Research in the effects of water/carbon ratio variations on hydrogen production by partially oxidizing and reforming of gasoline;

In order to prolong the service life of Primary reformer tubes,this paper discussed how to manage Primary reformer tubes according to process requirements and tube type,and puts forward proposals,concerning how to control temperature and water/carbon ratio,how to prevent pulverization and bridging of the catalysts,as well as how to strengthen the maintenance of the reformer tubes,etc.

Analyzes the control of water/carbon ratio before and after the performance examinatoin of 2700t/d urea plant,points out the key to water/carbon ratio control,presents the characteristics of desorption-hydrolysis plant,and summarizes the operating experiences relative to water/carbon ratio control.

Comparison of control schemes of water-carbon ratio of hydrogen production plant;

, steam/carbon ratio, reformer exit temperature and temperature distribution in the reformer, in the DCS revamping for the 2~(nd) hydrogen plant of Shengli Refinery.

Based on the real world data from the hydrogen production unit of an oil refinery, an artificial neural network (ANN) model was developed for predicting the steam/carbon ratio in the conversion process of hydrogen production unit using BP (Back-Propagation) algorithm.

It shows that the catalysts both satisfy the production requirement of Braun process with low steam carbon ratio,are excellent catalysts.