Open Access
Table 1
Field inspection, testing and monitoring data for catalyst-tube assembly and selection of test-samples for lab investigation.
| Tube no. | Field − testing/inspection/monitoring data | Selected samples for lab investigation | ||||||
|---|---|---|---|---|---|---|---|---|
| Cat. ΔP (psi) | Tube perimeter (mm) | Short piece bulge (%) | Tube-skin temp. (TMT) | For various studies (size and macro- and micro-structure) | For creep study | |||
| Top | Middle | Bottom | Part of catalyst tube assembly | Part of catalyst tube assembly | ||||
| Catalyst tube assemblya | ||||||||
| RC-28 | 21 | 419.0 | 419.5 | 420.9 | 7.1 | – | CT (bottom part) | X |
| RG-21 | 36 | 414.5 | 414.8 | 414.3 | 6.5 | High | CT (bottom part), S.P. and P.T. | X |
| RG-42 | 21 | 413.2 | 413.5 | 414.3 | 11.4 | – | CT (all parts) | CT (top and bottom part) |
| RI-1 | 8 | 415.4 | 418.8 | 420.2 | 4.3 | – | CT (bottom and middle parts) | CT (bottom part) |
| RE-29 | 26 | 416.1 | 415.1 | 415.0 | 1–2 | High | CT (bottom part), S.P. and P.T. | S.P. |
| RC-30 | 18 | 418.0 | 417.9 | 417.5 | 6.4b | – | S.P. and P.T. | X |
| RC-33 | 14 | 419.8 | 419.1 | 418.2 | 3–4 | – | CT (bottom part), S.P. and P.T. | S.P. and P.T. |
| RE-35 | 16 | 416.8 | 416.2 | 415.2 | 2–3 | High | CT (bottom part), S.P. and P.T. | S.P. |
| RG-8c | 7 | 417.0 | 418.5 | 418.5 | 0–1 | – | CT (all parts), S.P. and P.T. | S.P. and P.T. |
| Hot-collector | ||||||||
| Hot collector no. | Not applicable | H1, H2 and H5d | H5d | |||||
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