Project combines biomass, solar for synthetic fuel
Technology Review
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Weimer, a former Dow Chemical engineer, says the system is "agnostic" to the types of biomass it can process. "It's like a sledgehammer because of the (1,200 to 1,300 ºC) temperatures it operates at," he says, explaining that conventional gasification uses lower temperatures to try to minimize the volume of biomass used to fuel the process. But keeping the temperature lower poses another problem. Gasification at temperatures below 1,000 ºC leaves behind tar. "And that tar is expensive to get rid of," says Weimer. "If you leave it in there, it will end up killing your catalysts downstream when you try to reform your product into (liquid) fuel."
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