To decrease the environmentally toxic wastewater caused by the homogeneous basic system of biodiesel production, a stable CaO was developed by modifying commercial CaO with ethyl bromide. Fourier transform infrared spectroscopies indicate that the modifier bonded onto the surface of CaO chemically. Almost no other water was adsorbed on the modified CaO surface, even with exposure in saturated water vapor atmosphere for 50 h, as suggested by the results of a humidity test, while a 98 % moisture absorption degree was detected over commercial CaO. The high catalytic activity of modified CaO in a 4 % water-content reaction system contributes to the hydrophobic layer formed by ethyl groups of modifier, which have the capacity of preventing the absorption of water to the CaO surface. Both the optimization of reaction condition and the water resistance of modified CaO were investigated in this work.
Research on Chemical Intermediates – Springer Journals
Published: Sep 18, 2013
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
All the latest content is available, no embargo periods.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud