甲醇蒸汽重組催化薄膜反應器之實驗研究

EXPERIMENT STUDY ON CATALYTIC MEMBRANE REACTOR FOR METHANOL STEAM REFORMING

石慧雯(Hui-Wen Shih)

指導教授 ： 洪賑城 ； 張新福

大同大學/工程學院/化學工程學系所/碩士(2005年)

摘要

It is the objective of this research to set up a catalytic membrane
reactor with double Pd membrane tubes for methanol steam reforming
(MSR) using commercially available catalyst, and to study hydrogen
permeation of the Pd tube and the kinetics of the catalysts.
The results of hydrogen permeation experiments show that when
new catalysts are used, the metal catalysts might deposit onto the surface
of Pd membrane, resulting in a significant reduction of hydrogen
permeation. For a new Pd tube, regeneration with hydrogen increases
hydrogen permeation.
The hydrogen permeation data have been fitted to an n-th power
model of pressure by non-linear regression, and the best-fitted value of n is
in between 0.50 and 0.89.
The experimental results reveal that increasing temperature or
decreasing WHSV increase both conversions of MSR and Reverse-WGS,
however, the pressure effect on conversions is insignificant. Hydrogen
yield increases with increasing pressure or decreasing WHSV.

關鍵字

甲醇蒸汽重組 ； 催化薄膜反應器

並列摘要

本研究的目標是建立一組應用於甲醇蒸氣重組，含有雙鈀膜管以
及商業用觸媒的催化薄膜反應器，並且研究鈀膜管的氫氣滲透特性及
觸媒動力學模式。
氫氣滲透實驗結果顯示，當使用新觸媒時，金屬觸媒可能會沉積
在鈀膜管的表面，導致氫氣滲透明顯下降。對於一根新的鈀膜管而言，
利用氫氣再生可以增加其氫氣的滲透。
本研究將氫氣滲透數據利用非線性迴歸套入壓力之n 次方數學
模式。實驗數據與模式計算最吻合的n 值在0.50 至0.89 之間。
實驗數據顯示溫度增加或WHSV 減少都會提高甲醇蒸氣重組反應
和逆水氣轉移反應(Reverse-WGS)的轉化率，然而壓力對轉化率的影響
並不是很顯著。氫氣的產率會隨著壓力的增加或WHSV 的減少而提高。

並列關鍵字

catalytic membrane reactor ； methanol steam reforming

參考文獻

Ji, P.; van der Kooi, H. J.; de Swaan Arons, J. Simulation and

thermodynamic analysis of conventional and oxygen permeable CPO

reactors. Chem. Eng. Sci 2003, 58, 2921.

Reactor. Catalysis Today 2001, 67, 77.

[3] Gallucci, F.; Paturzo, L. Basile, A. Hydrogen recovery from