相关实验视频

Updated: Jun 4, 2025

Enhanced Oil Recovery using a Combination of Biosurfactants
13:19

Enhanced Oil Recovery using a Combination of Biosurfactants

Published on: June 3, 2022

5.1K

在高盐度和高温度条件下提高离子表面活性剂的水性稳定性,使用SiO2纳米粒子2

Mohammed H Alyousef1, Muhammad Shahzad Kamal1,2, Mobeen Murtaza2

  • 1Department of Petroleum Engineering, King Fahd University of Petroleum & Minerals, Dhahran 34464, Saudi Arabia.

ACS omega
|December 23, 2024
PubMed
概括

二氧化纳米颗粒在高盐度条件下稳定阴离子表面活性物,用于化学增强的石油回收. 这种新的方法可以防止降水和聚合,为极端环境提供了具有成本效益的解决方案.

更多相关视频

Microbubble Fabrication of Concave-porosity PDMS Beads11:52

Microbubble Fabrication of Concave-porosity PDMS Beads

Published on: December 15, 2015

8.3K
Preparation of Silica Nanoparticles Through Microwave-assisted Acid-catalysis09:43

Preparation of Silica Nanoparticles Through Microwave-assisted Acid-catalysis

Published on: December 16, 2013

18.7K

相关概念视频

Ionic Strength: Effects on Chemical Equilibria01:19

Ionic Strength: Effects on Chemical Equilibria

The addition of an inert ionic compound increases the solubility of a sparingly soluble salt. For example, adding potassium nitrate to a saturated solution of calcium sulfate significantly enhances the solubility of calcium sulfate. Le Châtelier's principle cannot predict this shift in the equilibrium. Instead, this could be explained in terms of changes in the effective concentration of the ions in solution in the presence of added inert salt.
In this solution, the primary...
1.3K
Colloidal precipitates01:09

Colloidal precipitates

The high insolubility of some precipitates can result in an unfavorable relative supersaturation. This can lead to colloidal particles with a large surface-to-mass ratio, where adsorption is promoted. For instance, in the precipitation of silver chloride, silver ions are adsorbed on the surface of the colloidal particles, forming a primary layer. This layer attracts ions of opposite charge (such as nitrate ions), forming a diffuse secondary layer of adsorbed ions. This electric double layer...
507
Factors Affecting Dissolution: Particle Size and Effective Surface Area01:23

Factors Affecting Dissolution: Particle Size and Effective Surface Area

Dissolution kinetics, an essential aspect of oral drug delivery, is significantly influenced by the drug's particle size. According to the Noyes-Whitney dissolution model, the dissolution rate correlates directly with the drug's surface area. The larger the surface area, the higher the drug's solubility in water, leading to a faster drug dissolution rate. Reducing particle size increases the effective surface area, enhancing the dissolution process. Micronization and nanosizing are...
719
Colloids03:22

Colloids

Children at play often make suspensions such as mixtures of mud and water, flour and water, or a suspension of solid pigments in water known as tempera paint. These suspensions are heterogeneous mixtures composed of relatively large particles that are visible to the naked eye or can be seen with a magnifying glass. They are cloudy, and the suspended particles settle out after mixing. On the other hand, a solution is a homogeneous mixture in which no settling occurs and in which the dissolved...
17.3K
Solubility03:00

Solubility

Solution, Solubility, and Solubility Equilibrium
A solution is a homogeneous mixture composed of a solvent, the major component, and a solute, the minor component. The physical state of a solution—solid, liquid, or gas—is typically the same as that of the solvent. Solute concentrations are often described with qualitative terms such as dilute (of relatively low concentration) and concentrated (of relatively high concentration).
In a solution, the solute particles (molecules,...
17.3K