal of Natural Gas Chemistry2012，21，5： | 0 |
| 2 | 三十年来的选矿业进展(二)显示文摘3.静电选矿静电分选的应用领域已变得更加广阔。传统的应用范围主要限于海滨砂矿的重矿物(锆石、金红石、钛铁矿、独居石等)粗精矿精选作业。而今,已扩展到利用高压电选机选别一些下脚料(如电缆及电器件碎片)和利用自由落体式选矿机分选钾碱矿。严格说来,电选分离钾碱矿是钾碱矿选矿领域里最重要的成就。长期研究证实。 | H.Schubert 冯安生 | 1990 | 国外地质勘探技术1990，，8： | 0 |
| 3 | 用合欢木固氮来促进桉树人工林生长显示文摘夏威夷桉树人工林生长快,但许多地方缺氮。由于合成氮肥成本高,故一般采用合欢木与其它树种混交来补充氮。我们在夏威夷岛上哈马夸海岸的潮湿地带进行试验,试验设计采用五种随机配置方法,反复四次,以便比较。在48个月时得出总的干产量,合欢木纯林是109吨/公顷,合欢木占11%的林分是67吨/公顷,合欢木占34—66%的混交林是103—105吨/公顷,而施肥的桉树纯林是94吨/公顷。同时,混交林和合欢木纯林内土壤氮的总量比施肥的桉树纯林要高。因此,对于高产的人工林采用这种混交方法,合欢木能为桉树提供所需要的氮。 | Dean S.Debell Craig D.Whitesll Thomas H.Schubert 文彦 赵平 | 1991 | 中南林业调查规划1991，，2： | 0 |
| 4 | 用油酰基肌胺酸作捕收剂从方解石含量较高的矿石中浮选萤石的新进展显示文摘在东德依尔门诺(■■■au)选矿厂,—种新的捕收剂——油酰基肌胺酸,现正用以从方解石含量高于6%的矿石中浮选萤石(用油酸无法从这些矿石中产出酸级精矿)。对处理不同的矿石,要取得满意的结果,必须调整捕收剂和白雀树皮汁的用量。最佳浮选pH为8~6。与使用油酸的情况相反,当温度变化范围在10~60℃时,温度对分选效果几乎没有影响。Ca^(2+)及Fe^(2+)对萤石回收率影响不大,但Fe(3+)降低萤石的回收率。粒级为0.04~0.16mm时获得最高的萤石回收率。必须向尾矿中加入絮凝剂才能获得可供利用的纯净回水。 | H.Schubert H.Baldauf W.Kramer J.Schoenherr 李坊穗 | 1992 | 江西有色金属1992，6，4： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员