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2003-2020 全部
为您找到包含“催化加氢”的内容共31

王钰,毛治博,张华森,雒廷亮,刘国际

2009-08-03

以正丁醇为溶剂,均匀设计实验,考察了反应温度、氢气压力、反应时间以及催化剂用量对腰果酚催化加氢工艺的影响。在高压釜中填料100mL的腰果酚以及200mL的正丁醇,加入雷尼镍催化剂4.0g,反应温度

河南省教育厅科技攻关项目(2009A530004

郑州大学化工与能源学院,郑州大学化工与能源学院,郑州大学化工与能源学院,郑州大学化工与能源学院,郑州大学化工与能源学院

#化学工程#

杨拥军,姚远,尹笃林

2008-09-03

本文综述了近年来催化加氢邻氯硝基苯合成邻氯苯胺的催化剂研究进展,对复合型Ni催化剂和负载型贵金属催化剂的结构和催化性能特点进行了总结和比较。

湖南师范大学精细催化合成研究所,湖南师范大学精细催化合成研究所,湖南师范大学精细催化合成研究所

#化学工程#

0评论(0 分享(0)

阮仁祥,李文志,张颖,朱锡锋

2010-04-13

催化加氢与酯化的效果。生物油轻组分主要含有酸类、醛酮、不饱和醇及少量酚类化合物。精炼处理后,生物油轻组分中的有机酸普遍转化为酯类化合物,糠醛被完全消除。其中甲酸与甲酸钠引发的水煤气反应能够提供大量H2

高等学校博士学科点专项科研基金(200803581021

国家自然科学基金青年科学基金 (20806077

中国科学技术大学安徽省生物质洁净能源重点实验室,中国科学技术大学安徽省生物质洁净能源重点实验室,中国科学技术大学安徽省生物质洁净能源重点实验室,中国科学技术大学安徽省生物质洁净能源重点实验室

#能源科学技术#

0评论(0 分享(0)

魏晴,魏贤勇,梅丽敏,宗志敏

2011-07-07

高效利用的技术进展,分别对生物油作液体燃料使用和作化工原料生产化学品的最新研究进行介绍。并分析生物油的品质提升技术——生物油催化加氢和催化裂解的当前研究现状,总结存在的问题,预测了今后的发展方向。最后

徐州市工业科技计划(XM08C092

国家重点基础研究发展计划(973计划)(2007CB210205

江苏省自然科学基金(BK2007036

中国矿业大学化工学院,中国矿业大学化工学院,中国矿业大学化工学院,中国矿业大学化工学院

#化学工程#

本文收录在中国科技论文在线,2011,6(6):406-409.

0评论(0 分享(0)

王忠利,陈涛,王际平

2018-01-08

本文研究了负载型贵金属催化剂、骨架型雷尼镍(Raney-Ni)催化剂在带有取代基的2,4-二氯硝基苯催化加氢制备相应的2,4-二氯苯胺的反应中的催化活性,并探讨了其对反应转化率及选择性的影响。通过对

浙江省公益基金(2016C33017),浙江省自然科学基

浙江省公益基金(2016C33017

浙江省自然科学基金(LY17B020013

浙江省公益基金(2016C33017

浙江省自然科学基金(LY17B020013

Zhejiang Sci-Tech University, School of Materials and Textile, Hangzhou, Zhejiang Province, 310018,Zhejiang Sci-Tech University, School of Materials and Textile, Hangzhou, Zhejiang Province, 310018,Zhejiang Sci-Tech University, School of Materials and Textile, Hangzhou, Zhejiang Province, 310018

#化学#

柴永明,刘宾,焦玉萍,刘晨光

2014-03-12

采用过渡金属含硫盐低温转化法构建过渡金属硫化物活性相,考察了活性组分Co和Mo的浸渍顺序对催化剂活性相微观结构及其加氢脱硫性能的影响。结果表明,浸渍顺序能够影响活性相的结构和尺寸,采用共浸渍法制备的硫化型CoMo催化剂表面活性相分散更均一,颗粒更小,具有最优的加氢脱硫活性和选择性。同时,证实催化剂表面Co-Mo-S活性相的角位为加氢脱硫活性位,而边位为氢解脱硫活性位。

高等学校博士学科点专项科研基金(20100133120007

中国石油大学(华东)化学工程学院,重质油国家重点实验室,青岛 266580,中国石油大学(华东)化学工程学院,重质油国家重点实验室,青岛 266580,中国石油大学(华东)化学工程学院,重质油国家重点实验室,青岛 266580,中国石油大学(华东)化学工程学院,重质油国家重点实验室,青岛 266580

