聚乙二醇改性酚醛树脂基球形炭吸附脱硫脱氮性能研究
内容简介
6石油与天然气化工
CHEMICAL ENGINEERING OF OIL GAS
聚乙二醇改性酚醛树脂基球形炭吸附脱硫脱氮性能研究
哂⒂ⅰ背滦て截龛伞蔽逆肌�
1.西南石油大学化学化工学院2.中国石油西南油气田公司天然气研究院
2017
摘要运用扩展Stober方法合成酚醛树脂基球形炭。在合成过程中，引入不同含量和不同分子质量的聚乙二醇对所制备球形炭的结构进行改性。并以吲噪、喹啉、二苯并噻吩(DBT)作为目标吸附质，考察球形炭对模型油中含硫含氮化合物的吸附性能。结果表明，添加一定量聚乙二醇后，球形炭比表面积可提高至625m/g，微孔孔容增大为0.235m/g，对应的吸硫吸氮总量高达1.85mmol/g。然而，当聚乙二醇添加量进一步增加时，在球形炭中形成的微孔孔径增大，比表面积和微孔孔容均减小，导致吸附量显著下降。此外，引入分子质量大的聚乙二醇，制备的酚醛树脂基球形炭的微孔孔容及吸附量均较大。
关键词酚醛树脂球形炭聚乙二醇吸附脱硫脱氮
中图分类号：0613.71；TB321：TE644文献标志码：AD0I：10.3969/.issn.1007-3426.2017 04.002
Performancestudyonadsorptionremovalofsulfurandnitrogencompounds of carbon spheres derived from phenolic resin with polyethylene glycol
LuYingying',Chen Xiaoping',Ma Xiao',Wen Jie'
I. College of Chemistry and Chemical Engineering , Southaest Petroleum University , Chengdu, Sichuan, Chind 2. Natural Gas Research Institute, PetroChina Southwest Oil & Gasfield Company, Chengdu, Sichuan, China Abstract : Extended Stober method was adopted to prepare phenolic resin based carbon spheres .
polyethylene glycol (PEG) with different adding amount and molecular weight were introduced in the synthesis process to modify the structure of prepared carbon spheres samples . The model fuel containing indole, quinoline and dibenzothiophene (DBT) as target adsorbates were made . The effect of carbon spheres modification on the adsorptive performance of sulfur-containing and nitrogen. containing compound was investigated . The results showed that carbon spheres which were added proper amount of PEG had more developed microporous structure. The specific surface area of modified carbon sphere increased to 625 m /g.The micropore volume also increased to O.235 m /g, corresponding to the highest adsorptive capacity of 1.85 mmol/g for sulfur and nitrogen compounds . However, as the adding amount of PEG was further increased , larger micropores were formed in the carbon sphere, both specific surface area and micropore volume decreased, which would result in significantly decrease of adsorption capacity . Besides , PEG with larger molecular weight could lead to higher micropore volume and adsorption capacity of phenolic-resin based carbon sphere .
Key words : phenolic resin, spherical carbon , polyethylene glycol, adsorption, desulfurization and denitrogenation
基金项目：国家自然科学青年基金"过渡金属/酚醛树脂基活性炭的制备及其吸附脱硫脱氮性能研究”(21206139)。作者简介遥英英（1990一），女，硕士，主要从事多孔炭材料研究。E-mail：1434732326@qq-com
通信作者，文婕副教授，主要从事燃料吸附脱硫脱氮、天然气催化转化、炭基超级电容器电极材料等方面的研究。 E-maif?swpu-edu.cn
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