Remove Carbon Remove Sodium Remove Waste
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Fraunhofer team develops process to recycle carbon black from car tires

Green Car Congress

Waste tires have been used mainly for recovering energy sources; only small proportions of the carbon black contained in these tires are recycled, since mineral ash accounts for around 20% of its content. Around three kilograms of carbon black—also known as industrial soot—are found in a standard car tire.

Carbon 413
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U Alberta team develops hybrid sodium-ion capacitor; intermediate in energy & power between ultracaps and batteries

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A team led by researchers from the University of Alberta (Canada) Scientists has developed a hybrid sodium-ion capacitor (NIC) using active materials in both the anode and the cathode derived entirely from peanut shells—a green and highly economical waste globally generated at more than 6 million tons per year. Scanned from 1.5–4.2

Sodium 278
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Sparc Technologies, QUT partner to develop a hard carbon anode material from bio-waste for Na-ion batteries

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The partnership will begin with a project in the battery anode space with the development of a novel process for the production of hard carbon from bio-waste. Using readily available, sustainable bio-waste material will provide Sparc with a strong environmental value proposition when compared with conventional sources of hard carbon.

Waste 195
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ORNL-led team uses carbon material derived from tire waste to convert used cooking oil to biofuel

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Using a novel, reusable carbon material derived from old rubber tires, an Oak Ridge National Laboratory (ORNL)-led research team has developed a simple method to convert used cooking oil into biofuel. The patent-pending, waste oil-to-biofuel conversion adds a new approach to waste tire recycling initiatives. —Hood et al.

Waste 150
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Researchers use CaO catalyst to produce biodiesel/monoglyceride blend; avoiding waste glycerol

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The resulting blend exhibits properties similar to conventional biodiesel, while reducing waste and improving conversion. Biodiesel is produced from vegetable oils or animal fats via a transesterification reaction with a short chain alcohol and a basic catalyst such as sodium or potassium methoxide.

Waste 236
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ORNL advancing LDH sorbent to recover lithium from geothermal brine wastes

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By some estimates, as much as 15,000 metric tons per year of lithium carbonate could be recovered from a single geothermal power plant in the Salton Sea area of California—one of the most mineral-rich brine sources in the United States. Concentrated brines left over from the operation are then pumped back into the ground.

Waste 314
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Tesla breaks ground on in-house lithium refinery in Texas; battery-grade lithium for ~1M EVs per year

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The dominant conventional process for refining battery-grade lithium from hard rocks such as spodumene and lepidolite relies on sulfuric acid and produces sodium sulfate as a byproduct—a waste stream that requires costly and proper disposal. Tesla will use inert reagents such as soda ash and lime.

Texas 243