Method of fabricating catalyst carrier for generating hydrogen through methane reformation

摘要

A method is provided for fabricating a catalyst carrier. At first, aluminum hydroxide is used for forming an alumina powder. The alumina powder is mixed with carbon nanotubes and a complex additive to be shaped into a cake. The cake is kneaded into a noodle-like shape to be hot-dried. Then, calcination is processed in a furnace under 1200 celsius degrees (° C.) with air passed through. The crystal structure remains without phase change. A catalyst carrier of α-alumina having nano-scaled pores is formed. The catalyst carrier is a powdery material made into different three-dimensional forms. The catalyst carrier thus fabricated is suitable for generating hydrogen through methane reformation. The catalyst carrier has a methane conversion greater than 99 percents. The catalyst carrier will not be crumbled under 800° C. for 4000 hours without carbon deposit.

主权项

1. A method of fabricating a catalyst carrier for generating hydrogen through methane reformation, comprising steps of
(a) heat treating aluminum hydroxide (Al(OH)3) in a furnace and drying said Al(OH)3 under a temperature of 95-140° C. and, then, placing said Al(OH)3 in a high-temperature furnace to be calcined at a temperature of 320-480° C. for 4-6 hours to obtain an alumina powder; (b) mixing said alumina powder with carbon nanotubes to be added with a complex additive; (c) kneading said carbon nanotubes, said alumina powder and said complex additive in a kneading device to obtain a cake; (d) extruding said kneaded cake using an extruding machine to extrude an extruded carrier; and (e) drying said extruded carrier under a temperature of 110-150° C. and calcining said extruded carrier to obtain an α-alumina (α-Al2O3) carrier distributed with a plurality of nano-scaled pores.