As one of the most significant chemicals in the industry, 1,3-butadiene has been widely used in various fields. Recently, butane dehydrogenation (BDH) has emerged as a new frontier for the production of 1,3-butadiene. However, this process is limited by the low selectivity to the desired product since BDH experiences a complicated dehydrogenation process and the products consist of various C₁–C₄ hydrocarbons. Here, we demonstrate that an In₂O₃-modified Pt-based catalyst can serve as an effective catalyst for the dehydrogenation of n-butane to 1,3-butadiene. The optimum catalyst exhibits n-butane conversion and 1,3-butadiene selectivity of 45.2 and 21.9%, respectively, at 575 °C. Further experimental results indicate that In₂O₃ can improve the dispersion of Pt, regulate acidity, and suppress n-butane dehydroisomerization (BDI).

中文翻译：

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In2O3 调制的 Pt 基催化剂，用于正丁烷脱氢制 1,3-丁二烯，抑制脱氢异构化


1,3-丁二烯作为工业中最重要的化学品之一，已广泛应用于各个领域。最近，丁烷脱氢 （BDH） 已成为生产 1,3-丁二烯的新领域。然而，由于 BDH 经历了复杂的脱氢过程，并且产品由各种 C_{1-C 4} 碳氢化合物组成，因此该工艺受到对所需产物的低选择性的限制。在这里，我们证明了 In₂O₃ 修饰的 Pt 基催化剂可以作为正丁烷脱氢为 1,3-丁二烯的有效催化剂。最佳催化剂在 575 °C 时表现出 45.2% 和 21.9% 的正丁烷转化率和 1,3-丁二烯选择性。 进一步的实验结果表明，In₂O₃ 可以改善 Pt 的分散性，调节酸度，并抑制正丁烷脱氢异构化 （BDI）。