降低NOX污染的净化处理法

燃烧等带来的ＮＯＸ是酸雨的主要来源。高温催化燃烧可抑制ＮＯＸ的生成；选择催化 法（ＳＣＲ）为消除ＮＯＸ的成熟技术，是处理煤电厂烟道气的必要措施；烟道气循环法和低ＮＯＸ燃烧器法简单实用；在氧气存在下烃类化合物对ＮＯＸ还原法较符合工业尾气的实际条件，因而是个活跃的研究领域。     

水泥窑用无烟煤的催化燃烧

与烟煤相比,无烟煤因其燃烧活性较差,一般不被水泥回转窑、予分解窑采用。本实验以ＣａＣＯ３,ＣａＣＯ３＋ＢａＣＯ３,ＣａＣＯ３＋Ｓｒ（ＮＯ３）２,ＣａＣＯ３＋ＢａＣＯ３＋Ｓｒ（ＮＯ３）２＋Ｆｅ２Ｏ３为催化剂,对有代表性的４种无烟煤进行催化燃烧研究。借助燃烧率测定,Ｘ射线衍射及差热分析等研究方法,讨论了无烟煤催化过程中的相关影响因素。研究表明：实验所用催化剂参与了煤燃烧中的化学反应过程,对无烟煤的燃烧     

燃煤电厂脱硫脱硝研究(Ⅰ)燃煤过程SO_2和NO_X的形成机制及排放

本文阐述了煤燃烧过程ＳＯ２和ＮＯＸ的来源及形成机制,分析了影响燃烧过程ＳＯ２和ＮＯＸ排放量的有关因素,提出了正确估算ＳＯ２和ＮＯＸ排放量的近似方法,概述了减少ＳＯ和ＮＯＸ排放量的主要途径     

先进的低污染煤粉燃烧技术

本文分析了先进的煤粉燃烧技术应该具有的多种效能，即安全可靠、不结渣、燃烧稳定；具有低ＮＯ＿ｘ燃烧性能；有利于降低ＳＯ＿２的排放。论证了在我国研究开发低ＮＯ＿ｘ煤粉燃烧技术和推广应用不需耗费大量资金，却可大幅度减少ＮＯ＿ｘ的污染。还论证了先进的煤粉燃烧技术应采用炉内喷钙并附加增湿技术或排烟循环流化床脱硫技术。     

贫燃NO_X选择性催化还原技术及其研究进展

简单介绍了脱除ＮＯＸ的催化技术和最新的贫燃ＮＯＸ选择性催化还原技术。着重分析国外在开发贫燃ＮＯＸ选择性催化还原技术过程中所进行的研究工作和目前存在的问题，并指出今后的研究方向     

节能产品—循环流化床锅炉

循环流化床锅炉燃烧适应性广，燃烧效率高达９７％－９９％，负荷调节性能好，烟气中有害成份ＮＯＸ的排放符合环保要求，并可热电联产，是节能新产品，有广阔的应用前景。     

直接燃烧法治理硫化物恶臭污水的研究

在酸性条件下，用水气将恶臭物质由污水中载出，送入石油气和空气火焰中燃烧。用ＮａＯＨ溶液吸收废气中的ＳＯ２和ＣＯ２。污水经上述处理后，加入适量ＮａＣｌＯ溶液，将其残存的恶臭物质完全氧化。     

燃煤增压流化床氧化亚氮排放特性的试验研究

在小型增压流化床内研究增压流化床内Ｎ２Ｏ和Ｎ煌排放特性，研究运行条件对Ｎ２Ｏ和ＮＯ排放量的影响，包括压力、氧浓度以及床层温度对Ｎ２Ｏ和Ｎ排放量的影响。结果表明，在增压燃烧的条件下，随着床温的增加Ｎ２Ｏ的排放量减少得很快，而床温对Ｎ煌排放影响很小，这一结果与常压下的结果不同；随着氧浓度的增加，Ｎ２Ｏ和Ｎ煌排放量均增加，但Ｎ２Ｏ增幅不如ＮＯ强，ＮＯ的排放量随着压力的增高有明显的降低，在氧浓度较低的条件     

鼓泡流化床煤燃烧中燃料氮转化的研究（Ⅰ）影响因素

本文研究了各种操作因素如床温、过量氧率、煤种、脱硫、燃料粒径等对流化床煤燃烧中燃料氮转化为ＮＯ＿ｘ和Ｎ＿２Ｏ的影响，为找到减少流化床煤燃烧中氮氧化物的排放措施提供依据。     

TM型甲醛、甲醇净化催化剂的研制

甲醛、甲醇对环境的危害早已引起人们的重视，无害化技术的研究及甲醇燃料汽车尾气治理技术等已成为环境保护的热点课题，而且已经开发出一些卓有成效的控制技术。在这些控制技术中，广泛采用并且研究较多的有吸收法、吸附法、热破坏法等。热破坏法分为直接火焰燃烧和催化燃烧。国内对工业生产中产生的甲醛、甲醇等污染物一般采用吸收净化或高温焚烧处理，而国外主要采用催化燃烧法进行净化。催化技术是防止环境污染最基本的手段，也是生命过程及环境化学的重要内容，催化燃烧装置的关键是催化剂。     

Insect antifeedant properties of anthranoids from the genusVismia

Vismiones and ferruginins, representatives of a new class of lypophilic anthranoids from the genusVismia were found to inhibit feeding in larvae of species ofSpodoptera, Heliothis, and inLocusta migratoria.     

