甲醇羰基化

以煤为原料生产甲醇，然后经碳一化工路线生产有机化工产品，是我国煤炭资源和能源利用的发展方向之一。甲醇羰基化可以生产醋酸、醋酐、醋酸乙烯、甲酸甲酯、碳酸二甲酯等多种化工产品。本文介绍甲醇低压碳基化生产醋酸、甲酸甲酯、甲醇氧化羰化合成碳酸二甲酯的生产方法和工艺路线。     

我国甲酸甲酯合成技术新进展

综述甲醇羰基化法、甲醇脱氢法、合成气直接合成法三种甲酸甲酯 ( MF)合成技术最近几年的开发研究情况。     

甲醇脱氢制甲酸甲酯的催化剂和反应性能研究

甲醇脱氢制甲酸甲酯的催化剂和反应性能研究王乐夫，谭凤仙，张映珊，庞先 ，黄仲涛（华南理工大学化学工程系，广州５１０６４）关键词：甲醇，脱氢，甲酸甲酯，催化剂，反应性１前言甲酸甲酯是一种重要的化工产品，可用作醋酸纤维素溶剂、杀虫剂、杀菌剂等．同时由于甲?..     

甲酸甲酯合成技术新进展

综述甲醇羧基化法、甲醇脱氢法、合成气直接合成法3种甲酸甲酯（MF）合成技术最近几年的开发研究情况。     

甲酸甲酯合成与转化的催化技术

本文评述了甲酸甲酯(MF)合成与转化的催化技术,展示了从MF出发发展C_1化学的可能途径,在MF的合成方面详细地分析了从甲醇出发的羰化法、脱氢法和氧化法催化技术,简介了我们的有关研究工作。     

渣油制氨气化联产C1化工产品

从渣油气化取得 CO+H_2合成气制氨的大型装置建设上,发挥气化炉设计能力联产甲醇和甲酸甲酯,是先进的工艺技术路线。文中提出联产 C_1化工产品及其物料平衡,可供规划决策参考。     

由含CO的尾气净化合成甲酸甲酯

介绍了甲醇羰基化合成甲酸甲酯的研究进展 ,并着重指出由含CO的工业尾气与甲醇合成甲酸甲酯工艺的经济性及对环境的友好性。     

以甲醇为原料制甲酸甲酯

介绍了甲酸甲酯的性能、用途及以甲醇为原料生产甲酸甲酯的生产方法,认为甲醇羰基化合成法和甲醇脱氢法是生产甲酸甲酯的优选方法。     

低温低压液相合成甲醇和甲酸甲酯用超细铜铬氧化物催化剂——Ⅱ.Mn含量对催化剂的MF选择性的影响

采用络合物沉淀法和共沉淀法制备了CuCr1-xMxO(x=0,0.5,1)催化剂，并考察了并对合成甲醇和甲酸甲酯（MF）反应的催化活性和MF选择性，重点考察了Mn掺杂对MF选择性的影响，采用XRD，BET，SEM和TEM对催化剂进行了表征，结果表明，催化剂的MF选择性随Mn掺杂量的增加而提高，当Mn完全取代Cr后，催化剂的MF选择性甚至可高达100％，这可能主要归因于催化剂中Mn新物相的形成和催化剂呈高分散的纳米形态。     

黄磷尾气的净化与综合利用

黄磷尾气是黄磷生产过程的废气,它的组成复杂,含有多种杂质。文章对黄磷尾气的组成以及净化方案进行了探讨,提出了一条新的黄磷尾气的净化方法。净化后的黄磷尾气可以应用于合成甲醇、甲酸甲酯、二甲醚、乙二醇等基础化工产品。黄磷尾气净化后再利用生产高附加值的化工产品,既可以减少污染,又可以再生利用,是一条环境友好型、资源节约型的可持续的道路。     

低成本合成气与合成气转化新技术

现有工艺和技术对合成气原料要求较高,造成了下游产品的成本偏高。研究了低成本合成气尤其是含氮合成气的利用技术,并对合成气制二甲醚、F-T合成、低温液相甲醇合成等新技术进行了介绍,指出了利用含氮合成气等低成本合成气存在的问题,并展望了其应用前景。     

低温低压二步法合成甲醇

二步法合成甲醇,其第一步是甲醇羰基化合成甲酸甲酯;第二步是甲酸甲酯氢解合成甲醇。二步法反应的优点是使反应温度和压力降低、选择性提高、产物甲醇不含水,使提纯容易。从而低能耗、高产率地合成甲醇。     

