Andco- Torrax System

In the mid 1970s, Andco Incorporated developed and commercialized a slagging process called the Andco-Torrax System for converting MSW to low-... 

From European experience it can be concluded that the Andco-Torrax system is a feasible PTGL-process but that it takes much time and trouble before such a new process can be operated with a sufficient degree of reliability. It is still too early to compare the process to conventional mass-incineration. At present the consumption of auxiliary fuel is still very high at 5 to 12 GJ/h (Luxemburg). The power consumption, at 60 - 80 kWh/t of refuse is about twice that of a conventional incinerator. The consumption of cooling water and the composition of the flue gas are roughly comparable. 

Davidson, P. E., and Lucas, T. W., Jr. (1978). The Andco-Torrax High Temperature Slagging Pyrolysis System. 175th National Meeting of the American Chemical Society, Anaheim, CA, March 15. 

The only PTGL-process currently operating at a commercial scale is the American-developed Andco-Torrax process, pioneered in Europe by S.A. Ets Paul Wurth (Luxemburg). Since its start-up in 1976 the Leudelange plant has operated intermittently, the frequent periods of shutdovn being used for modifying various parts of the system. At present the reliability of the process has considerably improved but the nominal design capacity (200 t/day) vill probably not be attained. [ 6]. ... 

Figure 5. Andco Torrax waste pyrolysis system [21]...

---