biofuel news

Biomass is attracting growing interest from researchers as a source of renewable, sustainable, and clean energy. It can be converted into bio-oil by thermochemical methods, such as gasification, liquefaction, and pyrolysis, and used to produce fuels, chemicals, and biomaterials.

In Journal for Renewable and Sustainable Energy, researchers from Heilongjiang Academy of Agricultural Machinery Sciences in China share their work on the physicochemical properties and antioxidant activity of wood vinegar and tar fraction in bio-oil produced from hazelnut shells pyrolysis at 400 degrees Celsius to 1,000 C.

Wood vinegar is often used in agricultural fields as insect repellent, fertilizer, and plant growth promoter or inhibitor, and can be applied as an odor remover, wood preservative, and animal feed additive.

“After these results, wood vinegar and tar obtained from residual hazelnut shells could be considered as potential source of renewable energy dependent on their own characteristics,” said author Liu Xifeng.

The researchers found the wood vinegar and tar left over after burning the shells contained the most phenolic substances, which laid a foundation for the subsequent research on antioxidant properties.

The experiments were conducted in a tube furnace pyrolysis reactor, and hazelnut shells samples weighing 20 grams were placed in the waiting area of a quartz tube in advance. When the target temperature was reached and stable, the raw materials were pushed to the reaction region and heated for 20 minutes.

The biochar was determined as the ratio of pyrolytic char and biomass weight, and the bio-oil yield was calculated by the increased weight of the condenser.

To separate two fractions of bio-oil sufficiently, the liquid product was centrifuged at 3,200 revolutions per minute for eight minutes, and the aqueous fraction was called wood vinegar. The separated tar fraction remained stationary for 24 hours without the appearance of the aqueous phase.

The wood vinegar and tar were respectively stored in a sealed tube and preserved in a refrigerator at 4 C for experimental analysis, and the gas yield was calculated by considering their combined volume.

The researchers found the pyrolysis temperature had a significant effect on the yield and properties of wood vinegar and tar fraction in bio-oil obtained from hazelnut shells. Wood vinegar was the dominant liquid fraction with maximal yield of 31.23 weight percent obtained at 700 C, attributable to the high concentration of water.

This research sets the groundwork for further applications of bio-oil from waste hazelnut shell pyrolysis, and its application in antioxidant activity has been extended.

“Influence of pyrolysis temperature on bio-oil produced from hazelnut shells: Physico-chemical properties and antioxidant activity of wood vinegar and tar fraction”

TECH NEWS RELATED

How to prep solar panels for winter weather

Solar panels need extra care if there's ice and snow in your area.

View more: How to prep solar panels for winter weather

DARPA's ReSource Program turns waste into purified products, food

Launched in 2021, DARPA’s ReSource program aims to revolutionize how the military procures critical supplies on the battlefield by engineering self-contained, integrated systems that rapidly produce large quantities of supplies from feedstock collected on-site. Performer teams are tasked with developing systems to break down mixed waste, including common plastics, ...

View more: DARPA's ReSource Program turns waste into purified products, food

Tasmania to be site of Australia's first bioLNG facility

Optimal Group and BOC, a subsidiary of Linde plc, have has announced a Memorandum of Understanding agreement to jointly explore the development of Australia’s first bioLNG facility at the BOC Westbury micro-LNG Plant in Tasmania. The agreement will allow the companies to investigate the potential of Optimal’s subsidiary, Optimal ...

View more: Tasmania to be site of Australia's first bioLNG facility

Energy Dome is a CO2 Power Storage Generator for Solar Energy, Capable of Storing 200 MWh

Energy Dome is a carbon dioxide (CO2) power storage which also acts as a power generator that can help in solar power on its power generation and storage. The device is capable of storing as much as 200 megawatts per hour (MWh), meaning that it is a high capacity, and ...

View more: Energy Dome is a CO2 Power Storage Generator for Solar Energy, Capable of Storing 200 MWh

Cyber Week sale: 20% off solar panels at Goal Zero

Cyber Monday may be over, but the savings continue at Goal Zero.

View more: Cyber Week sale: 20% off solar panels at Goal Zero

Are Tesla solar panels the best option? A price match guarantee makes its case

The electric car company offers a strong warranty and top-of-the-line energy storage. It also promises to be the cheapest.

View more: Are Tesla solar panels the best option? A price match guarantee makes its case

Solar panel buying guide for RVs, campervans and travel trailers: Everything you need to know

Want to outfit your camper with solar panels? Read on.

View more: Solar panel buying guide for RVs, campervans and travel trailers: Everything you need to know

Heat pump vs. furnace: Learn the difference and find out which one is best for your home

Do you live in a moderate or cold climate? That can be a deciding factor between a heat pump and a furnace.

View more: Heat pump vs. furnace: Learn the difference and find out which one is best for your home

Solar panel maintenance guide: How to clean and repair solar panels

It’s time to stop demonizing “invasive” species

Best Carbon Footprint-Tracking Apps 2021: Monitor Energy Consumption With These Android, iOS Applications

South Korea’s KSTAR Fusion Reaction Breaks Own Record, Soon A Self-Sustaining Nuclear Energy Power Source?

A new Supreme Court case could gut the government’s power to fight climate change

Fake rhino horns were supposed to foil poachers. What went wrong?

When the world actually solved an environmental crisis

The thorny truth about socially responsible investing

The controversial plan to bring jaguars back to the US

The $5 trillion insurance industry faces a reckoning. Blame climate change.

Coffee as we know it is in danger. Can we breed a better cup?

Airlines to Have Electric Planes as Zero-Emission Solution! But, is This Possible for Commercial Flights?

OTHER TECH NEWS

;