Abstract

Heat-resistant, heat-conducting, and selective catalysts based on nickel highly porous foam-cellular material (HPFCM) and a mesh support are developed for the air conversion (partial oxidation) of low alkanes into additives that initiate combustion for fuel supplied to an engine as synthesis gas. The catalysts are developed in several stages: preparing a support based on nickel HPFCM (amount of Ni, 99.95%; PPI = 40) or an FeCrAl mesh; creating the support surface; forming structured blocks; the heat treatment of samples; applying an active component via the repeated co-impregnation of magnesium and nickel acetates; and stepwise heat treatment. NiO-MgO/(HPFCM or FeCrAl) catalysts tested in the air conversion reactions of propane, propane-butane, and natural gas, and in tri-reforming are prepared using this technique. The catalysts exhibit conversion of 90–96% over 80–100 h in all experiments at hourly space velocities of 32 000–71 000 h⁻¹ and coefficients of air excess of 0.31–0.43 with no formation of coke. A two-phase two-temperature mathematical model of the air conversion of liquefied petroleum gases (LPGs) that is in good agreement with experimental data on the temperatures of the catalyst and flow, and on the composition of the gas mixture at the output, is developed for numerical analysis of the results. Results from calculations for a generator of the air conversion of LPGs at a thermal power of 100 kW are presented as an example.

中文翻译：

---

结构化金属载体上的Ni / MgO催化剂，用于将低烷烃空气转化为合成气

摘要

开发了基于镍的高多孔泡沫多孔材料（HPFCM）和网状载体的耐热，导热和选择性催化剂，用于将低烷烃空气转化（部分氧化）成添加剂，从而引发燃烧，燃烧供入燃料的燃料。发动机作为合成气。催化剂分几个阶段开发：制备基于镍HPFCM（Ni含量为99.95％； PPI = 40）或FeCrAl筛网的载体。创建支撑面；形成结构化的块；样品的热处理；通过重复共浸渍醋酸镁和醋酸镍来施加活性成分；和逐步热处理。使用该技术制备了在丙烷，丙烷-丁烷和天然气的空气转化反应中以及在三重整中测试的NiO-MgO /（HPFCM或FeCrAl）催化剂。^-1且空气过剩系数为0.31-0.43，且未形成焦炭。液化石油气（LPG）空气转化的两相两温数学模型与关于催化剂和流动温度以及输出气体混合物的实验数据非常吻合开发用于结果的数值分析。举例说明了在100 kW热功率下对LPG进行空气转化的发电机的计算结果。