Modeling of heat recovery from a steam-gas mixture in a high-temperature sorption process

AIChE Journal ◽  
2011 ◽  
Vol 58 (1) ◽  
pp. 312-321 ◽  
Author(s):  
Kwangkook Jeong ◽  
Shivaji Sircar ◽  
Hugo S. Caram
Keyword(s):  
High Temperature ◽  
Heat Recovery ◽  
Sorption Process ◽  
Gas Mixture

scholarly journals Wastewater Treatment Plants as Local Thermal Power Stations—Modifying Internal Heat Supply for Covering External Heat Demand

Processes ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 1981
Author(s):  
Florian Kretschmer ◽  
Bernd Hrdy ◽  
Georg Neugebauer ◽  
Gernot Stoeglehner
Keyword(s):  
Wastewater Treatment ◽  
High Temperature ◽  
Low Temperature ◽  
Feasibility Study ◽  
Heat Recovery ◽  
Heat Supply ◽  
Wastewater Treatment Plants ◽  
Internal Heat ◽  
District Heating ◽  
Gas Combustion

To counteract climate change, the application of renewable energy sources and their efficient use are of crucial importance. In this context, wastewater has also gained increased attention in recent years. For decades, wastewater treatment plants have applied the heat from digester gas combustion to supply internal demands. However, in the context of efficient energy use the question arises: can using high temperature heat for supplying low temperature demand still be considered the best option? This article presents an innovative approach to covering wastewater treatment plant (WWTP) internal demand with low temperature wastewater heat recovery, making thermal energy from digester gas combustion available for feed-in to a local high temperature district heating network. The presented feasibility study was carried out in an Austrian municipality and investigates the heat balance, the economic risk, climatic benefits and the social aspects of the suggested approach. The practical implementation of the novel approach was planned in two steps. First, the WWTP should be connected to the district heating network to enable the feed-in of excess heat. Second, the WWTP internal heat supply should be modified and based on wastewater heat recovery from the effluent. Due to the promising results of the feasibility study, the first step was realized in summer 2020. The second and final step was initiated in 2021.

scholarly journals Possibility of Slag Sensible Heat Recovery on Drum-like Installations

2020 ◽  
Author(s):  
Yu.V. Sorokin ◽  
B.L. Demin ◽  
L.A. Smirnov ◽  
Ye.N. Shcherbakov
Keyword(s):  
High Temperature ◽  
Heat Recovery ◽  
Heat Content ◽  
Sensible Heat ◽  
Energy Characteristics ◽  
Working Bodies ◽  
Physical Heat

A variant of utilizing of slag physical heat in drum-like installations has been considered. A high-temperature melt is delivered to movable metal bodies. Heat is picked up from the working bodies surface and newly generated surfaces of slag due to interaction with working bodies. Surface of slag grains, as they cool down, allows to pick up heat with various energy characteristics. Keywords: smelter slags, heat content, drum-like installations, picking up and utilization of heat with various energy characteristics

scholarly journals High-temperature multilevel sterilization of canned goods with heat recovery and its constructive and technological support

2021 ◽  
Vol 247 ◽  
pp. 01030
Author(s):  
Mafiiat Rakhmanova ◽  
Amiiat Demirova ◽  
Magomed Akhmedov ◽  
Faina Azimova ◽  
Irada Gadzhibekova ◽  
...  
Keyword(s):  
Heat Treatment ◽  
High Temperature ◽  
Heat Recovery ◽  
Experimental Studies ◽  
Cooling Water ◽  
Practical Implementation ◽  
Canned Food ◽  
Significant Saving ◽  
Technological Support ◽  
Thermal Sterilization

New technical solutions improving the process of thermal sterilization of canned products through the use of multilevel high-temperature modes and heat recovery have been considered and proposed. The essence of the developed method lies in the fact that the heat released by cooling cans with the product that has undergone thermal sterilization is used to heat other cans with the product queued for sterilization. In this mode of heat treatment, except in the last stage, the heat emitted by cooled cans that have already undergone heat treatment is used to heat up the canned food. Hence, the use of the principle of heat recovery by cooling canned products in the baths where others are simultaneously heated provides a significant saving of heat energy and water. Depending on the temperature parameters at different stages of the heat treatment, the heat recovery rate can reach up to 90%. The method also provides savings on cooling water. For the practical implementation of the developed method, the design of the device for multilevel high-temperature thermal sterilization of canned food with heat recovery has been developed. On the basis of experimental studies, new, multilevel high-temperature modes of apple compote sterilization have been developed.

scholarly journals FeOx/Al2O3 catalysts for high-temperature decomposition of N2O under conditions of NH3 oxidation in nitric acid production

2018 ◽  
Vol 8 (11) ◽  
pp. 2841-2852 ◽  
Author(s):  
Galina Sádovská ◽  
Edyta Tabor ◽  
Milan Bernauer ◽  
Petr Sazama ◽  
Vlastimil Fíla ◽  
...  
Keyword(s):  
High Temperature ◽  
Nitric Acid ◽  
Acid Production ◽  
Active Species ◽  
Gas Mixture ◽  
Temperature Decomposition ◽  
Nh3 Oxidation ◽  
Oxidation Of Ammonia

The δ and θ Al2O3 phases well stabilized Fe(iii) in Td or Oh coordination, which were identified as the active species in high temperature decomposition of N2O in a complex gas mixture produced by oxidation of ammonia.

scholarly journals Heat recovery at high temperature by molten salts for high temperature processing industries

2019 ◽  
Author(s):  
Andy Gibbs ◽  
Ben William Robinson ◽  
Sylvie Rougé ◽  
Hussam Jouhara ◽  
A. K. M. Asaduzzaman ◽  
...  
Keyword(s):  
High Temperature ◽  
Molten Salts ◽  
Heat Recovery ◽  
High Temperature Processing
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