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US 12,516,473 B2Granted
Arrangement and method for pretreatment of biomass
AssigneeSekab E-Technology AB
InventorsAnders Sjöblom, Elias Sundvall, Adnan Cavka
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Abstract
The present disclosure generally relates to a pretreatment arrangement (100) for pretreatment of lignocellulosic biomass comprising a reactor vessel (101) having an upstream inlet (102) for receiving biomass and a downstream outlet (103) for discharging biomass. The pretreatment arrangement (100) further comprises a gas valve (104) and gas flow control means (106).
Claims15
A pretreatment arrangement (100) for pretreatment of lignocellulosic biomass material comprising
- a reactor vessel (101) having an upstream inlet (102) for receiving lignocellulosic biomass and a downstream outlet (103) for discharging the lignocellulosic biomass,
- a gas valve (104) arranged to remove gas from the reactor vessel and having an adjustable opening configuration,
- measuring means (105, 112) arranged for measuring a number of process parameters of the pretreatment in the reactor vessel, which process parameters include at least a temperature parameter, a pressure parameter, and a gas parameter indicating the amount or concentration of gas in the reactor vessel (101), and
- gas flow control means (106) configured to adjust the outflow of gas from the gas valve in response to the measured process parameters, whereby a controlled flow of gas out from the reactor vessel is achieved, and wherein the gas flow control means (106) is configured to determine a ratio between the temperature parameter and the pressure parameter and adjust the outflow of gas from the gas valve (104) in response to the determined ratio.
1 more element
Dependencies are inferred from the claim text.