Egil Andersen

Innovative Biowaste Technology

Feedstocks for biogas - different energy content

Antec Biogas

Potential kWh pr ton theoretically

Chicken manure 450 kWh

Cow manure 140 kWh

Houshold waste 1700 kWh

Fruit 950 kWhSugar 3900 kWh Black water sludge 600 kWh

Food Industry 2500 kWhStraw 800 kWh

Slaugther waste 4800 kWh

Hydrolysis Acidproduction Methaneproduction

Antec Biogas

The biological process in biogas production –step by step

Carbo

hydrates

Fat

Protein

Sugar

Fat

acids

Amino

acids

carbon

acids

Alcohols

Hydrogenc

Co2,

Acetic acids

Acetic acids

CO2

Hydrogen

Methane

CO2

The process of biogas formation is a result of linked process steps, in which the initial material is continuously broken down into smaller units. Specific groups of micro-organisms are involved in each individual step. These organisms successively decompose the products of the previous steps. The simplified diagram of the AD process, shown in Figure 3.5, highlights the four main process steps: hydrolysis, acidogenesis, acetogenesis, and methanogenesis. Kilde: Biogas handbook Published by University of Southern Denmark 2008.

Methane

production in the

last phaseManure,

Food waste

Sludge

Fruit waste

Gras, corn

…….

Antec Biogas

The combination of technologies in an Antec biogas reactor

Plug flow + biofilm

Substrate

input Biorest out

Gas out

Hydrolyses Acid Production Methane Production

Each of the chambers are filled with a texture that is

covered with bacteria film (biofilm)

Totally 472 m2/ 1620m2 of bacteria surface/film that

accelerate the transformation process in each step

Our value proposition: Biogas – at lower cost

Antec Biogas

FROM

▪ Fermentation tanks in general

• 20 – 30 days process time

• Large volumes due to longresidual time

• LOT of water, only 4-8% dry matter

• Large plants, costly to build

TO

▪ Antec is an alternative with

• More methane - faster

• 640 -1.560 m2 of biofilm surface

• 7 days process time.

• Less water, up to 15 % dry matter.

• Small size – containerbased or mobile solutions.

The key is focus on the biologic breakdown process in the tanks

Mixed feedstocks➔ high gas production

Antec Biogas

Example end to end prosess

1950 kwh/pr tonn potential

$=

Electricity 40% + Heating 55%

$=

+

+

Antec Biogas

System design – small plant with 2 reactors – 30 m3 – input 3100 tons

Blandetank

Gassmåler

Biogjødsel

Påfylling til tanker

Shredder pumpe

Varmeveksler Pumpe til reaktorMatepumpe

Ensilasje Matsubstrat

Ventilkobling

Ventilkobling

Pumpe

SO4 rensingSO4 rensing Strøm/

varmeFakkel

AvvanningAvvanning

Biofilmreaktor

Budget price for complete plant with

gascleaning and CHP: € 1 Million

Potensiale production results:

Total Gas production Kwh 3 585 846

Nm3 sales of gas 328 975

Gas production a day 914

m3 gas per hour 38

Kw per hour GAS 381

Kw per hour electricity (40% efficiency) 137

Antec Biogas

Reactors can be clustered for larger plants - 4 x 105 m3

Antec Biogas

On-line full-automatic operation of the system

Moving a complete plant to customer site

Antec Biogas

Nitra - Kolinany Slovakia

Antec Biogas

Technical container to the right, reactor left

Antec Biogas

Winner of the Bioenergy Innovation Award 2016

Innovations award for a new type of biogasreactor

The jury say:

• The winner this year represents a potential paradigm shift within the production of biogas. With their

solution, biogas may be a profitable solution for green energy, and one may expect a dramatic reduction of

the cost of biogas production.

From left: Marie Bysveen

(SINTEF/CenBio), Trond Værnes

(Norwegian Research counsil),

Uno Andersen (Antec Biogas),

Egil Andersen (Antec Biogas) and

Odd-Jarle Skjelhaugen

(NMBU/CenBio).

(Photo: Michaël Becidan/CenBio)