Currently, the development of alternative and green energy sources has been being strongly
pushed aiming to recoup the lack of fossil energy, to meet the ever-increasing demand of …

The global impetus to produce alternatives for the petroleum-based fuels and value-added
chemicals in order to reduce greenhouse gases is currently emphasizing stringent need on …

Our work aims to produce a new catalyst that was a highly operative in the production of
biodiesel from waste cooking oil WCO. A heterogeneous solid acid catalyst (RS-SO 3 H) …

Herein, we reported a novel plasma-sulfonation process for carbon materials in dilute
sulfuric acid within a few tens of minutes. The total acidic and–SO3H densities of the …

Heterogeneous acidic catalysts offer many advantages such as lower corrosion, easier
separation and lower production cost compared with homogeneous sulfuric acid. Graphene …

Raw coal without carbonization was treated with sulfuric acid at different concentrations
(70% to 95%) as a controlled sulfonation process to produce a simple and effective acidic …

This paper reports the preparation, evaluation, and comparison of alkaline and acidic
heterogeneous carbon‐based catalysts in the transesterification of safflower oil with …

Background An efficient sulfonic acid‐type acid catalyst with high acid site density based on
hydrothermal carbon microspheres (HCMs) has been developed. The reaction by which …

In the present study, the esterification of oleic acid with methanol was studied in batch to
batch method over hydrothermal carbon catalyst (HTCC) from Ziziphus Mauritiana L.. The …

In the last decade, cultivation of dragon fruit or pitaya (Hylocereus spp., Cactaceae) has
expanded in Miami-Dade County, Florida. New growers and local farmers seeking …