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Thematic Network on Hazard Assessment of Highly Reactive Systems

Deliverables

The aim of HarsMeth is to provide the SMEs with a methodology for the hazard assessment of chemical processes. It provides assistance for the safety assessment of batch and semi-batch processes in an easy structured way by using basic rules and methods. The main part of HarsMeth represents a short-cut procedure that can be used as an interactive on-line tool. Next to it, a document containing different checklists for the thermal hazard evaluation of the process is available. The assessment is based on safety data introduced by the user and gives general hints concerning hazardous process conditions. This methodology is thought to be used by engineers in SMEs who are not necessarily experts in the fields treated by HarsNet. For this reason, all the data required for the assessment are intended to be easy to determine from physical and chemical parameters of the substances involved, and thermokinetic data available through simple calorimetric experiments. In order to make the methodology meet the requirements of SMEs, during its preparation it has been tested by different European chemical companies. The feedback obtained from these companies has been decisive in the final result of the task. The guide for risk assessment has been translated to Spanish, Italian, Portuguese, Greek, and French, and is available for download in the HarsNet web page. The interactive tool is also available for its use at the web page.
HarsBase is a collection of links to chemical reaction safety related data such as flash points, heat capacities, etc. An overview of content and value of each link is given either in a short abstract or, in more concentrated form, in a table. Additionally, a page is presented describing different calorimeter types and those that are commercially available. The information provided includes technical data like working principles, temperature and pressure ranges as well as an indication of advantages, disadvantages and requirements for operation. It also includes a collection of literature references called HarsLibrary, where additional information can be found on books and articles concerning chemical safety. The contents of HarsBase are: - Books and journals - Substances and Properties - Safety Laboratories - Organizations - Scientific Working Groups - Producers of Fine Chemicals. All this information is included in a set of Internet links classified regarding the kind of information provided. A separated section of HarsBase contains information about publications on the matters treated by HarsNet, and it is called HarsLibrary.
HarsSMEs is the interface between the HarsNet partners and the chemical industry. As part of this task, national forums, conferences and individual meetings are supported. The main activities that take place in these forums is the dissemination of the work done by HarsNet and in how can SMEs use and take profit of this work. The objectives of these actions are to create a wide European forum for the exchange of knowledge and technological development, and to establish a platform to disseminate the work done by the network, where the chemical industry has the opportunity to explain their problems and concerns. This subtasks aims to promote and encourage the adoption of the HarsNet results by the process industries. As a result of those activities, agreements have been established in different countries with chemical societies or associations, in order to create awareness and to help transfer all the HarsNet results throughout the chemical industry. In the last period of HarsNet, the dissemination of HarsMeth has been very intense. SMEs have been able to express their opinion on the methodology, either by the visits that partners have done to the SMEs, or through the training partners area of the web page. The feedback collected has been used to improve the methodology. SMEs have also shown a great interest in using HarsBook as a guide to assess the hazard of their reactive processes.
The objective of this subtask is to consolidate and to maintain the www site, HarsWeb. This page includes descriptions of the tasks included in HarsNet, is available in eight languages of different countries represented in HarsNet.The foundations of HarsWeb were established by all the partners as follows: - HarsWeb should be public in order that the general information about HarsNet could be widely disseminated - HarsWeb also contains all the information about HarsMeth, HarsEdu and HarsBook and information about internal and external news related with the HarsNet topics - The HarsWeb contents should pay special attention to SMEs - A link should be open to get the feedback from the HarsWeb users - HarsWeb must contain public and private parts. Other items in HarsWeb are: - An introduction to the goals and the motivation of HarsNet - A list of the Partnership - A list of national contacts, in order to facilitate that those interested in the network have a national HarsNet partner to get in touch with - Quick access to the links included in HarsBase - News about hazard assessment of reactive chemical systems -Possibility to contact the Webmaster - Link to the web page of the future Thematic Network S2S
The goal of HarsEdu is to provide a critical review of existing chemical safety training courses that are offered in Europe. Links are provided so that users (and SMEs in particular) will be able to find out where to obtain information on the courses they may require. Further, it is an aim of HarsEdu to provide the fundamental knowledge needed to become aware of the possible process dangers. As a result of the necessities expressed by SMEs, it was agreed that HarsNet should provide them with the necessary information to improve the safety of chemical processes. If not, at least it should be provided the way to find that information. In the case of education, a critical review of existing training programmes was prepared. In this review, a list of the courses on chemical safety that can be found at European countries is included. This list provides technical information on the main characteristics of those courses, information given, and number of hours dedicated.The second part of HarsEdu is related to the proposal of guidelines for training programmes. A document has been prepared, which includes a list of the fundamental topics related to thermal hazards in batch and semi-batch processes that should be taught in undergraduate and postgraduate courses for engineers. This list does not intend give any information on the subjects included, but to be a reference for anyone interested in the chemical safety education that a future engineer should receive.
HarsBook consists of a guide for experts in the field of thermal safety of chemical processes, and is based on the accumulated and shared experience of the partners. It describes the best methods currently available for predicting, assessing and minimizing exothermic reaction hazards. It is structured in a way that covers all the steps related to a chemical process, from the research of information to the storage of unstable substances. It is a reference source that can be used in relation to other activities of HarsNet. HarsBook is available on the web page of HarsNet, but it can also be purchased in a printed version published by Dechema e.V. Initially, the name of this subtask was HarsGuide, and its purpose was to summarize some of the stages in assessing exothermic reaction hazards and to describe the types of equipment that are commercially available in this context. The final document prepared has fully surpassed the initial prospect of this subtask. In fact, even though the original idea was to keep it as an internal working document, it was decided to make it public, given that it could be of potential interest for SMEs. Chapters included in HarsBook are: - Introduction - Desktop screening - Testing Methods - Thermal screening - Reaction Calorimetry - Adiabatic Calorimetry - Inherent safety - Safe Storage of unstable compounds - Additional topics - Glossary

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