查询词典 naphtha

Research on the Over critical and Overflow at Variable Conditions of Marine Steam Turbine;2. Strongly total domination edge critical graphs;3. This paper measures the critical energy of detonation of hydrocarbon fuel(butane,naphtha,pentene,hexene,JC5) and air mixtures using Bruceton method in the rectangular shock tube.

该文在矩形激波管内采用布鲁塞顿法测定了丁烷、石脑油、戊烯、己烯、JC5等碳氢燃料与空气混合物形成爆轰时所需的临界起爆能，并根据所测定的临界起爆能的大小，分析比较了这几种碳氢燃料的相对爆轰敏感度及相应的安全性能，最后讨论了分子量，分子中键的饱和度和分子结构等因素对碳氢燃料临界起爆能及相应的安全性能的影响。

This paper measures the critical energy of detonation of hydrocarbon fuel(butane,naphtha,pentene,hexene,JC5) and air mixtures using Bruceton method in the rectangular shock tube.

该文在矩形激波管内采用布鲁塞顿法测定了丁烷、石脑油、戊烯、己烯、JC5等碳氢燃料与空气混合物形成爆轰时所需的临界起爆能，并根据所测定的临界起爆能的大小，分析比较了这几种碳氢燃料的相对爆轰敏感度及相应的安全性能，最后讨论了分子量，分子中键的饱和度和分子结构等因素对碳氢燃料临界起爆能及相应的安全性能的影响。

The ZSM-5/mordenite/zeolite Y intergrowth molecular sieve can be used for preparing ethylene and propylene by catalytic-cracking naphtha in the industrial production.

该ZSM-5/丝光沸石/Y沸石共生分子筛可用于石脑油催化裂解制乙烯丙烯的工业生产中。

The determination of lead content in naphtha by graphite furnace atomic absorption spec-troscopy was studied with tetrahydrofuran as solvent, nickelous nitrate as matrix modifier and suitable amount of iodine solution added in samples.

将试样用四氢呋喃稀释，加入适量碘溶液，以硝酸镍为基体改进剂，研究了用石墨炉原子吸收光谱法直接进样测定石脑油中的铅含量。

The main objective of this research project is to modify the Methyl-Acetylene/propadiene selective hydrogenation reaction system of the No.3 Naphtha Cracker in CPC. The original gas phase reaction system was redesigned to a liquid phase reaction so that higher propylene selectivity was achieved and lower rates of propane and green oil were produced. To recover effectively the higher production of valuable propylene from the reaction system, the following fractionator was also redesigned.

本研究之目的在於修改中油公司三轻工场老旧的甲基乙炔／丙二烯选择性氢化气相反应系统，使成为液相反应系统，藉由液相反应的优异性，提高由MAPD氢化得到丙烯之选择率，同时降低丙烷及绿油产率，以增加丙烯产率，另亦修改丙烯精馏系统，以提升蒸馏塔提纯之效率。

The reformate raffinate is catalytically hydrotreated to remove unsaturated hydrocarbons under low pressure for making high quality solvent naphtha.

苏勇在低压的条件下进行重整抽余油加氢脱不饱和烃制优质溶剂油的试验。

With the advantages of simple flow, easy operation, mild reaction condition, low investment and high quality products, the catalyst and process for solvent naphtha production by hydrogenation of reformed raffinate that we developed have been applied widely in 10 refineries in Dushanzi, Urumqi, Tianjin, Guangzhou and other cities and have generated clear economic profits and social benefits.

我们开发的重整抽余油加氢生产溶剂油催化剂及工艺，由于具有流程简单，操作方便，反应条件温和，投资少，产品质量高等优点，已经在独山子、乌鲁木齐、天津、广州等十家炼厂广泛推广，取得了明显的经济效益和社会效益。

The technical characteristic,function mechanics and produce techniques of naphtha-lene sulfate salt series superplasticizer,the high performance water-reducing agent such as sulfamic acid series and polycarboxylic acid se-ries,and the multiple superplasticizers are discussed.

对国内外仍广泛应用的萘系高效减水剂，氨基磺酸盐系、聚羧酸系等新型高性能减水剂以及复合型高效减水剂的主要特性、作用原理和合成或生产工艺进行了介绍。

Alkylation reactions of thiophenic compounds with olefin contained in FCC naphtha on USY zeolite catalyst were investigated.

以USY分子筛催化FCC汽油中噻吩类硫化物与烯烃的烷基化反应，采用DL-2B-EE微库仑仪测定反应前后硫分布的变化，考察了USY分子筛的制备条件和烷基化反应温度对其催化性能的影响。

By undirect way, using naphtha, LPG or natural gas as raw material makes reformed gas carbureted with natural gas to get the product gas, which is completely suitable to the existing networks and utensils.

以非直供方式，用石脑油、LPG或天然气做原料生产出改质气，再用天然气增热，得到与现有管网、用户燃气具完全适应的产品气。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。