Abstract

The hydroconversion of n-C₁₀ was studied over functionalized AlMCM-41 with platinum rate exchange (0.5—4 wt%) and ammonium ions (95%). The n-C₁₀ underwent conversion with bi-functional catalysts Pt/H-AlMCM-41. The tests were carried out in a continuous fixed bed reactor under the following conditions of atmospheric pressure, ratio alkanes/H₂ 5:1, temperature (up to 600 °C), acidity and space velocity (0.1 h⁻¹ < WHSV < 2.1 h⁻¹). Relatively high yields of light products were obtained. Ptⁿ⁺/H-AlMCM-41 catalysts showed a good catalytic activity. The study revealed bimodal distribution; the adsorption of n-alkanes on acids sites and then their subsequent conversion. Thus; this phenomenon is improved by the textural/structural characteristics and (Ptⁿ⁺/H) bi-functionalization, responsible for the acidity on the inner surface of catalysts. This work has established a close relationship between structure, selectivity, activity and acidity of functionalized AlMCM-41. The nature and distribution of the obtained products suggest that the bi-functional catalysts show a good performance and better selectivity in hydrocracking reactions than hydroisomerization with its accompanying steric effects biased for multi-branched products.

中文翻译：

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使用官能化的AlMCM-41作为催化剂对nC 10烷烃进行加氢转化

摘要

研究了nC ₁₀在官能化的AlMCM-41上的加氢转化，其中铂交换率（0.5-4 wt％）和铵离子（95％）。nC ₁₀用双功能催化剂Pt / H-AlMCM-41转化。在以下条件下，在连续固定床反应器中进行测试：大气压，烷烃/ H ₂比5：1，温度（最高600°C），酸度和空速（0.1 h ^-1  <WHSV <2.1 h ^-1）。获得了相对高产率的轻产物。铂⁺/ H-AlMCM-41催化剂显示出良好的催化活性。该研究揭示了双峰分布。正构烷烃在酸位上的吸附，然后进行后续转化。从而; 这种现象通过结构/结构特征和（Pt ^{n +} / H）双官能化得到改善，这是由于催化剂内表面呈酸性。这项工作建立了功能化的AlMCM-41的结构，选择性，活性和酸度之间的密切关系。所得产物的性质和分布表明，与加氢异构化相比，双官能催化剂在加氢裂化反应中显示出良好的性能和更好的选择性，并且其伴随的空间效应对于多支链产物而言是偏向的。