Diesel and crude oil adsorbencies were simulated according
to our novel model proposed herein and found to reach a
maximum by optimizing the autohydrolysis conditions. These
conditions could be 200 ◦C for time 10min isothermal reaction
time (i.e., log R0 = 5.15) giving (i) diesel adsorbency up to
6.1 g g−1, crude oil adsorbency up to 8.4 g g−1, RDA = 84% and
RCOA = 75% in the case of oil spill on freshwater and (ii) diesel
adsorbency up to 6.7 g g−1, crude oil adsorbency up to 6.9 g g−1,
RDA = 71% and RCOA = 80% in the case of oil spill on seawater.
The autohydrolyzed wheat straw can be used as low-cost
adsorbent for oil spill cleaning.