Qingdao Silicon Creation Chemical Co., Ltd. has consistently adhered to the integration of "production, study, and research" for many years, valuing the development of new products. After years of dedicated research and development, we have created a hydrophobic silica gel specifically for vapor recovery adsorption, achieving industrial application as a substitute for traditional activated carbon, and making breakthroughs in environmental protection and safety technology.
Silica gel is a highly active inorganic silicon adsorption material with unique properties such as being insoluble in water and any solvent, non-toxic, and odorless. It has a stable chemical nature at various temperatures and does not react with any substances except strong alkalis. Due to different processing techniques, it produces varying microporous structures, making it irreplaceable in terms of low adsorption heat, stable chemical nature, safety, environmental protection, high mechanical strength, and long service life compared to activated carbon adsorbents.
[Research and Development Approach and Practice]
The traditional activated carbon adsorption process is widely used in the four major (condensation, adsorption, absorption, and membrane) processes for effective oil vapor recovery. However, due to the high adsorption heat of activated carbon and its propensity to cause fires or explosions, it severely affects safe use. Consequently, countries like Japan have strictly prohibited its use, opting instead for high-performance silica gel.
Our country's research and development of oil vapor recovery silica gel started late, but with the economic development and the improvement of people's living standards, the demand for environmental safety has become increasingly higher. Our company adheres to the environmentally friendly and safe research and development approach of using "physical methods" and avoiding "chemical synthesis," ensuring the environmental and safety of the entire process from raw materials to finished products.
1. Adhere to the "Practice Standard," changing the hydrophobic index to oleophilic, and requiring the product to be soaked in gasoline and oil vapor for an extended period without any noticeable cracking or breaking.
2. Purified products, process adjustments, mixed use of carbon and glue, complementary advantages, reduced temperature rise, ensured safety.
3. Simplify the process, reduce costs, extend service life, and the price is less than 1/3 of imported versions.
Technical Features
This product features a weakly polar surface, easily adsorbs hydrocarbons, and can be fully desorbed under vacuum conditions. It has a long service life; it is non-flammable, ensuring the safety of oil depots and gas stations; it boasts high oil vapor recovery efficiency and low emissions.
Usage:
Our specialized silicone adsorbent for vapor recovery is a product developed in recent years through our in-depth collaboration with renowned domestic universities. It replaces the industrial application of traditional activated carbon and fills the gap in China's vapor recovery silicone market. It is mainly used in vapor recovery systems and various gas recovery applications.
Technical Specifications
【Specs】2-4mm, 2-5mm
【Packaging】25kg bags or as per customer's request
[Test Report]
1. After pretreatment with silicone, our new process employs high-purity water instead of solvents for reaction at a specific temperature. This results in silicone with higher stability in terms of pore volume and specific surface area compared to that made with solvents, while also reducing production costs.
2. Take a certain amount of hydrophobic silica, place it in a sealed container, and perform oil and gas adsorption. The adsorption rate reaches 29-34%.
3. Take a certain amount of hydrophobic silicone and place it in an environment with RH=90% for hydrophobicity testing, achieving a hydrophobicity of 73.6%.
4. The hydrophobic silica gel treated with adsorbed oil and gas undergoes a vacuum desorption test, achieving a desorption rate of over 74%.
