5. March 2021
Henriette zu Doha
Biochar | CCS | Co2-Footprint | Pyrolysis

Biochar as Nega­tive Emis­sion Tech­no­logy (NET)

The strict requi­re­ments of the EBC

In order to achieve climate neutra­lity by 2050, as called for by the EU, two funda­ment­ally diffe­rent strands of action are required: on the one hand, the reduc­tion of carbon emis­sions, and on the other, the crea­tion of carbon sinks.

(source: Glen peters @ https://www.cicero.oslo.no/en/posts/climate-news/stylised-pathways-to-well-below-2c)

In the EU, this would require seques­te­ring a carbon quan­tity on the order of 15% of 1990 emis­sions, or about 850 million metric tons of CO2 equi­va­lent. Without carbon sinks, also known as nega­tive emis­sions, climate neutra­lity and thus the Paris climate goals cannot be achieved.

There are a number of viable methods for crea­ting carbon sinks, also known as Nega­tive Emis­sion Tech­no­lo­gies (NET), that actively remove CO2 from the atmo­s­phere. The key to carbon effi­ci­ency is sequestra­tion (i.e., storage) over as long a period of time as possible.

Source: Peters_Glen

(source: EBI White Paper adjusted from MCC)

The Euro­pean Biochar Certi­fi­cate (EBC) for quality control was supple­mented in June 2020 with a new stan­dard for carbon sink certi­fi­ca­tion (EBC, 2020). This provided a scien­ti­fi­cally sound basis for quan­ti­fying the overall carbon sink perfor­mance of biochar appli­ca­tions. Key elements include:

  1. Biomass produc­tion must be carbon neutral, i.e., it must not impact exis­ting carbon sinks.
  2. Emis­sions from the entire char­ring process (pyro­lysis) must be subtracted. In parti­cular, this includes emis­sions asso­ciated with the trans­port and proces­sing of the biomass, any post-treat­ment, and the energy required to start the pyro­lysis process.
  3. Emis­sions from trans­por­ting the biochar to the point of use and, if appli­cable, emis­sions from further proces­sing of the biochar must also be subtracted.
  4. The final use of the biochar deter­mines the dura­bi­lity of the carbon sink. For example, for soil appli­ca­tions, a scien­ti­fi­cally based annual decay must be assumed. However, if the biochar is used as a sand repla­ce­ment in concrete, for example, this is not necessary because the biochar cannot oxidize in the absence of air.

0 Comments

Submit a Comment

Your email address will not be published. Required fields are marked *

DAS KÖNNTE SIE AUCH INTERESSIEREN

Taking respon­si­bi­lity for CO2 from biomass

Taking respon­si­bi­lity for CO2 from biomass

Biogenic residues, such as those released for disposal in industrial processes as well as those that have so far simply been left to rot (e.g. wood cuttings), pose a considerable climate problem: they contain carbon. In conventional disposal...

Sweden: Max Burgers turns waste into biochar and saves the climate

Sweden: Max Burgers turns waste into biochar and saves the climate

Max Burgers, Sweden’s favourite hamburger restaurant chain, is currently participating in a pilot biochar project enabled by our partner Skånefrö, a Swedish producer and supplier of EBC-certified premium biochar. Max Burgers is a pioneer in climate...

SWEDEN: Climate commis­sion recom­mends use of biochar

SWEDEN: Climate commis­sion recom­mends use of biochar

Sweden aims to become climate-neutral by 2045 and has had a special commission draw up a strategy for this. The comprehensive report was presented yesterday. On 850 pages, it describes "paths to a climate-friendly future". It is not without reason...