【摘要】：油品從原油開采到成品油銷售的輸送、加工、儲(chǔ)存等過程中,由于油品的揮發(fā)性以及開采、冶煉工藝和設(shè)備的不完善,造成了油品的蒸發(fā)損耗,對環(huán)境、人類的健康都有巨大危害。目前廣泛采用吸附技術(shù)去除油氣廢氣,活性炭是主要的吸附材料,但在實(shí)際工業(yè)吸附油氣時(shí)存在疏水性能差、孔道易堵塞、脫附困難、易燃等缺點(diǎn),而高分子樹脂以其大比表面積、大孔容、疏水性好、脫附性能佳等優(yōu)點(diǎn),可以有效彌補(bǔ)活性炭在吸附上的不足。本文首先選用三種商用高分子樹脂DA-1、DA-2、D8系列樹脂,系統(tǒng)考察了樹脂對油氣及其主要成分的吸附-脫附性能,同時(shí)研究了樹脂種類、吸附溫度、吸附質(zhì)濃度、水汽對高分子樹脂吸附油氣性能的影響。實(shí)驗(yàn)結(jié)果表明,高比表面積、大孔容的DA-1及DA-2樹脂對油氣及其主要成分有較好的吸附性能,在油氣濃度為3141 mg/m3時(shí)飽和吸附量分別為0.1383 g/g、0.0733 g/g。由于物理吸附是放熱反應(yīng),隨著吸附溫度的提高,樹脂的吸附量隨之減少;三種高分子樹脂的吸附量均隨吸附質(zhì)的濃度的升高而升高;同時(shí)與D8樹脂相比,孔徑較小的DA-1、DA-2樹脂的疏水性能較好,水汽對其吸附性能影響不大。論文進(jìn)一步研究了三種高分子樹脂對油氣及主要成分正己烷的脫附性能,考察不同的脫附方法、脫附溫度對脫附效率的影響,以及高分子樹脂的重復(fù)吸-脫附實(shí)驗(yàn),來探究樹脂的回收再利用情況。實(shí)驗(yàn)結(jié)果表明,真空脫附法明顯優(yōu)于熱脫附法,同時(shí)孔徑較大的DA-2樹脂脫附率明顯優(yōu)于DA-1樹脂。隨著脫附溫度的升高,兩種樹脂均可以完全脫附,其中真空脫附效率可以在90℃時(shí)迅速達(dá)到100%。兩種樹脂在進(jìn)行四次重復(fù)吸脫附實(shí)驗(yàn)后,仍能表現(xiàn)出較好的吸附性能,因此可以較好地進(jìn)行回收再利用。
[Abstract]:In the course of oil production from crude oil production to the transportation, processing and storage of refined oil products, due to the volatility of oil products and the imperfection of smelting technology and equipment, the evaporation loss of oil products is caused to the environment. Human health is a great hazard. At present, adsorption technology is widely used to remove oil and gas waste gas. Activated carbon is the main adsorption material, but it has some disadvantages such as poor hydrophobic performance, easy blockage, difficult desorption, flammability and so on. Because of its large specific surface area, large pore volume, good hydrophobicity and good desorption performance, polymer resin can effectively compensate for the lack of activated carbon in adsorption. In this paper, the adsorption-desorption properties of three kinds of commercial macromolecular resins DA-1C DA-2D8 are investigated systematically, and the kinds of resins, adsorption temperature and adsorbate concentration are also studied. Effect of Water Vapor on adsorption of Oil and Gas by Polymer Resin. The experimental results show that DA-1 and DA-2 resins with high specific surface area and large pore volume have good adsorption properties for oil and gas and their main components. The saturated adsorption capacity of DA-1 and DA-2 resins is 0.1383 g / g, 0.0733 g / g when the concentration of oil and gas is 3141 mg/m3, respectively. As the physical adsorption is an exothermic reaction, the adsorption capacity of the resin decreases with the increase of adsorption temperature, and the adsorption capacity of the three macromolecule resins increases with the increase of the concentration of adsorbate. At the same time, compared with the D8 resin, the adsorption capacity of the resin decreases with the increase of the adsorption temperature. The hydrophobic properties of DA-1 / DA-2 resin with small pore size are better, and the adsorption properties of DA-1 / DA-2 resin are not affected by water vapor. The desorption properties of three kinds of polymer resins on oil and gas and n-hexane were further studied. The different desorption methods, the influence of desorption temperature on desorption efficiency, and the experiment of repeated sorption-desorption of polymer resin were investigated. To explore the recovery and reuse of resin. The experimental results show that the vacuum desorption method is obviously superior to the thermal desorption method, and the desorption rate of DA-2 resin with larger pore size is obviously better than that of DA-1 resin. With the increase of desorption temperature, both resins can be desorbed completely, and the vacuum desorption efficiency can reach 100% at 90 鈩，

本文編號(hào)：2119725