查询词典 mercaptans

Aromatic Mercaptans and Sulfides.

芳香硫 醇及硫化物

Light straight run gasoline, lower-boiling range distillates and other non-hydrotreated fuels ("sour stocks") contain sulfur compounds such as mercaptans, that must be removed ("extraction/sweetening") to avoid problems with odor and corrosion, or prior to catalytic reforming and catalytic alkylation processes.

轻质直馏汽油、低沸点蒸馏油和其它未经加氢处理过的燃油含有硫醇类硫化物，须采取措施将其去除以免引起异嗅或腐蚀问题，或者须在催化重整和催化烷基化反应工序之前将其脱除以避免毒化催化剂。

The impure carbon dioxide which can be obtained from any available source of carbon dioxide will typically contain as impurities sulfur compounds such as carbonyl sulfide, hydrogen sulfide, dimethyl sulfide, sulfur dioxide and mercaptans, hydrocarbon impurities such as aldehydes, alcohols, aromatics, propane, ethylene, and other impurities such as water, and carbon monoxide.

可由任何二氧化碳源得到的低纯度二氧化碳通常含有以下杂质：硫化合物，例如硫化羰、硫化氢、二甲硫、二氧化硫和硫醇；烃杂质，例如醛、醇、芳族化合物、丙烷、乙烯；以及其它杂质，例如水和一氧化碳。

The results indicated that the total hydrodesulfurization ratio of sulfur-containing compounds of FCC gasoline was 86.3%, sulfide and tetrahydrothiophene were completely conversed, the hydrodesulfurization ratio of mercaptans was 96.6%, the hydrodesulfurization ratio of thiophene was 78.8%, the hydrodesulfurization ratio of alkyl-substituted thiophene was 85.8%, the hydrodesulfurization ratio of benzothiophene was 81.4% The conversed products of 3-methylthiophene were including little sulfur specie, isomerized sulfur specie (2-methylthiophene) and larger sulfur specie (2, 5-dimethylthiophene, 2,4-dimethylthiophene, 2,3-dimethylthiophene).

结果表明FCC汽油硫化物总脱硫率为86.3%，其中，硫醚和四氢噻吩的转化率都达到100%，硫醇硫转化率96.6%，噻吩硫转化率78.8%，烷基噻吩转化率85.8%，苯并噻吩转化率81.4%。3-甲基噻吩在OTA催化剂上的转化产物中含有小分子，异构硫化物（2-甲基噻吩），以及大分子异构硫化物（如2，5-二甲基噻吩、2，4-二甲基噻吩和2，3-二甲基噻吩）。

Examples of metal chelating groups include hydroxides especially aryl or heteroaryl hydroxides such as phenolic hydroxides; amines which may be aliphatic aryl or heteroaryl; mercaptans which may be aliphatic aryl or heteroaryl; carboxylic acids which may be aliphatic aryl or heteroaryl; oximes and ketoximines; acetarylamides; hydroxy silanes and silicones; N-containing heterocycles such as imidazoles benzimidazoles triazoles benzotriazoles thiazoles isothiazoles acid anhydrides and more preferably acid groups (especially carboxylic acid groups phosphoric acid groups polyphosphoric acid groups phosphonic acid groups sulphuric acid groups and sulphonic acid groups).

金属螯合组的例子包括氢氧化物，特别是芳基或如酚醛氢氧化物杂氢氧化物；胺可能是脂肪族，芳基或杂；硫醇可能是脂肪族，芳基或杂，这可能是脂肪族，芳基或羧酸杂；肟和ketoximines； acetarylamides；羟基硅烷和有机硅，含N，如咪唑，苯并咪唑类，三唑类，苯并三氮唑，噻唑类，isothiazoles，酸酐杂环，多最好酸组（特别是羧酸团体，磷酸，团体，多聚酸组，膦酸组，硫酸团体和磺酸组）。

I go to school at night.

我是上上学。

Clear Tip Nasal Aspirator: A soft time and gentle suction action makes removing excess mucus easy.

鼻吸明确提示：一个柔软的时间和温柔吸力行动使消除过剩的粘液容易。