ISSN:0009-286X    

DOI:10.1002/cite.330701202

出版商:WILEY‐VCH Verlag    

年代:1998

数据来源: WILEY

ISSN:0009-286X    

DOI:10.1002/cite.330701203

出版商:WILEY‐VCH Verlag    

年代:1998

数据来源: WILEY

摘要:

AbstractReactive Distillation ProcessesReactive distillation, i.e. the simultaneous implementation of reaction and distillation in a counter–current column, is a promising alternative to the conventional sequential processes. In a preceding paper the effective phase equilibrium of a reactive distillation was studied with a special focus on the determination of so–called reactive azeotropes. In this contribution, a knowledge of these thermodynamic fundamentals is applied to the conceptual design of reactive distillation processes. Furthermore, some process examples of technically important processes are presen

ISSN:0009-286X    

DOI:10.1002/cite.330701204

出版商:WILEY‐VCH Verlag    

年代:1998

数据来源: WILEY

摘要:

AbstractDioxins – Task for Environmental EngineeringTwo decades of the environmental history of dioxins, i.e. of PCCDs and PCDFs, are examined, with the main emphasis being placed on developments in Germany. After a brief consideration of the important, environmentally relevant properties of dioxins, interest is focussed on the course of the Seveso incident of 1976. The environmental effects of dioxins observed in Seveso received global publicity. In the following years our knowledge of the analysis and toxicology of this group of substances greatly improved and the production of dioxins in the aromatics sector of the chemical industry was drastically reduced. In the 1980s, discussions concentrated on the formation of dioxins in waste incineration. The results obtained during this period led to the present situation in which waste incineration is no longer a significant source of dioxin emission in Germany. The greatest known source of dioxins in Germany is in the metallurgical industry. By the year 2000 this dioxin source will also have been largely eliminate

ISSN:0009-286X    

DOI:10.1002/cite.330701205

出版商:WILEY‐VCH Verlag    

年代:1998

数据来源: WILEY

ISSN:0009-286X    

DOI:10.1002/cite.330701206

出版商:WILEY‐VCH Verlag    

年代:1998

数据来源: WILEY

ISSN:0009-286X    

DOI:10.1002/cite.330701207

出版商:WILEY‐VCH Verlag    

年代:1998

数据来源: WILEY

ISSN:0009-286X    

DOI:10.1002/cite.330701208

出版商:WILEY‐VCH Verlag    

年代:1998

数据来源: WILEY

ISSN:0009-286X    

DOI:10.1002/cite.330701209

出版商:WILEY‐VCH Verlag    

年代:1998

数据来源: WILEY

ISSN:0009-286X    

DOI:10.1002/cite.330701210

出版商:WILEY‐VCH Verlag    

年代:1998

数据来源: WILEY

ISSN:0009-286X    

DOI:10.1002/cite.330701211

出版商:WILEY‐VCH Verlag    

年代:1998

数据来源: WILEY