变换反应

负载型金基催化剂上CO氧化和水煤气变换反应性能研究

CO Oxidation and Low Temperature Water-gas Shift Reaction Over Supported Gold-base Catalysts

Shell粉煤气化制氨工艺中变换反应的分段研究

Stage Research of Shift Reaction in Ammonia Making Process by Shell Pulverized Coal Gasification

高浓度CO变换反应器工艺设计探讨

Discussion on Process Design of Shifter with High CO Concentration

CO高温变换反应动力学研究

Investigation on the kinetics of CO high temperature shift conversion

实验结果表明，CO水汽变换反应是一个结构敏感型反应。

That suggested WGR was a structure-sensitive reaction .

生物质气化气要实现高氢浓度的转化，需要通过水煤气变换反应将CO转化为H2。

High concentration hydrogen of the producer gas could be realized through water-gas shift reaction .

当金负载量为3%，水煤气变换反应温度为200℃时，CO的转化率可达995%。

CO conversion reaches 99 5 % at gold loading of 3 % and 200 ℃ .

ZnO负载纳米金催化剂上的低温水煤气变换反应

Low-Temperature Water-Gas Shift Reaction over ZnO-Supported Gold Nanoparticle Catalyst

基于RS-485总线的CO中&低温变换反应测控系统

RS-485 Based Monitoring System for CO Low-Medium Temperature Transformation Reaction

Cu/ZnO催化剂上逆向水煤气变换反应反应机理的MonteCarlo模拟

Monte Carlo simulation for mechanism of reverse watergas shift reaction over cu / zno catalyst

不同金属催化水煤气变换反应活性的DFT研究

DFT studies of activity of water gas shift reaction by several metals catalyzed

助剂对低温水煤气变换反应Au/α-Fe2O3催化剂性能的影响

Effect of promoter on the performance of low-temperature water-gas shift reaction in H_2-rich steam over supported gold catalyst

微乳法制备Au/Fe2O3水煤气变换反应催化剂Ⅰ.制备参数对催化剂活性的影响

Au / Fe_2O_3 Water-Gas Shift Catalyst Prepared by Microemulsion Method ⅰ . Effect of Synthesis Parameters on Catalyst Activity

制备溶液pH对CuO-ZnO/Al2O3催化剂前体物相及其CO水汽变换反应活性的影响

Influence of Precipitation pH on Phase Composition of Catalyst ( CuO-ZnO / Al_2O_3 ) Precursors and Activity of Catalyst in CO Water Gas Reaction

CO变换反应催化剂床层排热一般采用多段换热式，即变换炉段间换热。

Generally , the multi-zone heat-exchanging mode , heat-exchanging between zones of converter , is adopted for heat extraction of catalyst bed in CO conversion reaction .

Pt/CeO2-ZrO2催化剂上的CO变换反应本征动力学

Intrinsic kinetics of water gas shift reaction over pt / ceo_2-zro_2

Pt／CeO2-ZrO2整体催化剂上水汽变换反应催化性能的研究

Catalytic Performance of Pt / CeO_2-ZrO_2 Monolithic Catalyst for Water Gas Shift Reaction

结果表明，在催化剂的程序升温还原过程中，CuO和ZnO表面吸附的CO2可进行加氢反应和逆水汽变换反应。

The results revealed that the reactions of hydrogenation and RWGS of CO 2 proceeded on the surface of both CuO and ZnO .

结果表明，Fe－Cu－K催化剂上费托反应与水煤气变换反应同时进行，产物分布（油、蜡、烯／烷比、正构烷烃、1－烯烃等）随操作条件发生有规律的变化。

The results show that FT and water gas shift ( WGS ) reactions take place simultaneously on the catalyst surface , and product distributions vary with operation conditions .

沉淀温度对CuO/ZnO/Al2O3催化剂前驱体物相及催化水煤气变换反应活性的影响

Influence of Precipitation Temperature on Phase Composition of Precursor of CuO / ZnO / Al_2O_3 Catalyst and Its Catalytic Activity for Water Gas Shift Reaction

本文采用等温管式微分反应器，研究了常压下在NBC－1型铁系无铬催化剂上CO变换反应的本征动力学。

In this paper , the intrinsic kinetics of CO shift reaction on NBC-1 type non-chromium iron-based catalysts at ambient pressure is studied by means of isothermal tube-type differential reactor .

结果表明，采用一步法合成二甲醚如果存在水汽变换反应，CO2的转化率为负值，如果催化剂可以控制不发生水汽变换反应，CO2的转化率为零。

The results indicated that the conversion of CO2 is negative if the watergas shift reaction exist and it will be zero if the catalyst can control no watergas shift reaction to take place .

文中针对圆管式径向对称流向变换反应器三维模型，利用交替方向隐式方法（ADI）建立新的求解格式。

A new computational scheme was developed to solve a three-dimensional model of a periodic flow reversal reactor by ADI alternating direction implicit method .

低温工作的燃料电池通常利用富氢水煤气变换反应，即CO+H2O←→CO2+H2，来深度清除原料气中的CO并制取氢气。

The water gas shift ( WGS ) reaction , CO + H_2O ←→ CO_2 + H_2 is often used in the low working temperature fuel cells to clear out CO from raw gas and produce hydrogen .

结果表明，CO能占据催化剂表面部分CO2的吸附位，能抑制CO2加氢的逆水汽变换反应和促进甲醇含成，从而大大提高了CO2加氢合成甲醇的选择性和收率。

The results indicated that CO could occupy some of the CO2 adsorption sites on the catalyst surface , suppress the reverse water-gas shift reaction and promote methanol synthesis , therefore methanol selectivity with CO2 conversion increased obviously .

主要内容如下：一、利用计算流体力学（CFD）方法模拟催化剂内部反应，建立了一个耦合低温水气变换反应的多孔介质二维拟均相反应器模型。

The main content as follows : 1.Computational fluid dynamics ( CFD ) methods used to simulate interior reaction of catalyst , a two-dimensional heterogeneous reaction model coupled with low-temperature water gas shift reaction is established .

在简要介绍该反应及工艺流程的基础上，详细介绍了基于RS-485总线的一氧化碳中&低温变换反应控制系统。

On the basis of brief introduction of the reaction and process technique the RS 485 bus based control system for CO low medium temperature transformation reaction is introduced in detail .

采用动力学方程式，针对某厂Shell粉煤加压气化工艺条件，设计了动力学模型，对变换反应的分段问题，特别是第一段反应器反应深度的控制问题进行了研究和讨论；

By using dynamic equation , in allusion to Shell pulverized coal pressure gasification process conditions , dynamic model was designed , the study & discussion were made for stage problem of shift reaction , especially for control problem for reaction depth of first stage reactor ;

其中QCS-01型催化剂可用于高达9.0MPa压力的变换反应系统。

QCS-01 is one of Co-Mo oxide-based WGS reaction catalysts which can operate under high pressure up to 9 MPa .

结果表明，CO占据了部分催化剂表面起逆水汽变换反应的活性位，从而降低CO2转化率，但甲醇选择性和收率得到了提高。

The results indicate that CO may capture a small amount of active sites on the catalyst surface which bring about the reverse water gas shift reaction . Thus the conversion of CO 2 is suppressed , but the selectivity to and yield of methanol are improved .