甲醇及甲醇产业链最新发展前景分析

综述了我国甲醇及甲醇产业链最新生产和消费现状,对"十三五"时期我国甲醇及甲醇产业链的市场供需进行了预测;在对国内外甲醇资源供应进行分析后,得出"未来我国甲醇供求仍有一定缺口,仍需靠进口解决国内市场需求,甲醇及甲醇产业链发展前景较好"的结论。     

国内外甲醇市场分析及展望

介绍了国内外甲醇的生产能力、产量及市场供需,对我国甲醇行业发展趋势及前景进行了预测,并提出了今后的发展建议。     

反倾销后我国甲醇行业形势分析

介绍了全球甲醇供需情况,特别是我国甲醇供需情况,着重分析了我国对部分国家的进口甲醇实施反倾销措施后,我国甲醇消费结构、主要进口来源国情况,并对市场价格与进出口价格进行对比,提出目前甲醇行业存在的问题和政策建议。     

甲醇市场的回顾与展望

甲醇是近几年来国际市场和国内市场价格变动最为活跃的重要基本有机化工原料之。本文从供需关系出发回顾了甲醇市场及价格的变化过程,介绍了国际社会对甲醇的主要下游产品之一--甲基叔丁基醚（MTBE）的环保性能评价,并对国内甲醇市场进行了分析和展望。     

甲醇与二甲醚联产的可行性分析

介绍了我国甲醇供需现状,分析了二甲醚作为燃料的优越性及市场前景,从而提出了甲醇与二甲醚联合生产的可行性。     

甲醇新兴应用产业发展提速

国内甲醇的传统消费领域如甲醛、醋酸等行业受房地产调控政策等因素影响，产量增速有所放缓。而新兴应用领域如甲醇燃料、甲醇制烯烃等行业在石油供需缺口下迅速发展。     

国内外甲醇产业及市场分析

分析了世界甲醇市场格局,并对世界主要大型甲醇装置、新增甲醇产能情况进行了介绍。着重介绍了中国甲醇产业的现状,分析了我国甲醇的生产、消费、大型装置、进出口情况等。最后对影响国内外甲醇产业及市场的因素进行了分析。     

国内苯甲醇生产及应用分析

介绍了苯甲醇的用途及主要生产工艺,并对2011年中国苯甲醇的生产、消费情况进行分析。     

世界丙烯腈供需现状及预测

介绍了世界丙烯腈的生产、供需及消费现状,对未来的生产、需求和价格走势进行了分析及预测,并对我国发展丙烯腈工业提出了建议。     

世界丁辛醇生产技术与市场分析

本文系统阐述了丁辛醇生产技术及发展趋势，介绍了国内外丁辛醇的供需及消费情况，并对今后我国丁辛醇工业发展提出了建议。     

国内外甲醇市场概况

从生产能力、装置规模、需求量、进出口量及价格等方面分析了国内外甲醇市场的概况。结果表明,目前国外甲醇生产能力已超过40Mt／a,年需求量在30Mt／a以上,发展特点是装置向廉价天然气产地转移和装置趋于大型化。国内甲醇生产能力已达6Mt／a,2003年产量为3Mt,表观消费量为4．44Mt,进口量占需求量的30％,产能和消费量分别以24．55％和15．6％的速率增长。     

SAPO-34分子筛催化剂制备及发展现状

乙烯和丙烯作为重要的化工原料,在经济发展中的需求量越来越大。在石油资源越来越匮乏的今天,甲醇制烯烃作为一种可以代替常规石油路线生产低碳烯烃的新工艺受到广泛关注。SAPO-34分子筛因为高甲醇转化率和优良烯烃选择性成为当前甲醇制烯烃工艺催化剂的研究重点。合成SAPO-34分子筛的影响因素有模板剂、合成原料和反应条件等。通过调节分子筛粒径尺寸、酸性、金属改性可以实现分子筛的性能优化。介绍了SAPO-34分子筛催化剂常用的制备方法和一些分子筛催化剂改进的专利。使用一定时间后催化剂由于积炭而失活,再生工艺目前主要采用烧焦再生。2011年,神华煤制烯烃示范工程进入工业化运行,近年陆续有多套甲醇制烯烃装置投产和在建,煤制烯烃正在改变中国聚烯烃市场格局。     

In Situ Generation of Two-Dimensional Au–Pt Core–Shell Nanoparticle Assemblies

Two-dimensional assemblies of Au–Pt bimetallic nanoparticles are generated in situ on polyethyleneimmine (PEI) silane functionalized silicon and indium tin oxide (ITO) coated glass surfaces. Atomic force microscopy (AFM), UV–Visible spectroscopy, and electrochemical measurements reveal the formation of core–shell structure with Au as core and Pt as shell. The core–shell structure is further supported by comparing with the corresponding data of Au nanoparticle assemblies. Static contact angle measurements with water show an increase in hydrophilic character due to bimetallic nanoparticle generation on different surfaces. It is further observed that these Au–Pt core–shell bimetallic nanoparticle assemblies are catalytically active towards methanol electro-oxidation, which is the key reaction for direct methanol fuel cells (DMFCs).     

