In de afgelopen maand heeft de IEA Taak 33 (Gasification of Biomass and Waste) een interessant rapport uitgebracht met een wereldwijd overzicht van de allernieuwste vergassingstechnologieën.
Tevens is een webinar georganiseerd waarin sommige van die technologieën zijn gepresenteerd. Kijk het webinar terug.
Het rapport is hier te vinden: rapport.
De samenvatting is hieronder in het Engels weergegeven.
Gasification is a flexible thermal conversion process with wide-ranging applications in sectors such as heat and power generation, transport fuel and chemicals production. In this report, a methodological framework for assessing the technology readiness of emerging gasification technologies is presented and applied to a selection of ten candidates, chosen to indicate the diversity of technical solutions breaking into the waste and biomass gasification market.
The examined technologies are broken down into standardized components, which are assigned a technology readiness level score following established guidelines developed for the purpose. Information is collected for various publicly available sources and used as far as possible to identify process configuration and compile process profiles based on a standard template. Particular attention is paid to technology demonstration as an integrated whole. Scores for individual components are weighed and aggregated to compute a weighted average overall TRL score, which is contrasted with the score for the weakest individual component.
The amount and quality of information publicly available for each evaluation varied greatly between technologies, but from experience, comprehensive structured questionnaires for technology developers face similar limitations in terms of the quality of response.
Identifying the lowest scoring component, i.e., the “weakest link” can show where future development may need to be focused and is considered a good complement to a weighted average score. The use of TRL scoring ranges is recommended in instances where granularity in scoring can be misleading, such as when the evidence available is of a generalized nature. The asymmetry in data and evidence between the different technologies are accounted for in the assignment of scores and weightings to some extent, but care is advised when interpreting the scores. Experience indicates that even commercially available equipment, which it is sometimes argued can be awarded a TRL score of 9 in an emerging configuration requires time and effort for successful integration novel streams in new process environments. This aspect has been incorporated in the methodological framework and is reflected in the scores for some of the examined technology components.
Despite the difficulties in fairly and systematically assessing and comparing technologies from incomplete data, the methodology provided has been successfully applied. It is hoped that this first attempt at a methodological framework for the assessment of emerging gasification technologies can, after further refinements, be more generally used within IEA Bioenergy Agreement Task 33 for similar exercises. One future activity could be the development of a standardized data sheet for technology assessment. Another would be to develop some form of formal guidance on the assignment of weighting for different process units.