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ORGANIZER;CN=ESTAD 2023:mailto:info@metec-estad.com
LOCATION:Room 01
SUMMARY:Future oriented addition of cooling power by smart use of alternative energy feeds at coke plant Schwelgern 
DESCRIPTION:The Climate change, which is becoming increasingly evident, has an impact on our plants worldwide. Temperature-sensitive processes in particular are significantly impaired by the longer periods of hot weather. Higher cooling capacity is becoming unavoidable for constant production.
The raw coke oven gas (COG), generated at Coke Plant Schwelgern, is treated in the by-product plant and its valuable by-products are recovered by multi-stage absorbers. These processes are temperature-sensitive. The governmental permit limits the environment relevant concentration of substances like hydrogen sulphur in the purified COG and controls the limits via online monitoring. The efficiency of COG-treatment is sufficient, if the process is operated following the design parameters. The efficiency decreases during hot summer times which becomes more and more relevant. The original design of Coke Plant Schwelgern was not able to guarantee full production at hot summer times without violation of the environmental COG-limits.
The necessary cooling capacity for the absorption processes at the Schwelgern coke plant is provided by cooling towers. Thus, the cooling capacity depends on the ambient conditions, the installation of additional chiller cooling capacity becomes necessary. 
Conventional chillers have a very high electrical energy requirement and, in addition, the coolant is harmful to the environment, alternative energy sources must be tapped. 
At Coke Plant Schwelgern, the by-product plant generates a steady flow of hot waste water, which is an untapped potential for chiller water generation. The so-called absorption chillers can use this heat source to generate cooling water for cooling down COG and circulating water feeds to optimize the COG-treatment during hot periods, guaranteeing full coke production without violation of environmental COG-limits. 
This presentation illustrates the theoretical considerations for this project, reflects about commissioning and presents first results.

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DTSTART:20230614T114000
DTEND:20230614T120000
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