Sustainable activated carbons of macroalgae waste from the Agar–Agar industry. Prospects as adsorbent for gas storage at high pressures

Sewage biogas efficient purification by means of lignocellulosic waste-based activated carbons

“…The experimental carbons displayed higher carbon contents (>94% vs <90%) and lower ash content (<2% vs >7%) than the commercial ACs. Similar C contents have been reported for activated carbons obtained from the valorization of other residues such as chestnut shells (Ruiz et al, 2017) and algae meal waste (Ferrera-Lorenzo et al, 2014a). The commercial H 3 PO 4 -activated carbon AC5 stood out for its relatively low carbon (80.15%) and high hydrogen (2.31%) and oxygen (7.37%) contents among the rest of the materials.…”

“…Part of the grounded sample was pyrolyzed in a tubular furnace Carbolite CTF 12/65/550. Pyrolysis conditions were selected according to previous experience (Ferrera-Lorenzo et al, 2014a;Gil et al, 2012) and were 150 mL min -1 of N 2 flow, a heating rate of 5 ºC min -1 up to 750ºC and maintained at this temperature for 60 min.…”

“…Low-cost and sustainable bioresources like biomass residues have gained attention in the recent years. Nowadays, loads of scientific studies have suggested the use of residues from the food, weather or automobile industries as precursor materials to produce activated carbons (Ferrera-Lorenzo et al, 2014a;Gil et al, 2014;Mui et al, 2010;Ros et al, 2006;Ruiz et al, 2017).…”

Activated carbon from Diplotaxis Harra biomass: Optimization of preparation conditions and heavy metal removal

“…Among these methods, sorption on activated carbon is one of the most effective, economic and simplest methods for the removal of pollutants from aqueous solutions. Therefore, activated carbons are excellent adsorbents and promising materials that are extensively used in a wide range of applications such as medical uses [10], industrial applications [11], gas storage [12], catalysis [13] and environmental pollution. The activated carbon can be produced from various fossil carbon sources such as lignite, peat and oil residues, however the depletion of these resources encourages researchers to use renewable resources from biomass as precursors for activated carbons [14].…”

Thermochemical behaviour of Algal Waste: Kinetics and Mechanism of the Pyrolysis

“…It could be used as biofuelif its quality is appropriate. In addition, the pyrolytic gas can be used as a combustible fuel, while the char has various applicationsincluding fertilizer, activated carbon material and carbon sequestration [10].…”