Direct observation of freeze-thaw instability of latex coatings via high pressure freezing and cryogenic SEM

Despite its industrial importance, the subject of freeze-thaw (F/T) stability of latex coatings has not been studied extensively. There is also a lack of fundamental understanding about the process and the mechanisms through which a coating becomes destabilized. High pressure (2100 bar) freezing fixes the state of water-suspended particles of polymer binder and inorganic pigments without the growth of ice crystals during freezing that produce artifacts in direct imaging scanning electron microscopy (SEM) of fracture surfaces of frozen coatings. We show that by incorporating copolymerizable functional monomers, it is possible to achieve F/T stability in polymer latexes and in low-VOC paints, as judged by the microstructures revealed by the cryogenic SEM technique. Particle coalescence as well as pigment segregation in F/T unstable systems are visualized. In order to achieve F/T stability in paints, latex particles must not flocculate and should provide protection to inorganic pigment and extender particles. Because of the unique capabilities of the cryogenic SEM, we are able to separate the effects of freezing and thawing, and study the influence of the rate of freezing and thawing on F/T stability. Destabilization can be caused by either freezing or thawing. A slow freezing process is more detrimental to F/T stability than a fast freezing process; the latter actually preserves suspension stability during freezing. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004 in Chicago, IL. Tied for first place in The John A. Gordon Best Paper Competition.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Bark and Ambrosia Beetles in the Southeastern US

In 2002–2004, we examined the flight responses of 49 species of native and exotic bark and ambrosia beetles (Coleoptera: Scolytidae and Platypodidae) to traps baited with ethanol and/or (−)-α-pinene in the southeastern US. Eight field trials were conducted in mature pine stands in Alabama, Florida, Georgia, North Carolina, and South Carolina. Funnel traps baited with ethanol lures (release rate, about 0.6 g/day at 25–28°C) were attractive to ten species of ambrosia beetles (Ambrosiodmus tachygraphus, Anisandrus sayi, Dryoxylon onoharaensum, Monarthrum mali, Xyleborinus saxesenii, Xyleborus affinis, Xyleborus ferrugineus, Xylosandrus compactus, Xylosandrus crassiusculus, and Xylosandrus germanus) and two species of bark beetles (Cryptocarenus heveae and Hypothenemus sp.). Traps baited with (−)-α-pinene lures (release rate, 2–6 g/day at 25–28°C) were attractive to five bark beetle species (Dendroctonus terebrans, Hylastes porculus, Hylastes salebrosus, Hylastes tenuis, and Ips grandicollis) and one platypodid ambrosia beetle species (Myoplatypus flavicornis). Ethanol enhanced responses of some species (Xyleborus pubescens, H. porculus, H. salebrosus, H. tenuis, and Pityophthorus cariniceps) to traps baited with (−)-α-pinene in some locations. (−)-α-Pinene interrupted the response of some ambrosia beetle species to traps baited with ethanol, but only the response of D. onoharaensum was interrupted consistently at most locations. Of 23 species of ambrosia beetles captured in our field trials, nine were exotic and accounted for 70–97% of total catches of ambrosia beetles. Our results provide support for the continued use of separate traps baited with ethanol alone and ethanol with (−)-α-pinene to detect and monitor common bark and ambrosia beetles from the southeastern region of the US.     

Novel polyurethane coating technology through glycidyl carbamate chemistry

Glycidyl carbamate chemistry combines the excellent properties of polyurethanes with the crosslinking chemistry of epoxy resins. Glycidyl carbamate functional oligomers were synthesized by the reaction of polyfunctional isocyanate oligomers and glycidol. The oligomers were formulated into coatings with several amine functional crosslinkers at varying stoichiometric ratios and cured at different temperatures. Properties such as solvent resistance, hardness, and impact resistance were dependent on the composition and cure conditions. Most coatings had an excellent combination of properties. Studies were carried out to determine the kinetics of the curing reaction of the glycidyl carbamate functional oligomers with multifunctional and model amines. Detailed kinetic analysis of the curing reactions was also undertaken. The results indicated that the glycidyl carbamate functional group is more reactive than a glycidyl ether group. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, on October 27–29, 2004, in Chicago, IL.     

Highly moisture-proof polysilsesquioxane coating prepared via facile sol-gel process

A highly moisture-proof polysilsesquioxane coating was obtained from a new bis-silylated precursor, which was synthesized from 3-aminopropyltriethoxysilane (APTES) and m-xylylene diisocyanate (m-XDI) in tetrahydrofuran (THF) and verified by ¹H MAS NMR. For direct comparison purposes, an SiO₂ coating was also prepared by the Stöber method using tetraethoxysilane (TEOS) as the reactant. Interestingly, the coating obtained from the polysilsesquioxane sol exhibited a much higher moisture resistance capability than its counterpart, which was attributed to its more compact feature between nanoparticles as characterized by N₂ absorption experiment and transmission electron microscopy (TEM). Furthermore, its high transparency of about 92% showed potential for application in the protection of optical crystals.