A kind of method of utilizing the waste paper waste residue to prepare oil fuel
(1) technical field
The present invention relates to a kind of waste paper waste residue utilization technology, especially a kind ofly use novel carbon back sulfonic acid type solid acid as catalyzer, utilize cracking technique to carry out the green process technology of waste paper waste residue liquefaction.
(2) background technology
The waste paper recycling is an effective way that solves papermaking shortage of raw materials problem, can saving resource, reduce cost, and be the important measures that China's paper industry solves the fibrous material difficulty.But, to produce a large amount of waste residues after utilizing regenerated papermaking.The waste paper waste residue that produces every day at present by statistics has more than the upper kiloton.The main component of waste residue is plastic waste by analysis, because plastic refuse is not perishable, has had a strong impact on the ecotope of the earth.Therefore, the improvement of plastic waste is very urgent.
Carbon back sulfonic acid type solid acid is a kind of solid acid catalyst of in recent years people's research and development, is to utilize biomass control charing to be prepared into solid sulfoacid, has caused in recent years people's great attention.Utilize solid acid as heterogeneous catalyst, generally have not etching apparatus, pollution is little, high temperature resistant, aftertreatment is simple, easily separated and low cost and other advantages, and obtained broad research and application in the acid catalysis field.Therefore, new and effective solid acid catalyst is used for the waste paper waste residue---the made from used plastics oil tech has great significance, and there is not yet report in the application aspect the waste paper waste residue catalytic pyrolysis.
(3) summary of the invention
The object of the invention provides a kind of novel carbon back sulfonic acid type solid acid catalyst that utilizes, and adopts cracking, distillation technique to realize waste sludge from paper mill catalyse pyrolysis liquefaction technology.
The technical solution used in the present invention is:
A kind of method of utilizing the waste paper waste residue to prepare oil fuel, described method is: will utilize the waste residue that produces behind the regenerated papermaking to dry comminution pretreatment, getting pretreated waste paper waste residue is raw material, take bamboo charcoal sulfonation solid acid as catalyzer, at 100 ~ 500 ℃ of lower scission reaction 0.5 ~ 10h, after reaction finishes, lysate is distilled processing, collect 40 ~ 330 ℃ the cut oil that acts as a fuel.Described bamboo charcoal sulfonation solid acid is that catalyzer is take the bamboo bits as raw material, carries out the pyrolysis carbonization, then sulfonation in the vitriol oil or oleum, a kind of new catalyst of preparation not being higher than under 600 ℃ the condition.
Further, described oven dry comminution pretreatment is first the waste residue that produces behind the regenerated papermaking to be dried to moisture content to be lower than 5%, then pulverizes, and obtains pretreated waste paper waste residue.
Further, after described lysate distillation is processed, collect respectively 40 ~ 190 ℃ cut as gasoline, collect 250 ~ 330 ℃ cut as diesel oil.
Further, described sulfonic acid type solid acid and the pretreated waste paper waste residue mass ratio that feeds intake is 0.01 ~ 0.3:1.
Further, described reaction is at 300 ~ 400 ℃ of lower scission reaction 1 ~ 5h.
The catalyzer that adopts during catalytic cracking reaction of the present invention belongs to the solid sulfoacid class catalyzer of biomass control charing preparation, be preferably bamboo charcoal sulfonation solid acid catalyst, " preparation of sulfonation bamboo charcoal, sign and acid catalytic properties thereof " such as preparation method's reference literature Xu Qiong, new carbon, 2011,26(2), 103-108.
Catalytic cracking reaction mechanism can be explained with the carbonium ion theory.The alkene that thermo-cracking produces long carbochain occurs first in waste sludge from paper mill, and then alkene enters and obtains H on the catalyst surface
+And the formation carbonium ion, carbonium ion fragments into first primary in the β position, secondary carbon ion, then is isomerizated into more stable tertiary carbon positive ion, and last, stable tertiary carbon positive ion is with H
+Return catalyzer, itself becomes alkene.Isomerization can make non-straight chain hydrocarbon molecule greatly increase, and the straight chain hydrocarbon molecule reduces.
Described cleavage method is catalytic pyrolysis under heating, makes the chain rupture of polyolefine macromole, and making its cracking is small molecules.C in these small molecules
5H
12~C
11H
24Deng being exactly gasoline component; C
12H
26~C
20H
42Be diesel component.Or 40~190 ℃ be the gasoline distillation stage, and 250~330 ℃ is the diesel oil distillation stage.
