(Pressure, density, temperature) measurements in the critical region of methaneComprehensive measurements and correlations of the saturated liquid and vapour densities together with the vapour pressure of methane along the whole saturation curve have recently been published. (1) In completion, this ...
The critical pressure (Pc) and critical temperature (Tc) of shale gas depend on the characteristic pore size because of the importance of fluid–rock interactions in the matrix. This size dependency is neglected in highly permeable formations, where gas composition is only implemented because the ...
asurface vertical wells use the cementing process of 表面垂直的井使用用水泥涂的过程[translate] atechnology is used to increase the primitive permeability 技术用于增加原始渗透性[translate] abelow the critical desorption pressure, coalbed methane 在重要解吸附作用压力之下,煤层甲烷[translate]...
Experimental data are given for the critical temperature, pressure, and density. Although it is generally accepted that we know the most about the critical temperature and the least about the critical density, the discussion shows that it is the limiting value of the critical density that we ...
Using the Van't Hoff criterion, a simple correlation is developed among surface ignition temperature, size, pressure, and flow velocity consistent with previous work. For a given pressure and velocity, In L ∼ EsRTw, where L is the characteristic length of the hot surface, E the activation...
Phase diagram of water (H2O) on pressure-temperature (P-T) plane Many other systems, for example, ferromagnetic materials such as iron and nickel, also have critical points. The ferromagnetic critical point is also known as the Curie point. As in the case of fluids, a number of unusual ph...
Studies on the Physical Adsorption Equilibria of Gases on Porous Solids over a Wide Temperature Range Spanning the Critical Region—Adsorption on Microporo... Adsorption equilibria of nitrogen and methane on microporous ( < 2 nm) activated carbon were measured for a wide temperature range (103-298...
1) critical methane pressure 临界瓦斯压 2) gas critical parameter 瓦斯临界参量 3) gas pressure 瓦斯压力 1. Dynamic distribution ofgas pressureand emission around a diving roadway; 掘进工作面动态瓦斯压力分布及涌出规律 2. Theoretic computing methods about thegas pressurein coal seam; ...
At the critical temperature, the pressure required to convert the gas into liquid is known as the critical pressure. In the case of supercritical fluid extraction, the crude drug is extracted at a temperature and pressure above the critical temperature of the gas. The most widely used gas for...
Critical temperature, pressure and volume are obtained for a set of 135 compounds at room temperature. The size of the molecules is ranging from 10 to 30 atoms corresponding to a molecular mass of 40 to 160 daltons. The functional groups amongst the data set include alcanes, alcenes, aromati...