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Publikováno v:
Polymer Degradation and Stability. 93:1194-1204
Liquefaction of tar from oil distillation was studied under sub- and supercritical water conditions using a batch reactor at 623 and 673 K and 25–40 MPa. The reaction scheme for tar liquefaction was determined as follows: the liquefaction process o
Publikováno v:
Polymer Degradation and Stability. 76:179-184
Post-use polyurethane (PU) foam was degraded in superheated water at 423 to 623 K. The yield of diaminotoluene (TDA), one of the products, reached near 90%. The hydrolysis conditions (time and temperature) were important and the perfect liquid produc