Further, bamboo charcoal sulfonation solid acid catalyst of the present invention prepares as follows: (1) is with the H of dry bamboo bits in mass concentration 30~80%
3PO
4After soaking 1~20h(preferred 3 ~ 20h) in the aqueous solution, use the Büchner funnel suction filtration, get filter cake a and obtain dried filter cake at 100 ℃ of lower dry 24h, then dried filter cake is carried out pyrolysis in tube furnace, namely the speed with 30 ℃/min is warming up to 110 ℃, be incubated 3 hours, naturally cool to after the room temperature with deionized water wash to neutral, obtain bamboo charcoal after the drying; Described dry bamboo bits and H
3PO
4The mass ratio of the aqueous solution is 1:3~10; (2) bamboo charcoal is added SO
3In the oleum of massfraction 50%, be warming up to 100 ℃ and constant temperature sulfonation 2h, add deionized water cooling termination reaction, filter, get filter cake b with deionized water wash to detecting till the sulfate radical-free ion with barium chloride solution, obtain bamboo charcoal sulfonation solid acid catalyst after the drying; Described bamboo charcoal and oleum mass ratio are the preferred 1:5 of 1:1~5().
Further, the method of utilizing the waste paper waste residue to prepare oil fuel of the present invention is carried out as follows: will utilize the waste residue that produces behind the regenerated papermaking to be dried to moisture content and be lower than 5%, getting pretreated waste paper waste residue mixes with mass ratio 1:0.01 ~ 0.3 with bamboo charcoal sulfonation solid acid and is placed in the scission reaction still, at 300 ~ 400 ℃ of lower scission reaction 1 ~ 5h, after reaction finishes, filtering reaction raw materials (waste residue and bamboo charcoal sulfonation solid acid are carbonized), lysate is transferred to distills processing in the still kettle, collect respectively 40 ~ 190 ℃ cut as gasoline component, collect 250 ~ 330 ℃ cut as diesel oil.
Filter cake a of the present invention and filter cake b are filter cake, and for ease of distinguishing different step acquisition filter cake difference and naming, alphabetical a and b itself do not have implication.
The waste residue that produces after waste paper (usually waste paper on adhesive tape the impurity such as the waste or used plastics are arranged) papermaking that utilizes of the present invention mainly is: can't be produced some waste materials, the impurity that utilize, such as surplus waste or used plastics out in the waste paper pulp-making process etc.
Compared with prior art, the method of utilizing solid acid catalyst to produce oil fuel of the present invention generates without solid waste, environmental friendliness, and the inventive method is suitable for the suitability for industrialized production of certain scale, be a green clearer production technology of turning waste into wealth, the application report of suitability for industrialized production is not yet arranged at present.
(4) embodiment
The present invention is described further below in conjunction with specific embodiment, but protection scope of the present invention is not limited in this:
The preparation of catalyzer
Embodiment 1
1, carbonization process: dry bamboo bits 100 are restrained in the H of mass concentration 30%
3PO
4Soaked 20 hours in the aqueous solution 1000 grams, use the Büchner funnel suction filtration, get filter cake obtains impregnation of phosphoric acid at 100 ℃ of lower dry 24h bamboo bits, then in tube furnace, carry out pyrolysis, namely the temperature rise rate with 30 ℃/min is warming up to 110 ℃, is incubated 3 hours, naturally cools to room temperature (20 ℃), products therefrom to neutral, obtains bamboo charcoal with deionized water wash after the drying.
2, sulfonation process: get above-mentioned bamboo charcoal 2 grams, add SO
3Oleum 10 grams of massfraction 50%, be warming up to 100 ℃ of constant temperature sulfonation 2 hours, add deionized water cooling termination reaction, filter, with filter cake with deionized water wash to detecting till the sulfate radical-free ion with barium chloride solution, obtain bamboo charcoal sulfonation solid acid catalyst 2.2 grams after the drying, acid content is 2.01mmol/g.
