Refrigerators can be divided into compressor refrigeration and absorption depending on the cooling principle. The former refrigerant is mainly such as tetrafluoroethane, called R-134a. The latter refrigerant is mainly ammonia (R717). In Taiwan, the annual amount of waste absorbent refrigerators is about 200,000 units. Although the number is not much, the recycling industry has hestitations of safety hazards and equipment damage for disposal of waste absorption refrigerator refrigerant ammonia. At the same time, there is no compressor in a waste absorption refrigerator, therefore its subsidies can not be certified. It seriously affects the willingness of industry to recycle and treat waste absorption refrigerators. It is necessary to carry out systematic and practical recovery test, and put forward the domestic ammonia-containing waste absorption refrigerator treatment solution. The plan is to develop waste absorption refrigerator refrigerant treatment technology. At first, waste absorption refrigerator collection has been carried out, then ammonia refrigerant recovery technology and ammonia refrigerant reuse have been developed and discussed, and finally combined with waste household appliances treatment operators to carry out the actual waste absorption refrigerator refrigerant treatment process test. The completion of this plan, it is expected that the establishment of domestic ammonia-containing waste absorption refrigerator recycling technology, effectively solve the problem of de-chemical, to achieve environmental protection purposes. This plan has completed the collection of ammonia refrigerant treatment literature. Completed 26 waste-absorbing refrigerator refrigerant pipeline manual dismantling and refrigerant sampling, analysis and identification and refrigerant content analysis: refrigerant for ammonia (concentration ≧ 25% ammonia and high-pressure ammonia gas), each refrigerator refrigerant content of 45-247 g (different from the factory brand models), refrigerant pipeline volume 0.8-1.1 liters, refrigerant pressure 13.1-19 kg/cm2; Completed the analysis of trace metal elements of ammonia refrigerant, some ammonia refrigerant contains high concentration of heavy metal hexavalent chromium, should be added to the composition of refrigerant corrosion-resistant component Na2CrO4 caused. Completed the technical and cost assessment of three ammonia refrigerant recovery treatment methods. The adsorption efficiency of the micro-nanoporous adsorption material developed by the ITRI is better than that of activated carbon. It is helpful to the ammonia exhaust gas treatment in the process of waste absorption refrigerator treatment. Finally, we set up a waste absorption refrigerator refrigerant recycling device and hold a waste absorption refrigerator refrigerant recycling education training for two times.

waste absorption refrigerator, ammonia refrigerant, recovery