Tin-sulfur based catalysts for acetylene hydrochlorination

According to the results of X-ray photoelectron spectroscopy (XPS), HCl adsorption experiments, and acetylene temperature programmed desorption $(C_2 H_2 -TPD)$, it is reasonable to conclude that the interaction between Sn and S not only can retard the oxidation of Sn2+ in catalysts but also strengthen the reactant adsorption capacity of tin-based catalysts.

📌 3 Key Takeaways

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Objective & Hypothesis:In the present work, tin-sulfur based catalysts were prepared using $Na2 SO3$ and $(CH_3 SO_3 )_2$ Sn and were tested in acetylene hydrochlorination.

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Key Findings & Data:Based on the analysis of experiments results, the acetylene conversion of $(CH3 SO3 )_2$Sn/S@AC is still over 90%after a 50 h reaction, at the reaction conditions of T = 200 o $C, V_{HCl}/V_{C2H}2 = 1.1:1.0 and C2 H2 -GSHV = 15 h^{–1}$.

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Conclusion & Impact:According to the results of X-ray photoelectron spectroscopy (XPS), HCl adsorption experiments, and acetylene temperature programmed desorption $(C_2 H_2 -TPD)$, it is reasonable to conclude that the interaction between Sn and S not only can retard the oxidation of Sn2+ in catalysts but also strengthen the reactant adsorption capacity of tin-based catalysts.

🔬Design:Research Article

📍Scope:Comprehensive Sample

⚙️Variables:Domain Parameters

Abstract

In the present work, tin-sulfur based catalysts were prepared using $Na2 SO3$ and $(CH_3 SO_3 )_2$ Sn and were tested in acetylene hydrochlorination. Based on the analysis of experiments results, the acetylene conversion of $(CH3 SO3 )_2$Sn/S@AC is still over 90%after a 50 h reaction, at the reaction conditions of T = 200 o $C, V_{HCl}/V_{C2H}2 = 1.1:1.0 and C2 H2 -GSHV = 15 h^{–1}$. According to the results of X-ray photoelectron spectroscopy (XPS), HCl adsorption experiments, and acetylene temperature programmed desorption $(C_2 H_2 -TPD)$, it is reasonable to conclude that the interaction between Sn and S not only can retard the oxidation of Sn2+ in catalysts but also strengthen the reactant adsorption capacity of tin-based catalysts. Furthermore, results obtained from nitrogen adsorption/desorption and XPS proved that the CH3 SO3 - can effectively decrease the coke deposition of $(CH_3 SO_3 )_2$ Sn/AC and thus prolong the lifetime of $(CH_3 SO_3 )_2 Sn/AC.$

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Cite This Article

LUO, X., TIAN, G., FENG, Y., HAN, Y., WANG, L., CHU, S., CAO, Y., CAO, K., HU, X., SHI, X., LI, S., HE, G., WU, Y., LI, Q., LI, F. (2022). Tin-sulfur based catalysts for acetylene hydrochlorination. Turkish Journal of Chemistry, Cilt: 45 - Sayı: 3, 566–576. https://ajindex.com/articles/601807

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References (13)

Hao X, Luo G. Green production of PVC from laboratory to industrialization: state-of-the-art review of heterogeneous non-mercury catalysts for acetylene hydro chlorination. Journal of Industrial & Engineering Chemistry 2018
65 (25): 13-25. doi: 10.1016/j. jiec.2018.05.009 2. Zhong J, Xu Y, Liu Z. Heterogeneous non-mercury catalysts for acetylene hydro chlorination: progress, challenges, and opportunities. Green Chemistry 2018
20 (11): 2412-2427. doi: 10.1039/C8GC00768C 3. Zhu M, Wang Q, Chen K, Wang Y, Huang C et al. Development of a heterogeneous non-mercury catalyst for acetylene hydrochlorination. ACS Catalysis 2015
65 (25): 5306-5316. doi: 10.1021/acscatal.5b01178 4. Selin H. Global environmental law and treaty-making on hazardous substances: the minamata convention and mercury abatement. Global Environmental Politics 2014
14 (1): 1-19. doi: 10.1162/GLEP_a_00208 5. Gustin MS, Amos HM, Huang J. Measuring and modeling mercury in the atmosphere: a critical review. Atmospheric Chemistry and Physics 2015
15 (10): 5697-5713. doi: 10.5194/acp-15-5697-2015 6. Harris HH, Pickering IJ, George GN. The chemical form of mercury in fish. Science 2003
301 (5637): 1203-1203. doi: 10.1126/ science.1085941 7. Johnston P, Carthey N, Hutchings GJ. Discovery, development, and commercialization of gold catalysts for acetylene hydrochlorination. Journal of the American Chemical Society 2015
137 (46): 14548-14557. doi: 10.1021/jacs.5b07752 8. Conte M, Carley AF, Attard G, Herzing AA, Kiely CJ et al. Hydrochlorination of acetylene using supported bimetallic Au-based catalysts. Journal of Catalysis 2008
257 (1): 190-198. doi: 10.1016/j.jcat.2008.04.024 9. Hutchings GJ. Heterogeneous gold catalysis. ACS Central Science 2018
4 (9): 1095-1101. doi: 10.1021/acscentsci.8b00306 10. Nkosi B. Hydrochlorination of acetylene using gold catalysts: a study of catalyst deactivation. Journal of Catalysis 1991
128 (2): 366-377. doi: 10.1016/0021-9517(91)90295-F 11. Malta G, Kondrat SA, Freakley SJ, Davies CJ, Lu L et al. Identification of single-site gold catalysis in acetylene hydro chlorination. Science 2017
355 (6332): 1399-1403. doi: 10.1126/science.aal3439 12. Malta G, Freakley SJ, Kondrat SA, Hutchings GJ. Acetylene hydrochlorination using Au/carbon: a journey towards single site catalysis. Chemical Communications 2017
11733-11746. doi.org/10.1039/C7CC05986H 13. Li H, Wang F, Cai W, Zhang J, Zhang X. Hydrochlorination of acetylene using supported phosphorus-doped Cu-b