#化学工程#

秦瑞霞,燕杰善,刘仕伟

2017-09-15

本论文研究了醛或酮经过催化加氢还原烷基化反应生成二甲基异丙基胺的过程,考察了催化剂的种类、物料比、反应时间、反应温度、反应压力五个因素对反应结果的影响,确定了较佳反应条件。当以雷尼镍为催化剂时,在n

Qingdao University of Science and Technology,School of Chemical Engineering,Qingdao 266000,Qingdao University of Science and Technology,School of Chemical Engineering,Qingdao 266000,Qingdao University of Science and Technology,School of Chemical Engineering,Qingdao 266000

#化学#

0评论(0 分享(0)

HAN Kaiyue,ZUO Haoran,ZHU Zhenwei,MENG Chen,GUO Wenze,CAO Guiping

Polystyrene hydrogenation is an important post-polymerization process with good market prospects. However, the traditional powder catalysts are not suitable for industrialized process. In this paper, the macroporous ceramic foams (CFs) were prepared using synthetic template replica method. In order to obtain the ceramic foams with three-dimensional networks and good mechanical properties, a uniform design was carried out to optimize the composition of the slurry and calcining conditions, including the contents of H2O, binder, calcining temperature, heating rate, and calcining time. Effects of the rheological behavior of the slurry on the strength, porosity, and microstructure of the CFs were investigated in details. The obtained ceramic foam catalysts facilitated the separation of catalyst from solution and exhibited good catalytic activity.

2015-03-04

Science and Technology Commission of Shanghai Municipality (No. 10520706000

State Key Laboratory of Chemical Engineering open fund (No. SKL-ChE-09C07

National Students’ Innovation and Entrepreneurship Training Program (No. 091025105

Specialized Research Fund for the Doctoral Program of Higher Education of China ( No. 1210251101

Department of Chemical Engineering, East China University of Science and Technology, Shanghai 200237,Department of Chemical Engineering, East China University of Science and Technology, Shanghai 200237,Department of Chemical Engineering, East China University of Science and Technology, Shanghai 200237,Department of Chemical Engineering, East China University of Science and Technology, Shanghai 200237,Department of Chemical Engineering, East China University of Science and Technology, Shanghai 200237,Department of Chemical Engineering, East China University of Science and Technology, Shanghai 200237

#Chemical Engineering#

0评论(0 分享(0)

HAN Kaiyue,GUO Wenze,WANG Meng,MENG Chen,CAO Guiping

Hydrogenation of polystyrene (PS) to produce hydrogenated polystyrene, also known as polycyclohexylethylene, is an important polymer modification process to improved heat and UV resistance of PS. Owning to the large size of PS coils and high viscosity of the system, macroporous ceramic foam (CF) had good industrial potential. However, the CF usually possessed low specific surface area (<1 m2/g) due to high-temperature sintering. In this paper, the SiO2-TiO2 CF (STCF) was prepared using synthetic template replica method, and further HF-etching was applied to increase the specific surface area. The effect of HF etching on the mechanical and structural properties of STCF was investigated by strength test, SEM, EDX, and XRD, respectively. By optimizing the treatment time, HF-etching could remove the SiO2 on the surface of CF sample while the SiO2 inside the struts was remained, leaving interspaces on the etched CFs struts (0.5 - 1.0 μm). The obtained 0.1STCF-HF5 with increased specific surface area could facilitate the dispersion of Pd. The Pd-supported HF-etched STCF catalyst exhibited enhanced hydrogenation activity with negliable internal diffusion of PS coils.

2015-03-04

Science and Technology Commission of Shanghai Municipality (No. 10520706000

Specialized Research Fund for the Doctoral Program of Higher Education of China (No. 20110074110012

National Students’ Innovation and Entrepreneurship Training Program (No. 091025105

State Key Laboratory of Chemical Engineering open fund ( No. 1210251101

Department of Chemical Engineering, East China University of Science and Technology, Shanghai 200237,Department of Chemical Engineering, East China University of Science and Technology, Shanghai 200237,Department of Chemical Engineering, East China University of Science and Technology, Shanghai 200237,Department of Chemical Engineering, East China University of Science and Technology, Shanghai 200237,Department of Chemical Engineering, East China University of Science and Technology, Shanghai 200237

#Materials Science#

本文收录在中国科技论文在线精品论文,2015,8(23):2482-2490.

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