CN104888698A - Adsorbent capable of adsorbing gasoline steam - Google Patents

Abstract

The invention discloses an adsorbent capable of adsorbing gasoline steam. The adsorbent is characterized by being prepared by the following raw materials, by weight part: 8-15 of calcium carbonate fiber, 20-40 of tetrabutyl titanate, 3-5 of silica sol, 6-8 of calcium aluminate, 60-80 of volcanic rock, 6-9 of PA6 nylon powder, 3-4 of gelatin, 1-3 of ammonium bicarbonate, 5-7 of polystyrene microsphere, 4-5 of gypsum powder, and a proper amount of deionized water. Polystyrene microsphere and gypsum powder added in the adsorbent have a synergistic effect, and are good in adsorption effect on gasoline steam and large in adsorption capacity, so that pollution of overflowed steam to the environment is greatly reduced. The prepared adsorbent has excellent adsorption effect, is good in adsorption efficiency, easy to remove, good in reuse effect, and low in cost, is free of pollution, and is suitable for industrial production.

Description

A kind of can the adsorbent of absorbing gasoline steam

Technical field

the present invention relates to a kind of absorbent fields, be specifically related to a kind of can the adsorbent and preparation method thereof of absorbing gasoline steam.

Background technology

The pollution of automobile to environment becomes urban air first pollution source, and the pollution of automobile to air is mainly derived from the evaporation of vehicle exhaust and fuel oil-gas, and wherein tail gas pollution accounts for 70%, and EVAP thing pollutes and accounts for 30%.Generally at present on automobile, use charcoal absorption gasoline vapor, because charcoal absorption is easily saturated, change speed fast, carry out after-treatment not easily, recycle weak effect, so be badly in need of a kind of good separating effect, adsorption capacity is large, recycles effective adsorbent.

Volcanic rock quality is hard as lithotome, coating surface honeycomb porous, specific area is large, and soak change without exception in water, water proofing property is splendid, fire prevention, weather resisteant is good, can prevent the deterioration caused because of ultraviolet, have nontoxic, tasteless, intensity is high, heat insulation, acid and alkali-resistance, stain resistance, corrosion-resistant, resistance toly to go mouldy, and the advantage such as pollution-free, "dead", as sorbent material, there is good application prospect.Although at present adsorption rate and adsorption capacity are improved, after absorption adsorbent and solvent not easily separated, the present invention adds magnetic material in sorbent material makes adsorbent can be good at being separated, and expands the range of application of adsorbent.

Summary of the invention

The object of this invention is to provide a kind of can the adsorbent and preparation method thereof of absorbing gasoline steam.

In order to realize object of the present invention, the present invention is by following scheme implementation:

Can the adsorbent of absorbing gasoline steam, be made up of the raw material of following weight portion: calcium carbonate fiber 8-15, butyl titanate 20-40, Ludox 3-5, calcium aluminate 6-8, volcanic rock 60-80, PA6 nylon powder 6-9, gelatin 3-4, carbonic hydroammonium 1-3, polystyrene microsphere 5-7, land plaster 4-5, deionized water are appropriate;

Of the present invention a kind of can the adsorbent of absorbing gasoline steam, be made up of following concrete steps:

(1) absolute ethyl alcohol of butyl titanate and 3-4 times amount is mixed, magnetic agitation 1h, magnetic agitation 2h is continued again by being added in above-mentioned solution after short for calcium carbonate fiber cutting, slow dropping deionized water, continue after gel to be formed to stir 0.5-1 hour, then to be added in baking oven that under 80 ° of C, to dry grinding for subsequent use;

(2) spend deionized water after volcanic rock being soaked 12h in concentrated sulfuric acid and grind to form fine powder to neutral oven dry, then mix with gelatin, PA6 nylon powder, in Muffle furnace, under 240-255 ° of C, calcine 0.5-1h, take out after cooling;

(3) by the product of step (1) gained and except calcium aluminate all the other remaining material mixing and stirring, employing pressure is that mixture is pressed into bead by the ball press of 10t-20t, selects particle size for subsequent use as ball core at the bead of 5-15mm scope after screening;

(4) product of step (2) gained and calcium aluminate are mixed, the bead of step (3) gained is placed in disc balling machine as kernel, add above-mentioned volcanic rock mixture, rolling pelletizing, volcanic rock is covered on ball core and forms shell, the composite sphere of gained is calcined under 550-600 ° of C 2-4h and become porous complex microsphere.

