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8170566 
Meetings & Symposia 
New chloride removal catalyst in CCR unit 
Brown, RS; Matsuoka, J; Aizawa, S; Fujiwara, K; Takase, T; Shioya, Y 
2001 
New Orleans, LA 
2001 Annual Meeting - National Petrochemical and Refiners Association 
2001 
English 
Operation of catalytic reformers requires injection of chloride compounds to regulate the performance of the reforming catalyst. Excess chlorides typically leave the process with the net hydrogen off-gas. Because water from the reduction of the reforming catalyst is also present, it is necessary to remove these chlorides from the off-gases of continuous regeneration catalytic reformers. Although activated aluminas have been used for chloride removal, they have certain disadvantages because of their potential to promote formation of organic chlorides, green oil, and gum. These can lead to problems of corrosion, burner plugging, fouling, or downstream catalyst poisoning. Zinc oxide based chloride generally eliminates these problems, but may also present problems with rapid pressure drop increase. Through a close cooperative effort between Japan Energy (JE) and Catalyst and Chemicals Inc, Far East (CCIFE), a series of improved chloride guards was developed. In this program, CCIFE produced and supplied various chloride adsorbent candidates which JE would first test in their laboratories in Mizushima, Japan, and subsequently would operate a commercial charge at their Mizushima refinery.