Volume 93 Issue 17 | p. 7 | News of The Week
Issue Date: April 27, 2015 | Web Date: April 23, 2015

Hydrogel Could Green Up Fracking

Sustainability: Expandable hydraulic fluid could cut water and chemical additives used in fracking, but journal editors debate its “greenness”
Department: Science & Technology | Collection: Sustainability, Green Chemistry
News Channels: Environmental SCENE, Materials SCENE
Keywords: fracking, hydraulic fracturing, hydrogel, polyallylamine

Researchers have created a hydraulic fluid that transforms into an expandable hydrogel on interacting with carbon dioxide. The expansion process produces enough force to fracture rock. The hydrogel could reduce the amount of water and chemical additives required for hydraulic fracturing used to generate underground reservoirs for geothermal energy production or for oil and natural gas extraction.

The research paper reporting the promising technology, published in the journal Green Chemistry, has created a stir among . . .

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