Methyl formate as a new building block in C1 chemistry

Methyl formate has been proposed as a building block molecule in C₁ chemistry. This paper examines the potential of this concept by reviewing the processes of synthesis of the molecule and the chemical reactions that it undergoes. Methyl formate can be produced by a variety of routes from a number of feedstocks. The reaction between methanol and carbon monoxide is an efficient process, used commercially. Combination of an efficient synthesis of methyl formate and its facile decomposition allows the molecule to be used as a means for separation, storage and transport of synthesis gas. The number of reactions that convert methyl formate to other chemicals is large. In particular, the synthesis of large volume chemicals such as methanol, acetic acid and ethylene glycol deserves serious consideration. Examples are provided of applications in the chemical and energy industries involving methyl formate. The reactions involved in the synthesis and transformation of methyl formate are mostly catalytic in nature. Many currently known catalytic systems are not efficient to compete with conventional routes involving methanol or synthesis gas. Fundamental research to understand the catalytic chemistry involved is highly desirable in order to improve the performance of the catalytic systems.     

Development of a new low-temperature methanol synthesis process

A new reaction route of methanol synthesis at low temperature from CO₂-containing syngas with Cu/ZnO catalyst and the aid of alcohols has been developed in a batch and a flow-type semi-batch reactors. The use of alcohols as catalytic solvents realized methanol synthesis at 443 K with formate as an intermediate. The activity of methanol synthesis depends on types and structures of alcohols. Among all alcohols, 2-alcohol exhibited the highest activity. With the aid of 2-butanol, the one-pass 47.0% conversion and 98.9% selectivity were achieved at a mild condition, 443 K and 50 bar. The new reaction route of methanol synthesis is a practical method for near future technology.     

低温液相甲醇合成鼓泡浆态反应器数学模拟

建立了经由甲酸甲酯的低温液相甲醇合成鼓泡浆态反应器的数学模型 ,模拟了实验室鼓泡浆态反应器的行为 ,并利用模型考察了工艺参数如表观气速、催化剂浓度对反应的影响 ,对改进和提高低温液相浆态床反应器甲醇合成提供了信息 ,以便对开发低温甲醇合成工艺提供参考和指导     

An Attractive Synthetic Approach to Methyl Formate from Methanol via Methyl Nitrite

Catalytic synthesis of methyl formate has been investigated by a novel route starting from methyl nitrite in vapor phase. The acidic sites of the catalysts play a crucial role for the catalytic activity and the selectivity of formation of methyl formate. The H-Y zeolite catalyst gave higher yield and selectivity of the target product. This study provides a new approach for the synthesis of methyl formate from methanol via methyl nitrite.     

PdCu Single Atom Alloys for the Selective Oxidation of Methanol to Methyl Formate at Low Temperatures

Topics in Catalysis - The selective catalytic oxidation of methanol to methyl formate (MF) has been considered as an attractive route to produce MF, an important precursor in the chemical industry....     

甲酸甲酯合成工艺及其下游化学品的开发

综述甲醇羰基化法,甲醇脱氢法,合成气直接合成法３种甲酸甲酯（ＭＦ）合成工艺及丙酸甲酯、乙醇酸甲酯、丙烯酸甲酯、甲醇等下游化学品最近几年的开发研究情况。     

Low-Temperature Methanol Synthesis in Catalytic Systems Composed of Copper-Based Oxides and Alkali Alkoxides in Liquid Media: Effects of Reaction Variables on Catalytic Performance

Catalytic systems composed of copper-based oxides and alkali alkoxides are tested for low-temperature methanol synthesis in liquid phases, which involves carbonylation of methanol to methyl formate and consecutive hydrogenation of methyl formate to methanol. The effects of reaction variables on the catalytic performance are investigated under the conditions of 373-423K temperature and 1.5-5.0 Mpa pressure. The combined catalytic systems of copper chromite and potassium methoxide exhibit excellent activities for the production of methanol. Higher values of reaction temperature, initial pressure, catalyst loading, and H₂/CO ratio of the feed gas lead to higher methanol productivity. In particular, the reaction temperatures and the feed gas compositions strongly influence the catalytic performance. No methanol is formed when employing a feed gas containing 2% CO₂. The catalytic systems are deactivated in a short period even in a CO₂-free feed gas, due to the consumption of the alkoxide component. Alkali alkoxides are consumed through reactions with trace amounts of CO₂ and H₂O which are formed as by-products during the course of the runs. The results also suggest that the hydrogenation step of methyl formate over copper chromite is greatly accelerated in the presence of the alkali alkoxide.     

国内外甲醇合成工艺评述

介绍了近年来国内外甲醇技术的发展历史和工业化生产中的一些技术问题,通过对传统甲醇合成工艺、催化剂和反应器类型优缺点的比较,重点评述了浆态床反应器低温液相两步法合成甲醇的新工艺和尚需解决的关键问题,并对今后的研究方向作了展望。