Several patents of ZSM-5 Zeolite

Our patents on a wide range of molecular sieve, which on ZSM-5 zeolite patent projects is endless.  Today, manufacturers of ZSM-5 zeolite adsorbent Tech Shandong 齐鲁华 letter on to introduce several patents on ZSM-5 Zeolite.
 Using the direct method of ZSM-5 zeolite catalyst developed a number of new patents:
 (1) NKC-01: After the catalyst was replaced by a boron trifluoride catalyst in the synthesis of ethylene glycol ether production, yield increased by 20%, the main raw materials fell 21 percent, reduce the cost of 2,000 yuan per ton of product, and the elimination of boron trifluoride corrosion and contamination of the equipment on the environment.  State Board of Education Science and Technology Progress Award.
 (2) NKC-03 A: dehydration of ethanol to ethylene catalyst than conventional alumina catalyst low reaction temperature 100 ° C, 1-2 times higher airspeed, save energy, improve production efficiency.  National Invention Award Sidengjiang.
 (3) NKC-8912 catalyst ethylbenzene, ethanol synthesis for two ethylbenzene production, allows for two ethylbenzene selectivity of 95-98% dependent on imports for the production of long-xylene separation of adsorbent started a catalytic Synthesis of new technology, so that our "right B diphenyl," the production will achieve localization.  This catalyst has been adopted by the National Natural Science Foundation, Department of Chemistry, chaired identification.

Japan CDS-1 successfully developed a new type of molecular sieve

Recently, Xiao Bian understand a message from the Japanese National Institute of Advanced Industrial Science and Technology (AIST) synthesis of a novel activated zeolite powders CDS-1 has been successfully developed.
 It was prepared by a layered silicate, has a unique structure - by molecular stacking blocks.  According to the institute, said the film chemistry lab, CDS-1 between its silicate layers has many pores.  Research center will work processing CDS-1 into the film, mainly used for the separation agent catalyst.  Typically, the use of a structure-directing agent (Structure-directing agent) complex can be formed by hydrothermal synthesis of nanosized pore size.  These pores may be at about 420 ℃, using condensation polymerization method easily and economically be bonded together to form a silicate layer.
 This made one molecular structure but retain the layered silicate framework is without precedent.  Molecular sieves containing silicon, aluminum and oxygen atoms.  When the silica-alumina composite containing a high proportion of silicon, called a high-silica zeolite.  This kind of molecular sieve is hydrophobic and high temperature.  AIST has a molecular sieve such intellectual property rights, the Department of silicon and oxygen by a silicate system.  It is resistant to high temperature above 800 ℃ and chemical resistance.  When immersed in a solution of an acid or a base, and still retains its original structure.

Molecular sieve Introduction

Molecular sieve is a cubic lattice aluminosilicate compound having. Molecular sieve has a uniform porous structure, the diameter of its pores of uniform size, these cavities can adsorb molecules smaller diameter than the bore to the interior, and the polarity molecular sieves 3a of the molecules and the preferential adsorption of the unsaturated molecules having a capacity, which can very different degree, a different degree of saturation, and the boiling point of different molecular size to separate different molecules, which has the effect of "screening" of molecules, so called synthetic zeolite powder molecular sieves. Since the molecular sieves have a high adsorption capacity, high thermal stability, etc. The other adsorbents that are not so widely used to obtain the molecular sieve.

Dynamic dry

Definition: the weight of the adsorbent filled in a column adsorption, so that a certain concentration of the solution at a constant regeneration of molecular sieves temperature at a constant rate flow, so as measured by the adsorption capacity and adsorption capacity balance. (Liquid or gas to be treated by the downward flow of adsorbent from the adsorption is called dynamic.) Application: 1, air drying: warehouse, cargo hold, pharmaceutical, precision machinery, electronic Activated zeolite powders equipment factory, compressed air, instrument air dry. 2, the purification of industrial gas dehydration of: hydrogen, oxygen, nitrogen, chlorine, CO2, acetylene, ethylene, methane, ethane, propane, SO3, SO2, natural gas, coal gas.

Vacuum pressure swing adsorption and desorption of oxygen machine

Vacuum pressure swing adsorption and desorption of oxygen machine (referred to as VPSA oxygen), which penetrates under molecular sieves 13x atmospheric pressure conditions, using VPSA special air Selective Adsorption nitrogen,molecular sieve desiccant carbon dioxide and water and other impurities, vacuuming 4a zeolite molecular sieves under the conditions of the molecular sieve desorption, and thus the cycle to obtain high purity oxygen (90 to 94%). VPSA low energy consumption, the greater the power consumption and low equipment.

molecular sieve drying Under a certain pressure

molecular sieve drying Under a certain pressure, as the temperature decreases, the moisture content of natural gas saturated water will fall. Thus, reducing the gas temperature of the gas can  molecular sieve design  be partially condensed steam precipitation method of dewatering. This method requires the use of gas expansion get cold, and can simultaneously control the water dew point and hydrocarbon dew point, 5a molecular sieves  therefore, mostly for high-pressure gas condensate or high-pressure wet containing heavy hydrocarbons such as natural gas wellhead pressure for the use of excess occasion. If the low pressure associated gas for use in high pressure or no pressure wet gas, we need a refrigerant cooling.

The most representative adsorbent is activated carbon adsorption is quite good

Using multiple adsorption column effluent oil content according to the level of a series of sewage treatment,molecular sieve adsorbent oil content in the effluent monitoring at, if the water quality  molecular sieve adsorbent  is not up to then enter the circulatory system to continue processing until the compliance date. If oily wastewater COD, emulsion content is higher, before entering into the first reactor COD removal device and emulsion and dissolved substances such  regeneration of molecular sieves  as pretreatment removal device.
The most representative adsorbent is activated carbon adsorption performance is quite good, but the cost is relatively high, the event has been applied in the Songhua River water for adsorption of toluene. Then there zeolite, silica gel, activated aluminum, polymer adsorbent and biological adsorbents, etc.