Hydrochlorination of acetylene to vinyl chloride monomer over bimetallic Au–La/SAC catalysts

Zhang, Haiyang; Dai, Bin; Wang, Xugen; Xu, Longlong; Zhu, Mingyuan

doi:10.1016/j.jiec.2011.11.075

Cited by 120 publications

(53 citation statements)

References 13 publications

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“…By contrast, the BET surface area and total pore volume for the Cu-g-C 3 N 4 /AC catalyst also decreased. This result may have been the result of the carbon deposition on the catalyst or pore [21]. …”

Section: Low-temperature N 2 Adsorption/desorption Experiments (Bet)mentioning

confidence: 99%

The Preparation of Cu-g-C3N4/AC Catalyst for Acetylene Hydrochlorination

Zhao

Dai

2016

Catalysts

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Abstract:A novel catalyst based on g-C 3 N 4 /activated carbon was prepared by adding CuCl 2 . The catalytic performance of the as-prepared catalyst was investigated in the acetylene hydrochlorination reaction. X-ray photoelectron spectroscopy, temperature programmed desorption, low temperature N 2 adsorption/desorption (Brunauer-Emmett-Teller), and thermal gravity analysis showed that Cu-g-C 3 N 4 /AC significantly enhanced the catalytic performance of the original catalyst by increasing the relative pyrrolic N content. Cu-g-C 3 N 4 /AC also affected the adsorption of hydrogen chloride and acetylene, as well as inhibited the coke deposition during acetylene hydrochlorination.

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Section: Low-temperature N 2 Adsorption/desorption Experiments (Bet)mentioning

confidence: 99%

The Preparation of Cu-g-C3N4/AC Catalyst for Acetylene Hydrochlorination

Zhao

Dai

2016

Catalysts

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“…The traditional processes use mercuric chloride supported on activated carbon, which causes lot of environmental pollution problems. For this reason, new catalysts are developed [237,238,245]. N-doped carbon is used as a catalyst in converting acetylene to vinyl chloride with acetylene conversion 77% and vinyl chloride selectivity >98% [246].…”

Section: Potential Existing Technologies and New Considerations For Vmentioning

confidence: 99%

“…N-doped carbon is used as a catalyst in converting acetylene to vinyl chloride with acetylene conversion 77% and vinyl chloride selectivity >98% [246]. With Au-La/SAC (SAC, spherical activated carbon) catalysts, the conversion of acetylene 98% and selectivity to VCM 99.8% can be obtained [245].…”

Section: Potential Existing Technologies and New Considerations For Vmentioning

confidence: 99%

Utilization of Volatile Organic Compounds as an Alternative for Destructive Abatement

et al. 2015

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Abstract:The treatment of volatile organic compounds (VOC) emissions is a necessity of today. The catalytic treatment has already proven to be environmentally and economically sound technology for the total oxidation of the VOCs. However, in certain cases, it may also become economical to utilize these emissions in some profitable way. Currently, the most common way to utilize the VOC emissions is their use in energy production. However, interesting possibilities are arising from the usage of VOCs in hydrogen and syngas production. Production of chemicals from VOC emissions is still mainly at the research stage. However, few commercial examples exist. This review will summarize the commercially existing VOC utilization possibilities, present the utilization applications that are in the research stage and introduce some novel ideas related to the catalytic utilization possibilities of the VOC emissions. In general, there exist a vast number of possibilities for VOC OPEN ACCESSCatalysts 2015, 5 1093 utilization via different catalytic processes, which creates also a good research potential for the future.

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“…Novel catalysts with high performance and stability are required, furthermore, they must be non-polluting and harmless. The search for catalysts tends to focus on metals that are active, but expensive and rare in the earth, to which the practical development of catalysts, such as Au-based [3][4][5][6][7] and Ru-based [8,9] catalysts, has been confined. Many scientists are concentrating on a reduction in the required load of noble metal while maintaining the same degree of activation.…”

Section: Introductionmentioning

confidence: 99%

“…Many scientists are concentrating on a reduction in the required load of noble metal while maintaining the same degree of activation. The addition of a second base metal, such as La [4], Co [5], Ni [10], Cu [11], and Cs [12], can modulate the electronic properties, which prevents the reduction of the +3 valence state of Au to a low valence, and more over promotes the whole activity. However, the problems that still face the use of Au as the main activated catalyst are that its cost is too high and it is hard to industrialize.…”

Section: Introductionmentioning

confidence: 99%

Activated Carbon Supported Mo-Ti-N Binary Transition Metal Nitride as Catalyst for Acetylene Hydrochlorination

Ding

Zhang

et al. 2017

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Abstract:Recently, many scientists have focused on the development of green industrial technology. However, the process of synthesizing vinyl chloride faces the problem of Hg pollution. Via a novel approach, we used two elements Mo and Ti to prepare an inexpensive and green binary transition metal nitride (BTMN) as the active ingredient in a catalyst with nano-sized particles and an excellent degree of activation, which was supported on activated carbon. When the Mo/Ti mole ratio was 3:1, the conversion of acetylene reached 89% and the selectivity exceeded 98.5%. The doping of Ti in Mo-based catalysts reduced the capacity of adsorption for acetylene and also increased the adsorption of hydrogen chloride. Most importantly, the performance of the BTMN excelled those of the individual transition metal nitrides, due to the synergistic activity between Mo and Ti. This will expand the new epoch of the employment of transition metal nitrides as catalysts in the hydrochlorination of acetylene reaction.

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Hydrochlorination of acetylene to vinyl chloride monomer over bimetallic Au–La/SAC catalysts

Cited by 120 publications

References 13 publications

The Preparation of Cu-g-C3N4/AC Catalyst for Acetylene Hydrochlorination

The Preparation of Cu-g-C3N4/AC Catalyst for Acetylene Hydrochlorination

Utilization of Volatile Organic Compounds as an Alternative for Destructive Abatement

Activated Carbon Supported Mo-Ti-N Binary Transition Metal Nitride as Catalyst for Acetylene Hydrochlorination

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