超临界状态

但过去针对CO2泡沫压裂液的实验研究大多压力较低，CO2处于气体状态，而在实际压裂工艺中对CO2泡沫压裂液来说，CO2常处于超临界状态。

Most of the experiments were finished at lower pressure , so that CO 2 was in the gas state . But , in the field , CO 2 is normally in the supercritical state .

超临界状态下炭基材料的储氢

Study on the Mechanism of Hydrogen Storage of Carbon materials under Supercritical State

超临界状态CO2对岩石中烃类物质的萃取与分离

Co_2 supercritical Extracton and separation of hydrocarbons

本论文从CO2的催化活化着手，研究在超临界状态下CO2和环氧烷烃的环加成反应。

The present thesis originates from catalytic activation of CO2 , and studies the cycloaddition of CO2 with epoxides to produce corresponding cyclic carbonates under supercritical conditions .

本文研究了三种气体CO2、He、N2在超临界状态下通过多孔陶瓷膜的渗透。

In our investigations , we studied the permeation of three supercritical fluids , CO2 , N2 , and He through porous ceramic membranes .

由于粘度、比热、介电常数、溶解能力都与密度有关，因此超临界状态下的CO2可通过调节压力来控制流体的物理和化学性质。

Since the viscosity , specific heat and solvency are related to the density , the physical and chemical properties of SCF could be controlled through the change of the pressure .

为此该文建议一种可能的热力循环：LNG在超临界状态作为闭式Brayton循环的冷源，而以工业余热作为Brayton循环的热源，并对此循环进行了详细的热力分析。

For this sake , a feasible closed Brayton cycle is proposed , in which the supercritical LNG is taken as its cold sink and an industrial waste heat as its heat source . A detailed thermodynamic analysis is given .

以市售栀子黄色素为原料，比较系统地探讨了超临界状态下萃取压力、温度、时间、CO2流量、夹带剂对栀子黄色素OD值比率的影响。

Gardenia yellow pigment that was bought from the market was taken as experimental material in the paper . The influence of extracting pressure , temperature , time , CO 2 flow , modifier on the OD ratio of the gardenia yellow pigment was first studied systematically under supercritical condition .

研究了超临界状态下涂层的温度和压力对涂层率的影响，确定了最佳的涂层条件为涂层温度为80℃、压力为22MPa，为最佳的涂层条件。

The effects of coating temperature and pressure on the coating ratio in the supercritical CO2 were studied , and optimal coating conditions at 80 ℃ and 22 MPa were explored .

超临界状态下多相催化反应的特征与研究进展

The Characteristic and Development of Heterogeneous Catalytic Reaction at Supercritical

超临界状态下正十二烷/异辛烷双元模型燃料的催化裂解反应

Catalytic Cracking of n-Dodecane / Isooctane Binary Model Fuel Under Supercritical Conditions

超临界状态下吸热碳氢燃料正十二烷的催化裂解研究

Study on the Catalytic Cracking of Endothermic Hydrocarbon Fuel n-Dodecane Under Supercritical Condition

首先在对三乙酸甘油酯与甲醇在超临界状态下的酯交换反应进行了研究，为提高对该反应的认识和下一步的研究提供参考。

Firstly , the non-catalytic transesterification of triavetin in supercritical methanol was studied .

汽轮机末级通常处在超临界状态。

The final stage is often in supercritical state .

超临界状态下液膜冷却的初步研究

Primary Research of the Liquid Film Cooling under Supercritical

锥壳在全面外压下超临界状态的实验研究

Experimental investigation on the postbuckling behaviour of conical shell subjected to overall external pressure

超临界状态下的多相催化反应

Heterogeneous catalytic reaction in supercritical state

超临界状态下合成长链烷基苯固体酸催化反应的研究

Study on Catalytic Reaction of Long Chain Alkylbenzene Synthesis over Solid Acid Catalyst in Supercritical Phase

控制超临界状态下的压力和温度，可以完成溶剂的分离与循环。

The solvent can be separated and circulated by controlling pressure or / and temperature at supercritical condition .

结果表明经多元羧酸改性的棉织物在超临界状态下染色可得到较好的染色效果。

The results showed that the cotton fabrics modified with polycarboxylic acids gave quite good dyeing results under supercritical state .

为此，近年来又开发了以固体碱和胍类有机碱为催化剂生产生物柴油的方法以及无催化的超临界状态下油脂醇解的新方法。

To solve these problems , solid base and guanidine-catalyzed transesterification methods as well as supercritical transesterification method are developed .

以油菜籽和甲醇为原料，在甲醇的超临界状态下进行原位萃取-酯交换反应制备生物柴油，研究了产物的主要组成以及反应温度、反应压力和原料比对生物柴油产率的影响。

Preparation of biodiesel from rapeseed via in-situ simultaneous extraction and transesterification in supercritical methanol was discussed in this paper .

为探讨在超临界状态下苯酚水溶液的氧化分解情况，应用了间歇式高压釜进行了实验。

Batch autoclave was applied in the experiment to probe into the oxidation condition of phenol watery solution under supercritical condition .

通过这些研究工作，研究超临界状态下苯与烷烯混合烃烷基化反应的固体酸催化剂失活规律。

Through these research , the deactivation of catalyst had been studied about alkylation of benzene with long chain alkenes in supercritical phase .

计算结果表明，Mg2+有较强的第二层水化。超临界状态下，Mg2+与Cl-间有着较强的缔合作用。

The simulation shows that Mg 2 + has a strong second hydration shell , and there is a strong association between Mg 2 + and Cl - at supercritical condition .

树脂直接水合法是以固体酸性阳离子交换树脂作催化剂，以丁烯在超临界状态下与水反应生成仲丁醇。

Resin direct hydration method is the procedure that butylenes which is in super-critical status reacts with water to produce secondary butyl alcohol with the catalyst of acid cation exchange resin .

以新鲜的核桃仁为原料，研究了在超临界状态下物料的粉碎度、萃取压力、萃取温度、萃取时间对核桃油萃取效果的影响。

Walnut meat was taken as experimental material of extraction condition . The influence of extracting pressure , temperature , time and material size on the extraction efficiencies of walnut oil was studied systematically .

这样，既可避免超临界状态下的高温和高压，又能达到较高产率和简单分离催化剂。

In the way , high temperature and pressure of the supercritical condition can be avoided and the catalysts can be easily recovered , as well as the high yield of the product can be maintained .

由于水在伪临界点附近的许多物性参数会有非常明显的变化，这种物性参数的剧烈变化会使水在超临界状态下出现一些与次临界状态下不同的流动特性。

Due to the strong variation of the thermal-physical properties of supercritical water in the vicinity of the pseudo-critical point , the behaviors of water in supercritical condition are significantly different from that in sub-critical condition .

在实验范围内，小突片堵塞比每增加1%，所造成的推力损失在063%～135%之间，对超临界状态，可认为大约增加08%。

Within the test range of the experiments , the thrust loss is between 0.65 % ~ 1.35 % per 1 % tab block ratio , and especially about 0.8 % per 1 % at supercritical flow condition .