Embodiment 2
1, carbonization process: dry bamboo bits 100 are restrained in the H of mass concentration 80%
3PO
4Soaked 3 hours in the aqueous solution 300 grams, use the Büchner funnel suction filtration, get filter cake at 100 ℃ of lower dry bamboo bits that obtained impregnation of phosphoric acid in 24 hours, then in tube furnace, carry out pyrolysis, namely the temperature rise rate with 30 ℃/min is warming up to 110 ℃, is incubated 3 hours, naturally cools to room temperature, products therefrom to neutral, obtains bamboo charcoal with deionized water wash after the drying.
2, sulfonation process: get above-mentioned bamboo charcoal 2 grams, add SO
3Oleum 10 grams of massfraction 50%, be warming up to 100 ℃ of constant temperature sulfonation 2 hours, add deionized water cooling termination reaction, filter, with filter cake with deionized water wash to detecting till the sulfate radical-free ion with barium chloride solution, obtain bamboo charcoal sulfonation solid acid catalyst 2.2 grams after the drying, acid content is 2.03mmol/g.
Embodiment 3
1, carbonization process: dry bamboo bits 100 are restrained in the H of mass concentration 50%
3PO
4Soaked 10 hours in the aqueous solution 600 grams, use the Büchner funnel suction filtration, get filter cake at 100 ℃ of lower dry bamboo bits that obtained impregnation of phosphoric acid in 24 hours, then in tube furnace, carry out pyrolysis, namely the temperature rise rate with 30 ℃/min is warming up to 110 ℃, is incubated 3 hours, naturally cools to room temperature, products therefrom to neutral, obtains bamboo charcoal with deionized water wash after the drying.
2, sulfonation process: get above-mentioned bamboo charcoal 2 grams, add SO
3Oleum 10 grams of massfraction 50%, be warming up to 100 ℃ of constant temperature sulfonation 2 hours, add deionized water cooling termination reaction, filter, get filter cake with deionized water wash to detecting till the sulfate radical-free ion with barium chloride solution, obtain bamboo charcoal sulfonation solid acid catalyst 2.2 grams after the drying, acid content is 2.0mmol/g.
Embodiment 4: utilize embodiment 1 catalyzer to carry out the waste sludge from paper mill cracking
To utilize the waste residue oven dry that produces after waste paper (adhesive tape has the waste paper of the impurity such as the plastics) papermaking to make moisture be lower than 5%, pulverize, getting raw material after the pulverizing and the bamboo charcoal sulfonation solid acid catalyst of embodiment 1 preparation mixes with mass ratio 1:0.3, add fluidized bed cracking still (conventional closed reactor gets final product), after charging is complete, 300 ℃ of cracking 1 hour, after reaction finishes, the filtering reaction raw materials, lysate is squeezed into still kettle (conventional still kettle), collect respectively 40~190 ℃ of effluent liquid as gasoline, 250~330 ℃ of cuts are as diesel oil.Going out oil recovery rate is 70%.HPLC detects, and the purity of gasoline and diesel oil all reaches 99.4%.
Embodiment 5: utilize embodiment 2 catalyzer to carry out the waste sludge from paper mill cracking
To utilize the waste residue oven dry that produces after waste paper (with the embodiment 4) papermaking to make moisture low 5%, pulverize, getting raw material after the pulverizing and the bamboo charcoal sulfonation solid acid catalyst of embodiment 2 preparations mixes with mass ratio 1:0.01, add the fluidized bed cracking still, 500 ℃ of cracking 10 hours, after reaction finishes, the filtering reaction raw materials, lysate is squeezed into still kettle, collect respectively 40~190 ℃ of cuts as gasoline, 250~330 ℃ of cuts are as diesel oil.Going out oil recovery rate is 75%.HPLC detects, and the purity of gasoline and diesel oil all reaches 99.6%.
Embodiment 6: utilize embodiment 3 catalyzer to carry out the waste sludge from paper mill cracking
To utilize the waste residue oven dry that produces after waste paper (with the embodiment 4) papermaking to make moisture low 5%, pulverize, getting raw material after the pulverizing and the bamboo charcoal sulfonation solid acid catalyst of embodiment 3 preparations mixes with mass ratio 1:0.15, add the fluidized bed cracking still, 400 ℃ of cracking 5 hours, after reaction finishes, the filtering reaction raw materials, lysate is squeezed into still kettle, collect respectively 40~190 ℃ of cuts as gasoline, 250~330 ℃ of cuts are as diesel oil.Going out oil recovery rate is 73%.HPLC detects, and the purity of gasoline and diesel oil all reaches 99.3%.