Apparatus comprising anti-contaminant and non-corrosive desiccant composite having high moisture capacity
A desiccant and pollutant technology, applied in silicon compounds, lighting and heating equipment, gas treatment, etc., can solve problems affecting desiccant performance, shell corrosion, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0152] Example 1: Texture properties of desiccants
[0153] Nitrogen physisorption was used to measure the textural properties of the various desiccants by using a Quantachrome Autosorb iQ instrument at 77K. Samples were degassed under vacuum at 125°C for 4 hours prior to analysis. The results are shown in Table 1. Due to the exclusion of nitrogen molecules, the surface area and pore volume of 3A molecular sieves cannot be obtained. Silica SY290 has a 1.86cm 3 / g high pore volume, while silica gel has 741m 2 / g of the highest surface area.
[0154] Table 1. Texture properties of various desiccants
[0155]
Embodiment 2
[0156] Example 2: Wet impregnation of calcium chloride in a silica carrier
[0157] Wet impregnation was performed by mixing 1 g of silica SY290 and 0.55 g of calcium chloride. The salt was dried in an oven at 150°C for 2 hours before weighing. Afterwards, add a small amount of water (3 ) and stir well. The slurry was dried in an oven at 110 °C for several hours to obtain a dry sample. found to have a high pore volume (>1.50cm 3 / g) of silica support capable of accommodating high loadings of CaCl 2 (>50% by weight).
Embodiment 3
[0158] Example 3: Adsorption isotherms for water vapor absorption
[0159] The water vapor absorption of the desiccant was measured at 25 °C using a Quantachrome Vstar instrument. The samples were degassed in vacuo at 125 °C for 4 h before adsorbing water vapor. Figure 6 55 wt% CaCl shown 2 / SiO 2 , silica gel, bentonite and 3A molecular sieve adsorption isotherms. At relative humidity higher than 15%, the silica-supported calcium chloride desiccant has a higher adsorption rate than other desiccants.
[0160] Table 1: Water vapor absorption (mmol / g) of various desiccants at 25°C
[0161]
PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More