Biodiesel Sludge Converted to Hydrogen

Let our journalists help you make sense of the noise: Subscribe to the Mother Jones Daily newsletter and get a recap of news that matters.


241469637_3334f8faa3_m.jpg What to do with the byproduct of biodiesel? You know, that low-grade sludge that’s produced, molecule for molecule, alongside biodiesel. Well, scientists at the University of Leeds have turned the unwanted crude glycerol (sludge) into a high-value hydrogen rich gas. The novel process developed by Valerie Dupont and her co-investigators mixes glycerol with steam at controlled temperatures and pressures, separating the waste product into hydrogen, water and carbon dioxide, with no residues. A special absorbent material filters out the CO2, leaving a purer product.

Currently hydrogen production is expensive and unsustainable, using either increasingly scarce fossil fuels or other less efficient methods such as water electrolysis. The new process is near carbon neutral, since the CO2 generated is not derived from the use of fossil fuels.

Let’s hope the new processes emerging from a worldwide explosion of research prove green, sustainable, and economically feasible.

Julia Whitty is Mother Jones’ environmental correspondent. You can read from her new book, The Fragile Edge, and other writings, here.

FACT:

Mother Jones was founded as a nonprofit in 1976 because we knew corporations and the wealthy wouldn't fund the type of hard-hitting journalism we set out to do.

Today, reader support makes up about two-thirds of our budget, allows us to dig deep on stories that matter, and lets us keep our reporting free for everyone. If you value what you get from Mother Jones, please join us with a tax-deductible donation today so we can keep on doing the type of journalism 2020 demands.

payment methods

FACT:

Mother Jones was founded as a nonprofit in 1976 because we knew corporations and the wealthy wouldn't fund the type of hard-hitting journalism we set out to do.

Today, reader support makes up about two-thirds of our budget, allows us to dig deep on stories that matter, and lets us keep our reporting free for everyone. If you value what you get from Mother Jones, please join us with a tax-deductible donation today so we can keep on doing the type of journalism 2020 demands.

payment methods

We Recommend

Latest

Sign up for our free newsletter

Subscribe to the Mother Jones Daily to have our top stories delivered directly to your inbox.

Get our award-winning magazine

Save big on a full year of investigations, ideas, and insights.

Subscribe

Support our journalism

Help Mother Jones' reporters dig deep with a tax-deductible donation.

Donate