In 1963 Elliott manufactured the first hot gas expander for capturing waste flue gas energy from the fluid catalytic cracking (FCC) process. In the decades since this engineering breakthrough, Elliott has continued to lead in the development of new alloys, metallurgical treatments and design innovations that result in the highly reliable and easily maintained expanders available. In several instances, Elliott expanders have remained in operation for more than ten years with the original set of blades. Elliott’s TH expanders are available in four frame sizes and produce up to 45MW from the thermal energy in the FCC flue gas stream.

 

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