5A molecular sieve with high adsorption rate
A technology of adsorption rate and molecular sieve, applied in the field of molecular sieve, to achieve the effect of reducing crystal particles, shortening adsorption period and accelerating adsorption rate
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[0023] The preparation method of the above-mentioned molecular sieve combines microporous grain refinement with crystal surface modification technology, greatly reduces crystal particles and at the same time minimizes or avoids damage to the crystal structure of microporous grains, thereby successfully realizing The acceleration of the adsorption rate brought about by particle refinement is maximized.
[0024] The preparation method of the high 5A molecular sieve of adsorption rate, the steps are as follows:
[0025] (1) Order the particle size, total specific surface area and micropore specific surface area of 5A molecular sieve;
[0026] (2) Add channel proppant in 5A molecular sieve, the addition amount is 15-30 %; Pore channel proppant can be dehydrated alcohol or the small molecular organic reagent of molecular weight between 40-45, and this reagent does not send any reaction with molecular sieve;
[0027] (3) Disperse the 5A molecular sieve into the dispersant to mak...
Embodiment 1
[0031] Embodiment 1: (do not add channel proppant)
[0032] The preparation method of the high 5A molecular sieve of adsorption rate, the steps are as follows:
[0033] (1) The 5A molecular sieve purchased from Huiying Chemical Industry (Quanzhou) Co., Ltd. has an average particle size of 5.0 μm and a total specific surface area of 640.6m 2 / g, the micropore specific surface area is 555.7m 2 / g;
[0034] (2) 272g 5A molecular sieve is dispersed in 228g distilled water, and its solid content is 42％， Stir well;
[0035] (3) The particle size of the grinding media is 1mm;
[0036] (4) Set the parameters of the grinding machine: the number of revolutions is 3000 revolutions / min, and the time is 2 minutes;
[0037] (5) In this embodiment, Mini Motormill 250 produced by Eiger Machinery Inc. is used, which is marked as 5A-1 after treatment, and the molecular sieve particle size, total specific surface area and micropore specific surface area are measured, and the relative ads...
Embodiment 2
[0041] Embodiment 2: (do not add channel proppant)
[0042] The preparation method of the high 5A molecular sieve of adsorption rate, the steps are as follows:
[0043] (1) 5A molecular sieve was purchased from the industrial supplier Huiying Chemical Industry (Quanzhou) Co., Ltd. The particle size of the molecular sieve is 5.0μm, and the total specific surface area is 640.6m 2 / g, the micropore specific surface area is 555.7m 2 / g;
[0044] (2) 291g 5A molecular sieve is dispersed in 209g distilled water, and its solid content is 45％， Stir well;
[0045] (3) The particle size of the grinding media is 1mm;
[0046] (4) Grinding machine parameters are set: shear treatment for 2 min at a speed of 3600 rpm;
[0047] (5) Then treat it with Mini Motormill 250 produced by Eiger Machinery Inc. and mark it as 5A-2, measure the molecular sieve particle size, total specific surface area and micropore specific surface area, and calculate the relative adsorption speed, the data are ...
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