煤中氫 的英文怎麼說
中文拼音 [méizhōngqīng]
煤中氫
英文
hydrogen content of coal
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煤 :
名詞(黑色固體礦物) coal
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氫 :
名詞[化學] (氣體元素) hydrogen (h)
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Determination of hydrogen sulfide of gas in urban area
城市
煤氣
中硫化
氫含量測定
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The convective term is solved by ausm + ( a sequel to ausm which means " the advection upstream splitting method " ). the 7 species 8 steps model and 7 species 7 steps model of hydrogen / air is used in the hydrogen reacting flowfield, the 9 species 5 steps model of methane, the 10 species 10 steps model of ethane and the 10 species 13 steps model of kerosene are used in the hydrocarbon reacting flowfield, the results of the distributions of velocity, mach number, pressure, static temperature, total temperature, species mass fraction and the combustion efficiency are gained, and the numerical results of the pressure of hydrogen and methane are compared with those of the experiment
計算
中通量項採用ausm +通量分裂格式,
氫反應流場採用
氫/空氣的七組元八方程模型和七組元七方程模型,碳
氫反應流場採用甲烷的九組元五方程模型、乙烯的十組元十方程模型和
煤油的十組元十三方程模型,得出了超燃發動機燃燒室流場的速度、馬赫數、壓力、靜溫、總溫和組元質量分數分佈及燃燒效率等性能參數,其
中氫和甲烷的計算壓力分佈與實驗結果進行了比較。
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Standard test methods for instrumental determination of carbon, hydrogen, and nitrogen in laboratory samples of coal and coke
煤和焦碳的實驗室樣品
中碳
氫和氮的儀器測定的標準試驗方法
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Effect of demineralization of coal on its sulfur evolution during pyrolysis in h2 atmosphere
礦物質脫除對
煤中硫在
氫氣熱解
中逸出的影響
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The authour investigate the dosing conditions and effect of the pac to the huanghe water - source, which includes the following four parts : the selection of the pac ; the confirmation of dosing scheme and effect of the pac ; the research of application of potassium permanganate in combination with pac ; the research of the pac ' s modification and the modified effectiveness. the experiment is mainly carried out on the pilot system in the jieyuan water plan of tianjin. the results of the reseach include the following : l ) the pac from zunhua plant is selected as the better carbon for the source water of tianjin through the experiment ; 2 ) through the pilot experiment we conclude that the pac ' s best adding point is the mixing tank and the better dose is 10mg / l, on which the codmn of filtered water can be decreased to 40 % and the effluent have no problem of odour and color ; 3the adsorbing experiment show that pac mainly adsorb the organic matters which molecular wt., distribution between 500 and 3000, and can adsorb organic matters whose molecular wt., distribution are bigger than 6000 if the dose of it is adequent ; 4 ) pac together with potassium permanganate can remove the organic matter more effectively than each of them alone, and reduce the rising trend of turbidity of the flotation ' s effluent due to adding pac ; 5 ) the thesis made a research on the surface properties and the adsorbing capability of the modified carbon by oxidizer : the modified carbon with 20 % h2o2 can remove more organic pollutants than the untreated one by 12 % when we add a higher dose of coagulant ; 6 ) the modification of reduction and loading metal ions are also sttldied, and drow the following conclusions : the modified carbon with 5 % ammonia can enhance the organic matter ' s removal effectiveness by 10 % to the tianjin source water than the untreated one, and the modified one with loading metal ion remove the organic matters from the tianjin source water better ( 8 % ) than the untreated one due to the strong affinity betwween the humic acid and copper ion
本文的實驗主要是在天津芥園水廠的
中試系統上完成的,論文的成果和結論主要包括: 1 )通過靜態實驗選定河北遵化活性炭廠生產的
煤質炭為適合天津原水的炭種; 2 )
中試實驗確定粉末活性炭的較佳投加點為混合池投加,較佳投加量為10mg l ,此時可使濾后水的cod _ ( mn )降低40 ,且可較好地控制濾后水的嗅味和色度; 3 )初步確定粉末活性炭對原水
中有機物的吸附主要集
中在分子量在500 - 3000范圍內,投量增大時可吸附部分分子量大於6000的有機物4 )
中試實驗表明:粉末活性炭與高錳酸鉀聯用可取得較兩者單獨應用時對有機物更好的去除效果,且對因投加粉末活性炭而造成的氣浮出水濁度升高有一定的改善作用; 5 )研究並初步確定氧化改性對粉末活性炭表面性質和有機物的去除效果的影響:粉末活性炭的氧化改性會使其表面的酸性官能團大量增強,表面極性增加;經20的過氧化
氫改性的活性炭在增大混凝劑投加量( fecl _ 3投量為15mg l )時對有機物的總體去除效果較原活性炭提高12 , 1次氯酸鈉改性活性炭對有機物的去除效果較原活性炭提高6 ; 6 )研究並初步確定還原改性、負載金屬離子對原水
中有機物的去除效果的影響:經5氨水改性的活性炭可提高天津源水
中有機物的去除率達到10 ;負載銅離子后的活性炭可提高對腐殖酸類物質的去除能力,一般可提高8左右。
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30 " is the project to produce 18ton / year synthetic ammonia and 30ton / year urea. the key equipment in the project are the copressor for the mixed gases of nitrogen and hydrogen and the compressor for carbon dioxide. reciprocating compressor as well as centrifugal compressor can be selected for this project. the different opinions for the selection of the compressor existed in 8medium scale fertilizer plants in which coal is used as the raw material. from the points of technology and cost, the analysis and comparison of using these two kinds of compressor were carried out. it is concluded that reciprocating pump is more appropriate
工程就是建成年生產能力達到18萬噸合成氨、 30萬噸尿素的項目,項目
中的關鍵設備為氮
氫氣壓縮機及二氧化碳壓縮機,壓縮機選型正介於往復式壓縮機和離心式壓縮機之間,國內各設計院在八家立項的以
煤為原料的
中化肥廠『 18 . 30 』工程初步設計
中選何種類型的壓縮機爭論不休,本文從技術及經濟的角度對此作了分析比較,並推薦採用往復式壓縮機,以供參考。
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China should work with the united states and others to develop diverse sources of energy, including through clean coal technology, nuclear, renewables, hydrogen, and biofuels
中國應與美國和其他國家共同發展能源多樣化,包括利用潔凈
煤技術、核能、可再生能源、
氫能和生化燃料。
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General specification for carbon and hydrogen analyzer - gravimetric method
重量法
煤中碳
氫測定儀通用技術條件
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Determination of carbon and hydrogen in coal - coulometric and gravimetric method
煤中碳和
氫的測定方法電量-重量法
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Determination of selenium in coal - hydride generation - atomic absorption method
煤中硒的測定方法
氫化物發生原子吸收法
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Standard test method for determination of arsenic and selenium in coal by the hydride generation atomic absorption method
用
氫化發生法原子吸收法測定
煤中砷和硒含量的標準試驗方法
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That should persuade companies to build a carbon price into their investment plans, and therefore to invest in gas - fired plants rather than in coal - fired ones, to spend more enthusiastically on biofuels and to pour research - and - development money into hydrogen and other clean options
這應該可以說服公司在建立他們的投資計劃當中把溫室氣體的價格考慮進去,因此導致投資燃氣工廠而不是燃煤工廠,更加熱情地在生物燃料上花費和傾瀉研究與發展的錢到氫和其他干凈的燃料上。