裂解反应
- 名Pyrolysis reaction;lytic response
-
吡啶吸附-脱附催化剂的活性结果说明沸石对正十六烷裂解反应是B酸催化。
The results of the catalytic activities of pyridine adsorption and desorption show that the n-hexadecane cracking is catalyzed with B acid .
-
两种转化催化剂上CH4裂解反应考察
Study on ch_4 pyrolysis reaction catalyzed with two types of catalysts
-
Al2O3催化下的取代β-羟基胺Schiff碱衍生物的C&C键裂解反应
The Al_2O_3 Catalyzed C & C Bond Cleavage of β - amino Alcohol Schiff Base Derivatives
-
MTBE裂解反应器列管管径放大的小试研究
The scale up for tube diameter of MTBE cracking reactor
-
本文对DNA光复活过程中的光解酶对Pyr<>Pyr的识别和光催化Pyr<>Pyr裂解反应进行了综述,介绍了DNA光解酶的结构、DNA的主要UV光化学产物。
In this paper , binding and splitting mechanism of pyrimidine dimer by DNA photolyase were reviewed . The structure of DNA photolyases and the UV induced DNA photoproducts were introduced .
-
本文致力于新型大环多胺金属配合物的设计合成及其催化DNA裂解反应的研究,具有一定的理论意义和应用价值。
In this thesis , novel macrocyclic polyamines and their zinc complexes have been designed and synthesized . Some useful results have been obtained from the study on their catalytic efficiency ir DNA cleavage .
-
手性多环化合物的Beckmann裂解反应研究
Study on Beckmann Fragmentation of Chiral Multi-ring Compounds
-
本文通过研究反应温度、反应时间及催化剂用量对反应进程的影响,对磷钨杂多酸(HPA)催化松香裂解反应及反应动力学进行了研究。
The cracking reaction of rosin catalyzed by phosphatic and tungstenic heteropoly acids is studied , in discussing the factors affecting the reaction in detail .
-
其最佳工艺条件是,预处理温度为正常的裂解反应温度,预处理时间2~4h,预处理剂的质量分数为400~500μg/g;
The optimum pretreating conditions were : normal pyrolysis temperature , 2 4h , pretreating agent dosage 400 500 μ g / g.
-
Reformatsky-环化反应合成取代四氢呋喃手性多环化合物的Beckmann裂解反应研究
A Tandem Reformatsky-Cyclization Reaction to Synthesize Substituted Tetrahydrofurans ; Study on Beckmann Fragmentation of Chiral Multi-ring Compounds
-
针对裂解反应釜具有容积滞后大的动态特性,本文相对应地引入了积分分离PID控制算法和抗积分饱和PID控制算法。
According to the fact that the temperature control of cracking reaction has big volume lag and dynamic feature , integral separation PID control algorithm and the anti-windup PID control algorithm are correspondingly introduced in this paper .
-
综述了应用于甲醇裂解反应的非贵金属催化剂,如Cu、Ni等,包括它们的催化活性、选择性、稳定性,并对部分催化剂的制备方法、产物分析、反应动力学以及催化机理进行了概述。
In this article , base metal catalysts used in the reaction , e.g. Cu , Ni , including their preparation method , product analysis , catalytic activity / selectivity , reaction dynamics and mechanism are reviewed .
-
综合反应产物分布和NH3-TPD结果,认为引入第二改性物可适当调节催化剂的表面酸性质,以及脱氢能力,可以适当抑制氢转移反应和裂解反应,从而改善了催化剂的芳构化性能。
Comparing the product distribution with the NH 3-TPD results , it can be considered that the second modifiers adjusted the acidity and dehydrogenation property of the catalyst .
-
主要采用Gaussian03程序中的密度泛函理论(DFT),在UB3LYP/631G水平上对碳材料用碳源化合物乙苯的初期热裂解反应机理进行了研究。
In this paper , the pyrolysis mechanism of the carbon matrix precursor ethylbenzene used for carbon / carbon material was investigated by density functional theory at the UB3LYP / 6-31G level of Gaussian 03 package .
-
利用原位XPS和TPD-MS技术研究了Cu-Ni/Zn催化剂在甲醇裂解反应中的机理和活性中心。
In situ XPS and TPD MS techniques were used to study the reaction mechanism and the active center of Cu Ni / Zn catalyst for methanol decomposition .
