04/01991 Method for preventing corrosion fatigue cracking at outer surface of coal combustion boiler tube and its damage diagnosis for power plant: Nakao, M. Jpn. Kokai Tokkyo Koho JP 2003 202,101 (Cl. F22B37/38), 18 Jul 2003, Appl. 2002/1,638. (In Japanese)
- Publisher
- Elsevier Science
- Year
- 2004
- Weight
- 176 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0140-6701
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✦ Synopsis
To obtain useful and reliable pyrolysis data under high pressures, continuous pyrolysis experiments were carried out using a drop tube furnace. To ascertain the reliability of data, a mass balance during pyrolysis was carefully checked. The pyrolysis data obtained in this equipment was compared with previous results, and the weight loss observed in the drop tube furnace was somewhat larger than those obtained with other apparatuses. The experimental results were compared with those predicted by three pyrolysis models. Although discrepancies between predictions and experimental results were observed under a certain condition, the agreement between the experimental weight losses with three predictions was fairly good at 800 ° and 1 MPa with all the models. Product distribution was also reasonably predicted with the Flashchain model. It is desirable to further improve the models by comparing their predictions with more extensive and reliable experimental data.