Advantage of the present invention is: the present invention adopts calcium carbonate fiber to mix with TiO 2 sol, enhance the intensity of TiO 2 sol, bactericidal properties, the performance of the aspect such as adsorbance and heat resistance, adopt gelatin and PA6 to be added to define skeleton when calcining in volcanic rock and make Adhesion enhancement between volcanic rock, not easily be scattered when making adsorbent dry linting, wearability strengthens, extend service life, and double-layer porous road adsorption microspheres made by adsorbent by the present invention, enhance adsorption capacity and adsorption rate, to tiny field trash, there is good adsorption effect, expand adsorption range, the polystyrene microsphere added and land plaster synergy, the vapor sorption of gasoline is made good use of, adsorption capacity is large, greatly reduce the pollution of steam spilling to environment, adsorbent prepared by the present invention has good adsorption effect, adsorption efficiency is high, and easily remove, reuse effective, cost is low, pollution-free, be applicable to suitability for industrialized production.

Detailed description of the invention

Below by instantiation, the present invention is described in detail.

Can the adsorbent of absorbing gasoline steam, be made up of the raw material of following weight portion (kilogram): calcium carbonate fiber 12, butyl titanate 34, Ludox 4, calcium aluminate 7, volcanic rock 76, PA6 nylon powder 8, gelatin 3, carbonic hydroammonium 2, polystyrene microsphere 6, land plaster 5, deionized water are appropriate;

Of the present invention a kind of can the adsorbent of absorbing gasoline steam, be made up of following concrete steps:

(1) absolute ethyl alcohol of butyl titanate and 4 times amount is mixed, magnetic agitation 1h, continuing magnetic agitation 2h again by being added in above-mentioned solution after short for calcium carbonate fiber cutting, slowly dripping deionized water, continue stirring after gel to be formed 0.6 hour, then to be added in baking oven that under 80 ° of C, to dry grinding for subsequent use;

(2) spend deionized water after volcanic rock being soaked 12h in concentrated sulfuric acid and grind to form fine powder to neutral oven dry, then mix with gelatin, PA6 nylon powder, in Muffle furnace, under 250 ° of C, calcine 1h, take out after cooling;

(3) by the product of step (1) gained and except calcium aluminate all the other remaining material mixing and stirring, adopt pressure to be that mixture is pressed into bead by the ball press of 20t, select particle size after screening for subsequent use as ball core at the bead of 5-15mm scope;

(4) product of step (2) gained and calcium aluminate are mixed, the bead of step (3) gained is placed in disc balling machine as kernel, add above-mentioned volcanic rock mixture, rolling pelletizing, volcanic rock is covered on ball core and forms shell, the composite sphere of gained is calcined under 550 ° of C 2-4h and become porous complex microsphere.

Example 0.5g adsorbent and mass concentration are that the methylene blue solution 500ml of 100mg/l reacts, and test index is as follows:

Clearance (%): 96.1;

Adsorbance (mg/g): 66.7;

Clearance (repeating 6 times, %): 63.3;

Compression strength (N/): 24;

Rate of wear (%): 1.1;

Gasoline vapor adsorption rate (%): 37.

Claims (2)

1. one kind can the adsorbent of absorbing gasoline steam, it is characterized in that, be made up of the raw material of following weight portion: calcium carbonate fiber 8-15, butyl titanate 20-40, Ludox 3-5, calcium aluminate 6-8, volcanic rock 60-80, PA6 nylon powder 6-9, gelatin 3-4, carbonic hydroammonium 1-3, polystyrene microsphere 5-7, land plaster 4-5, deionized water are appropriate.

2. a kind of according to claim 1 can the adsorbent of absorbing gasoline steam, it is characterized in that, be made up of following concrete steps:

(1) absolute ethyl alcohol of butyl titanate and 3-4 times amount is mixed, magnetic agitation 1h, magnetic agitation 2h is continued again by being added in above-mentioned solution after short for calcium carbonate fiber cutting, slow dropping deionized water, continue after gel to be formed to stir 0.5-1 hour, then to be added in baking oven that under 80 ° of C, to dry grinding for subsequent use;

(2) spend deionized water after volcanic rock being soaked 12h in concentrated sulfuric acid and grind to form fine powder to neutral oven dry, then mix with gelatin, PA6 nylon powder, in Muffle furnace, under 240-255 ° of C, calcine 0.5-1h, take out after cooling;

(3) by the product of step (1) gained and except calcium aluminate all the other remaining material mixing and stirring, employing pressure is that mixture is pressed into bead by the ball press of 10t-20t, selects particle size for subsequent use as ball core at the bead of 5-15mm scope after screening;

(4) product of step (2) gained and calcium aluminate are mixed, the bead of step (3) gained is placed in disc balling machine as kernel, add above-mentioned volcanic rock mixture, rolling pelletizing, volcanic rock is covered on ball core and forms shell, the composite sphere of gained is calcined under 550-600 ° of C 2-4h and become porous complex microsphere.