3A Zeolite Molecular Sieve for Adsorbent and Desiccant of Unsaturated Hydrocarbon

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Production Introduction

It can adsorb molecules smaller than its pore diameter into the interior of the hole, while repels molecules larger than the pore diameter out of its hole, playing the role of screening molecules.

Compared with other types of desiccants or adsorbents, zeolite molecular sieve still has higher adsorption capacity under low partial pressure and high temperature conditions, and the adsorption rate of polar molecules such as water is also higher at low partial pressure or concentration.

Zeolite molecular sieves are widely used in air purifiers of cryogenic air separation units in the adsorption function. In traditional cryogenic air separation, before the raw air enters the cryogenic separation process, moisture, small molecular impurities, carbon dioxide, etc. in the gas need to be filled. The air purification system of it is used to remove clean air, and then through various regeneration methods, the service life of molecular sieve is prolonged, energy saving, consumption reduction and cost reduction.

Specification:

Item	Unit	Specification
Sphere Size	mm	1.8-2.5	3.0-5.0
Bulk Density	g/ml	≥0.67	≥0.65
Qualified Size	%	≥98	≥98
Static Absorptive Water	%	≥26.5	≥26.5
CO2 Absorptive Capacity	ml/g	≥17.5	≥17.5
Crush Resistance	N	≥35	≥80
Abrasion Loss	wt%	≤0.2	≤0.2
Packing Moisture Content	%	≤1.5	≤1.5

Regeneration:

It can be regenerated by either heating in the case of thermal swing processes; or by lowering the pressure in the case of pressure swing processes. To remove moisture from a molecular sieve, a temperature of 250-300°C is required. A properly regenerated molecular sieve can give moisture dew points below -100°C, or mercaptan or CO2 levels below 2 ppmv. The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process.

Application

①　Gas purification in the air separation device to remove water and carbon dioxide.

②　Drying and desulfurization of natural gas, liquefied petroleum gas and liquid hydrocarbons.

③　General gas deep drying.

Also includes: removal of hydrocarbons; drying and purification of ammonia synthesis gas; desulfurization and deodorization of aerosol propellants; de-CO2 from cracked gas; catalyst carrier; co-adsorption of water and carbon dioxide; co-adsorption of water and hydrogen sulfide gas, etc...

Lab Test

Package

①　25 kg kraft bag with plastic double lining;

②　25kg carton wish foil;

③　125 kg/140 kg/180 kg paper drum;

④　125 kg/140 kg/180 kg steel drum;

⑤　Tog bag;

⑥　Customer's request.

We have been engaged in the 3A Zeolite Molecular Sieve for Adsorbent and Desiccant of Unsaturated Hydrocarbon industry for a long time, and has accumulated a lot of service experience. With strong R&D strength and global strategic layout, we currently have many customers around the world. Your demand is also our demand, your satisfaction is our service standard, we will never live up to our customers' trust.

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