naphthenic 中文意思是什麼
naphthenic
解釋
環烷的環烴的-
Bc asphaltenes similar to petroleum asphaltenes and consist of aromatic nuclei, aliphatic chains, and naphthenic ring structures combined in three - dimensional network. but black carbon asphaltenes contains more aromatic carbon, oxygen - function groups, and less aliphatic chains
但碳黑瀝青質與原油瀝青質也是不同的，碳黑瀝青質的分子結構中含有更多的芳香結構組分和含氧基團，較少的脂肪側鏈組分。 -
Diesel oil alkali washing refining industrial test research for naphthenic acid removal
柴油纖維液膜堿洗脫酸精製技術工業試驗研究 -
Abstract : the synthetic method of pentaerythrito naphthenate by n on - acid catalyst sno was studied. the influences of mole ratio of ethanediol and naphthenic acid, a mount of catalyst, reation time, reation temperature etc. on est erification were discussed and the suitable processing conditions were found
文摘:介紹了用氧化亞錫非酸性催化劑催化合成環烷酸季戊四醇脂的方法，通過討論醇酸摩爾比、催化劑用量、反應時間、反應溫度等因素對該脂化反應的影響，從而確定了適宜的工藝條件 -
According to the features of naphthenic base oil ( i. e., high nitrogen and low sulfur content ) and based upon theoretical analysis of the h2s concentration needed for phase equilibrium of nickel sulfide and tungsten sulfide in hydrogen, the most economic quantity of sulfiding agent injected into the reactor for supplement of sulfur in lube oil hydrogenation catalysts was obtained
摘要針對環烷基油高氮、低硫的特點，通過對硫化鎢和硫化鎳在氫氣中相平衡態所需硫化氫濃度的理論分析，對反應器入口所需補硫量作了詳細的闡述，得出了最經濟的補充注硫量。 -
Abstract : a series of techniques producing lube base oil developed by ripp, including the technique for production of naphthenic lube oil, high viscosity base oil from sour crude and the api group base oil with viscosity index more than 120 from hydrocracking tail oil, were introduced
文摘:介紹了石油化工科學研究院開發的一系列潤滑油基礎油生產技術，主要有環烷基潤滑油生產的工藝技術，含硫原油生產高粘度指數基礎油的技術以及加氫裂化尾油制取粘度指數大於120的類基礎油技術。 -
Naphthenic having the characteristics of naphthense ， which are saturated hydrocarbons containing molecules with at least one closed ring of carbon atoms
環烷烴具有環烷特性的、至少包含一個碳原子團鏈的飽和烴。 -
Naphthenic having the characteristics of naphthense, which are saturated hy _ drocarbons containing molecules with at least one closed ring of carbon atoms
環烷烴具有環烷特性的、至少包含一個碳原子閉鏈的飽和烴。 -
The mechanism, parts, appearance characteristics, impact factors of the naphthenic acid ' s corrosion in the process of crude distillation were analyzed, and put forward the reasonable antisepsis measures were put forward
摘要分析了環烷酸在原油蒸餾過程的腐蝕機理、腐蝕部位、腐蝕的外觀特徵、影響因素，提出了合理的防腐措施。 -
Metalx ep120 is manufactured from a select naphthenic base oil and compounded with an emulsifier which forms a stable milky - white emulsion when mixed with water
敏得力ep120是優質多功能、極壓防銹型乳化金屬加工濃縮液，具備極強的冷卻性能和防銹特性。 -
Based on the analysis of corrosion mechanism of naphthenic acid, the major factors affecting the naphthenic acid corrosion, including crude oil composition, operation temperature, fluid velocity and flow pattern, pressure and metallurgy of equipment materials, are discussed
通過對環烷酸腐蝕機理的分析，指出原油組成、操作溫度、流速和流動狀態及設備材質等是影響環烷酸腐蝕的重要因素。
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