煤中氮 的英文怎麼說

中文拼音 [méizhōngdàn]
煤中氮 英文
nitrogen content of coal
  • 煤 : 名詞（黑色固體礦物） coal
  • 氮 : 名詞[化學] nitrogen （7號元素, 符號n）
  1. 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
  2. Direct separation of co _ ( 2 ) from flue gas will lead to a reduction of power generation efficiency and an increase of power generation cost. the content of co _ ( 2 ) in flue gas is only about 3 - 15 %, which will lead to complicated separation process and high cost. this is because co _ ( 2 ) separation is very difficult from common flue gas, which has low co _ ( 2 ) concentration and high n _ ( 2 ) concentration at normal pressure

    從鍋爐排煙中分離co _ 2將在一定程度上使電站效率降低，發電成本增加，其主要原因是燃煤電站鍋爐排煙中co _ 2濃度一般僅為3 15 ，在較低的壓力下從以氮氣為主要成分的混合氣體中分離較低濃度的co _ 2氣體的難度很大，從而導致分離設備復雜，成本較高。
  3. Sulfur dioxide, emitted by the industrial production and domestic burning fuel, and nitrogen oxides, emitted by the car exhausts and burning petrol are absorbed by the rain, forming larger raindrops, and falling on the ground. this is called acid rain. the main fuel in china is coal, which emits mainly sulfur dioxide, so the acid rain in china is sulfuric acid type of acid rain

    工業生產民用生活燃燒煤炭排放出來的二氧化硫，燃燒石油以及汽車尾氣排放出來的氮氧化物，經過雲內成雨過程，即水氣凝結在硫酸根硝酸根等凝結核上，發生液相氧化反應，形成硫酸雨滴在下降過程中不斷合併吸附沖刷其它含酸雨滴和含酸氣體，形成較大雨滴，最後降落在地面上，形成了酸雨。
  4. 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。
  5. Standard test methods for nitrogen in the analysis sample of coal and coke

    煤和焦炭分析樣品中氮的標準測試方法
  6. The article describes some effective factors and countermeasures of accurate degree in the half minim steam way measuring the nitrogen in the coal, according to the standard of gb / t19227 - 2003 and the practical operating experience of the author

    摘要按gb / t19227 - 2003標準並結合筆者的實際操作經驗，淺析操作中影響半微量蒸汽法測定煤中氮準確度的若干影響因素及解決對策。
  7. Determination of nitrogen in coal and coke semi - micro gasification method

    煤和焦炭中氮的測定方法半微量蒸汽法
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