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Role of biogas in the circular bioeconomy

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(1)

Role of biogas in the circular bioeconomy

Gyalai-Korpos Miklós

(2)

Circular economy

(3)

Role of biogas

Biogas plant

Organic waste (w/ or w/o pretreatment)

Digestate with high nutrient content

Biogas Existing system

and supply chain of client

VFA Extraction

PHA Production

PHA pellet Cell debris PHA system

PHA Production

Dewatering

Liquid fraction Solid fraction

Upgrade: biogas as fuel or grid injection

CHP: electricity and heat production Scheduled operation –

balance intermittent RES

(4)

Case study

Product #1 Oyster mushroom:

➢ Rich in vitamins

➢ Cheap protein source

➢ Low footprint production

Product #2 Pre-digested straw:

➢ Biorefinery feedstock

➢ All-year round available

➢ Optimized logistics Product #3

Biogas for:

➢ On-site heat supply

➢ Electricity

➢ Upgrade

Cascaded biomass use Industrial symbiosis

based production

Production – oyster mushroom

Leftover – pre- digested straw

valorisation Waste

management –

biogas

production

Feedstock –

wheat straw

(5)

Biogas substrate

(6)

Biogas plant

(7)

Energy production

(8)

Leftover

Hivatkozások

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