Catalytic performance of ionic liquid for dehydrochlorination reaction: Excellent activity and unparalled stability

2019 ◽  
Vol 255 ◽  
pp. 117757 ◽  
Author(s):  
Pengze Zhang ◽  
Zhaobin Jiang ◽  
Yanhong Cui ◽  
Guanqun Xie ◽  
Yangzhen Jin ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Catalytic Performance ◽  
Excellent Activity ◽  
Dehydrochlorination Reaction

Decomposition of Ionic Liquid Solution Over CuIr-Hexaaluminate Catalysts

2020 ◽  
Vol 20 (7) ◽  
pp. 4466-4469
Author(s):  
Munjeong Kim ◽  
Jinwoo Kim ◽  
Hyojin Kim ◽  
Jeongsub Lee ◽  
Young Chul Park ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Physical Properties ◽  
Liquid Solution ◽  
Catalytic Performance ◽  
Ammonium Dinitramide ◽  
Liquid Propellant ◽  
Pellet Surface ◽  
Excellent Activity ◽  
Ionic Liquid Solution ◽  
Hexaaluminate Catalysts

The objective of this study is to elucidate the catalytic performance of hexaaluminate catalysts incorporating Cu and Ir simultaneously during the decomposition of an ammonium dinitramide (ADN)-based liquid propellant. Pellet-type catalysts were prepared and their chemico-physical properties were characterized by N2 adsorption, XRD, and XRF. It was confirmed that Cu and Ir atoms are well incorporated inside the hexaaluminate matrix of the Cu(x)Ir(10-x)-hexaaluminate catalysts and the content of Ir incorporated into hexaaluminte matrix was in the range of 2.5–8.2 wt%. The Cu(7)Ir(3)-hexaaluminate catalyst showed excellent activity in decomposition of ADN-based liquid monopropellant. The activity of the Cu(7)Ir(3)-hexaaluminate catalyst was much higher than that of the Cu(7)Ir(3)/hexaaluminate-imp catalyst prepared by impregnation of Cu and Ir onto the hexaaluminate pellet surface. This is attributed to the Cu and Ir being well incorporated in the hexaaluminate matrix and the dispersion of the Cu and Ir being greater in the Cu(7)Ir(3)-hexaaluminate than in the Cu(7)Ir(3)/hexaaluminate-imp.

Catalytic Performance of Imidazolide Basic Ionic Liquid in Knoevenagel Reactions in Aqueous Media

2011 ◽  
Vol 32 (4) ◽  
pp. 693-698
Author(s):  
Xuewei CHEN ◽  
Hongbing SONG ◽  
Xuehui LI ◽  
Furong WANG ◽  
Yu QIAN
Keyword(s):  
Ionic Liquid ◽  
Aqueous Media ◽  
Catalytic Performance ◽  
Basic Ionic Liquid

Efficient and Reusable Silica Gel Supported Metal Ionic Liquid Catalysts for Palmitic Acid Esterification to Biodiesel

2021 ◽  
Vol 43 (1) ◽  
pp. 1-1
Author(s):  
Guo Yingwei Guo Yingwei ◽  
Chen Xuedan Chen Xuedan ◽  
Yan Shiting Yan Shiting ◽  
Zhang Zhengliang Zhang Zhengliang ◽  
Chen Yuqin Chen Yuqin ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Palmitic Acid ◽  
Silica Gel ◽  
High Surface ◽  
High Surface Area ◽  
Kinetic Studies ◽  
Catalytic Performance ◽  
Reaction Conditions ◽  
Acid Esterification ◽  
Supported Metal

A series of silica gel (SG) supported metal ionic liquid catalysts (x[Bmim]Cl-CrCl3/SG) were synthesized and exploited for the esterification of palmitic acid (PA) with methanol (ML) to produce biodiesel efficiently. The 10%[Bmim]Cl-CrCl3/SG catalyst with high surface area and desirable acidity exhibited the best catalytic performance and reusability after six consecutive running cycles. Based on the response surface analysis, the optimal reaction conditions were obtained as follows: methanol/acid mole ratio = 11:1 mol/mol, catalyst amount = 5.3 wt%, reaction time = 65 min, as well as reaction temperature = 373 K, reaching to a biodiesel yield of 96.1%. Further kinetic studies demonstrated that the esterification of PA with ML obeyed 1.41 order kinetics for acid concentration with the activation energy of 16.88 kJ/mol

Stability, interparticle interactions and catalytic performance of gold nanoparticles synthesized through ionic liquid mediated oil palm leaves extract

2018 ◽  
Vol 6 (4) ◽  
pp. 5024-5031 ◽  
Author(s):  
Muhammad Irfan ◽  
Muhammad Moniruzzaman ◽  
Tausif Ahmad ◽  
Ola Yahia Osman ◽  
Pradip Chandra Mandal ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Ionic Liquid ◽  
Oil Palm ◽  
Catalytic Performance ◽  
Interparticle Interactions

Efficient and Reusable Silica Gel Supported Metal Ionic Liquid Catalysts for Palmitic Acid Esterification to Biodiesel

2021 ◽  
Vol 43 (1) ◽  
pp. 1-1
Author(s):  
Guo Yingwei Guo Yingwei ◽  
Chen Xuedan Chen Xuedan ◽  
Yan Shiting Yan Shiting ◽  
Zhang Zhengliang Zhang Zhengliang ◽  
Chen Yuqin Chen Yuqin ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Palmitic Acid ◽  
Silica Gel ◽  
High Surface ◽  
High Surface Area ◽  
Kinetic Studies ◽  
Catalytic Performance ◽  
Reaction Conditions ◽  
Acid Esterification ◽  
Supported Metal

A series of silica gel (SG) supported metal ionic liquid catalysts (x[Bmim]Cl-CrCl3/SG) were synthesized and exploited for the esterification of palmitic acid (PA) with methanol (ML) to produce biodiesel efficiently. The 10%[Bmim]Cl-CrCl3/SG catalyst with high surface area and desirable acidity exhibited the best catalytic performance and reusability after six consecutive running cycles. Based on the response surface analysis, the optimal reaction conditions were obtained as follows: methanol/acid mole ratio = 11:1 mol/mol, catalyst amount = 5.3 wt%, reaction time = 65 min, as well as reaction temperature = 373 K, reaching to a biodiesel yield of 96.1%. Further kinetic studies demonstrated that the esterification of PA with ML obeyed 1.41 order kinetics for acid concentration with the activation energy of 16.88 kJ/mol

scholarly journals Preparation and Catalytic Performance of Ionic Liquid Catalyst Immobilized by ZrO2

2013 ◽  
Vol 25 (8) ◽  
pp. 4523-4526
Author(s):  
Jianwei Lian ◽  
Jianling Xia ◽  
Kun Huang ◽  
Mei Li
Keyword(s):  
Ionic Liquid ◽  
Catalytic Performance

Impact of double-solvent impregnation on the Ni dispersion of Ni/SBA-15 catalysts and catalytic performance for the syngas methanation reaction

RSC Advances ◽  
2016 ◽  
Vol 6 (42) ◽  
pp. 35875-35883 ◽  
Author(s):  
Miao Tao ◽  
Zhong Xin ◽  
Xin Meng ◽  
Yuhao Lv ◽  
Zhicheng Bian
Keyword(s):  
Catalytic Performance ◽  
Impregnation Method ◽  
Co Methanation ◽  
Methanation Reaction ◽  
Excellent Activity

Ni/SBA-15 prepared by a double-solvent impregnation method showed excellent activity for CO methanation and catalyst sintering was the main cause of deactivation.

Sign in / Sign up

Export Citation Format

Share Document