Site C is a farm-based AD plant using energy crops, chicken manure, whole sugar beet on a seasonal basis and pot ale.
The site has 2 primary tanks in parallel with a total volume of 9000m 3. It is a 6.5 MWth biomethane plant with a gas to grid cap of 650m 3 /hr. The site usually operates between 550 and 600 m3 per hour and occasionally reaches the cap.
The operator supplies feedstock from their own farm and would like to produce more gas to reach the BtG cap on a more regular basis. The operator provided comprehensive site data with additional chemical analysis supplied by the Carbogenics laboratories.
We run our large-scale operations, following a proven process to maximise the outputs and collect data relevant for performance monitoring. We require minimum input from the operator at the same time offering our expert advice to add further value.
The Carbogenics team assess the sites operational and chemical data filling in any gaps where necessary. CreChar is supplied in 25 kg digestible bags which are added to the solid feed hopper daily, resulting in no disruption to normal plant operation.
The green bars show the monthly average methane yield per tonne of dry matter from whole site. The Black line is the CreChar® concentration in tank One. One. The last char went into tank one at the beginning of April which coincided with agitator breakdown causing a rapid decline in biogas output.
Despite fluctuations the analysis shows that there was:
Increased biogas yield and methane concentration will help plant achieve annual savings of £347 k/y that can be increased up to £461k/y with increased dose to treat both tanks.
The site will regularly reach the BtG cap increasing gas production by up to 50m 3 /hr. An increase in methane concentration can also help to reduce wear on gas upgrading equipment. Regular use of CreChar can also help stabilise the AD plant biology to enhance its performance and minimise expensive trouble shooting.
Tell us about your application and we’ll provide a data-driven quote based on your specific requirements.
(COO and Co-Founder) lidia.krzynowek@carbogenics.com
Site F operates a 4500m3 two stage semi-plug flow digester with a 1500m3 primary and 3000m3 secondary. The customer processes biogas via CHP engines into electricity with a capacity of 2 MW across 2 locations.
Site E is a CHP site which operates a Marches Biogas Double Ring digester on a mix of feedstocks, including Potato Peelings, Potatoes, Vegetable Waste, Chicken Manure, and Liquid Sugar.
