Upgrades and Repairs
Upgrades (modernisations) and repairs are a further aspect of the services provided by SELAS-LINDE. In particular, upgrades are particularly important, since only partial components are replaced here, which means that both investment and reconstruction times are kept to a minimum.
The upgrades are generally coupled with improved performance and lower levels of energy consumption. Emission levels are reduced through the use of modern low-NOx burners. The potential for improvement is based on a precise analysis of the existing data and operating parameters.
SELAS-LINDE choose suitable suppliers and experienced installation companies, which means that the workload for the customer on site is considerably reduced. Precise scheduling combined with professional project management ensures revamp is completed on time.
| Over 150 upgrades and repairs have been completed by Selas Linde |
| Subsequent calculation of the furnace plant in terms of process engineering |
| Mechanical calculation of the furnace components |
| Assessing and evaluating the incombustible materials to determine whether it should continue to be used or be replaced |
| Assessing and evaluating the coils and bundles to determine whether they should continue to be used or be replaced |
| Assessing and evaluating the burner and blower to determine whether they should continue to be used or be replaced including preparing proposals for improving the system, e.g. changing to low-NOx firing |
| Assessing and evaluating the heat exchangers whether they should continue to be used or be replaced |
| Preparing documents for calls to tender |
| Awarding contracts for goods and services |
| Quality monitoring, deadline planning and supervision of work |
DOW, Böhlen
(Germany) |
|
Refurbishment of an ethylene cracking furnace: partial renewal of convection zone, installation of additional soot blowers, 1996 |
| BOREALIS, Sines (Portugal) |
|
Refurbishment of two ethylene cracking furnaces: new radiation zone coils, repair: incombustible lining and steel walls, burner to low-NOx operation, replacement of quench coolers, 1998 & 1999 |
OMV, Schwechat
(Austria ) |
|
Refurbishment of two ethylene cracking furnaces: complete replacement of convection zone, 1999 & 2000 |
| VEBA, Scholven (Germany) |
|
New radiation zone coil, repair of incombustible lining and steel walls, 2001 |
DOW, Böhlen
(Germany |
|
Refurbishment of an ethylene cracking furnace: complete replacement of convection and radiation zone with burners, 2002 |
| DEA, Wesseling (Germany) |
|
Refurbishment of a xylol heater: increased capacity by renewal of convection zone and burners, 1992 |
| SOLVAY, Tavaux (France) |
|
Refurbishment of an EDC cracking furnace: increased capacity through refurbishment of convection zone, 2000 |
HOECHST,
Frankfurt a. M. (Germany) |
|
Refurbishment of two ketene furnace, renewal of tube bundles in radiation zone and convection zone after 30 years' operation, 2000/2002 |
| LINDE GAS, Milazzo (Italy) |
|
Refurbishment of s steam reformer: increased capacity through modification of steam drums and blowers, 2003 |
| VEBA OEL, Scholven (Germany) |
|
Refurbishment of a Visbreaker: increased capacity through replacement of tube bundles in radiation zone and convection zone, reduced emissions through replacement of burner, 1989 |