Antioxidative Characteristics of Anisomeles indica Extract and Inhibitory Effect of Ovatodiolide on Melanogenesis

The purpose of the study was to investigate the antioxidant characteristics of Anisomeles indica methanol extract and the inhibitory effect of ovatodiolide on melanogenesis. In the study, the antioxidant capacities of A. indica methanol extract such as DPPH assay, ABTS radical scavenging assay, reducing capacity and metal ion chelating capacity as well as total phenolic content of the extract were investigated. In addition, the inhibitory effects of ovatodiolide on mushroom tyrosinase, B16F10 intracellular tyrosinase and melanin content were determined spectrophotometrically. Our results revealed that the antioxidant capacities of A. indica methanol extract increased in a dose-dependent pattern. The purified ovatodiolide inhibited mushroom tyrosinase activity (IC(50) = 0.253 mM), the compound also effectively suppressed intracellular tyrosinase activity (IC(50) = 0.469 mM) and decreased the amount of melanin (IC(50) = 0.435 mM) in a dose-dependent manner in B16F10 cells. Our results concluded that A. indica methanol extract displays antioxidant capacities and ovatodiolide purified from the extract inhibited melanogenesis in B16F10 cells. Hence, A. indica methanol extract and ovatodiolide could be applied as a type of dermatological whitening agent in skin care products.     

低压甲醇合成反应器述评

介绍了甲醇合成的原理,对当前国内外低压甲醇合成反应器,如ICI低压冷激式甲醇合成塔、Lurgi低压管壳式甲醇合成塔、日本东洋的MRF甲醇合成塔等进行了比较,分析了其优缺点.     

煤制甲醇联产氨改造化肥企业的科学发展观(上)--能源、环境和粮食安全战略

论述了粉煤纯氧气化生产甲醇，甲醇弛放气联产合成氨工艺路线在煤炭综合利用、环境、粮食安全等方面的基础地位；分析了谢尔粉煤气化工艺的气化原理、气化效率、煤种灵活性和环保效益；介绍了采用粉煤纯氧气化同水电解制氢，达到CO2零排放的煤制甲醇大型装置单元组合；对中国石化工业原料优化及结构调整提出了相关建议。     

Fate of methanol in an anaerobic digester

This paper mill was concerned with the anaerobic biodegradability of methanol, its by-products and the potential for gas stripping the system. A series of laboratory-scale experiments were conducted to evaluate the fate of methanol during anaerobic treatment. According to our research result, more than 99% of methanol contained in the condensate was biodegraded during anaerobic digestion. From an anaerobic digester batch test, the second order bio-degradation rate constant,k _b2 , was estimated to range from 3.97×10⁻³ m³/g·day (when only condensate was fed) to 4.06×l0⁻² m³/g·day (when condensate was fed at a proposed rate). The by-products from methanol degradation such as acetaldehyde, and methyl ethyl ketone, were degraded completely in 32 hours. Since the anaerobic treatment process has a retention time of 5 days, condensate by-products are believed to be completely biodegraded. The introduction of condensate into the existing anaerobic pretreatment process appears to improve the treatment efficiency, leading to a more stable anaerobic treatment as well as a reduced sludge generation in the aerobic wastewater treatment process due to the reduced organic loading.     

低压恒温甲醇合成系统的设计及应用

论述了低压恒温甲醇合成系统工艺流程的特点,介绍了水管式甲醇合成塔内件的结构形式和选型方案;通过生产运行数据分析,总结了低压恒温水管式甲醇合成塔的应用效果。     

Antimicrobial, Antiproliferative and Proapoptotic Activities of Extract, Fractions and Isolated Compounds from the Stem of Erythroxylum caatingae Plowman

In the study, we have examined the antitumor and antimicrobial activities of the methanol extract, the fractions, a fraction of total alkaloids and two alkaloids isolated from the stem of Erythroxylum caatingae Plowman. All test fractions, except the hexane fractions, showed antimicrobial activity on gram-positive bacteria and fungi. The acetate: methanol (95:5), acetate, chloroform and hexane fractions show the highest cytotoxicity activity against the NCI-H292, HEp-2 and K562 cell lines using MTT. The absence of hemolysis in the erythrocytes of mice was observed in these fractions and 6β-Benzoyloxy-3α-(3,4,5- trimethoxybenzoyloxy) tropane (catuabine B). Staining with Annexin V-FITC and JC-1 was used to verify the mechanism of action of the compounds of E. caatingae that showed cytotoxicity less than 30 μg/mL in leukemic cells. After 48 h of incubation, we observed that the acetate: methanol (95:5), acetate, and chloroform fractions, as well as the catuabine B, increased in the number of cells in early apoptosis, from 53.0 to 74.8%. An analysis of the potential of the mitochondrial membrane by incorporation of JC-1 showed that most cells during incubation of the acetate: methanol (95:5) and acetate fractions (63.85 and 59.2%) were stained, suggesting the involvement of an intrinsic pathway of apoptosis.     

甲醇燃料发展形势及建议

主要介绍了甲醇燃料作为替代能源的重大意义,深入分析了甲醇燃料的技术可行性、安全性和环保性,概述了我国发展甲醇燃料的客观条件,并对甲醇燃料的发展提出了建议。