-
本文介绍准平衡理论在质谱学中的应用,并以丙烷离子C3H8~+裂解反应为例,说明用准平衡理论计算质谱的理论依据及方法。
This article introduces the application of the quasi-equilibrium theory to mass spectrometry , and exemplifies the decomposition of propane ion ( C_3H_8 ~ + ) to explain the theoretical ' basis , and the method using quasi-equilibrium theory for calculation of mass spectrometry .
-
在523K-598K范围内得到了正庚烷的异构化反应和裂解反应的表观活化能分别49.3kJ/mol和60.6kJ/mol;
In the reaction temperature ranged from 523 to 598 K , the apparent activation energy for the n-heptane isomerization and the cracking of n-heptane is 49.3 kJ / mol and 60.6 kJ / mol , respectively ;
-
于热裂解反应相比,低温下正癸烷的GOC反应更适合制备液体组分,同时联产低碳烯烃。
At lower temperature , GOC process of decane is more suitable for producing liquid compounds , as well as low alkenes .
-
实验发现对甲醇低温裂解反应,WO3负载的金属催化剂没有提高金属催化剂的催化活性,载体WO3对甲醇低温裂解反应没有促进作用;
Metal catalysts supported on WO3 prepared via co-precipitation don 't increase the conversion of methanol decomposition reaction in contrast to metal catalysts without WO3 via co-precipitation .
-
本文在840~950K范围内应用单脉冲化学激波管测定环氧氯丙烷的裂解反应动力学。
The chemical kinetics for the pyrolysis of epichlorohydrin was studied by single pulse shock tube in 840-950K .
-
添加碳酸钾后,H2产率增幅较小,CO、CH4及其它气态烃产率基本不变,表明碳酸钾对烃类裂解反应无明显催化作用。
Slightly increase of hydrogen yield was found with potassium carbonate , but CO , CH_4 and other alkanes yields kept constant at the same time . It was obvious that the potassium carbonate had not clear catalytic effect on cracking reaction of heavy alkanes .
-
一些丹参醌类二萜醌在电子轰击下的裂解反应&关于一种不常见的(M-O)碎片离子的观察
Studies on the fragmentation of diterpene quinones related to tanshinone under electron impact & the observation of an unusual ( m-o ) fragment ion
-
MgAPO-11分子筛的合成、表征及其催化正己烷裂解反应的动力学研究
Synthesis and Characterization of Magnesium-Substituted Aluminophosphate Molecular Sieves ( MgAPO-11 ) and Their Kinetic Study of Catalytic Cracking of n-Hexane
-
正庚烷加氢反应作为FT油异构、裂解反应的模型反应,用此反应来选择性控制异对分子筛负载贵金属催化剂上正庚烷加氢异构的研究构化反应和裂解反应。
Consequently , the octane number of the gasoline will be increased at the same time . As a model reaction of the isomerization reactions and the cracking reactions of the FT oil , the n-C7H | 6 hydrogenation reaction is used to selectively control such kind of reactions .
-
发现乙苯的热裂解反应始于973K,热、动力学支持的主反应路径均为生成苯乙烯的反应路径,该路径的活化能为305.04kJ/mol。
The computation results showed that ethylbenzene began to pyrolyze at 973 K and the main product was styrene . The activation energy of the major reaction path was 305.04 kJ / mol.
-
乙醇氧化经裂解反应、脱氢反应最终形成支链反应,乙氧基C2H5O的三种同分异构体在链分支中决定了链分支的进行方向。
The unimolecular decomposition and dehydrogenation of ethanol initiate the branched chain reaction , and the3 isomers of radical C2H5O determine the direction of the reaction chain branching .
-
考虑了对苯二甲酸乙二酯(BHET)缩聚过程的主反应、逆反应及热裂解反应,得到一个动力学方程式。
With the consideration of all the reactions involved in the polyesterification of BHET ( bis - β - hydroxyethyl terepliathalate ) such as the primary forward polycondensation reaction , its reverse reaction and the cracking reaction , a kinetic equation was derived .
-
改性介孔分子筛催化聚烯烃类废塑料裂解反应研究
Study on Pyrolysis of Polyolefins Catalyzed by Modified Mesoporous Molecular Sieves
-
大庆常压渣油催化裂解反应动力学模型研究
Studies on the Kinetic Model of Daqing Atmospheric Residue Catalytic Pyrolysis
-
纤维素热裂解反应机理及中间产物生成过程模拟研究
Simulation of cellulose pyrolysis mechanism and formation process of intermediate products