Original Article:
CaO-loaded alginate capsule modified with silane coupling agents for transesterification of rapeseed oil with methanol
Takeshi Furusawa, et al.
Chemical Engineering Journal, 2016, 288, 473-481.
10.1016/j.cej.2015.12.031
Biodiesel fuel (BDF) can be used as an alternative to diesel fuel due to BDF's low sulfur content, absence of aromatics and carbon neutrality. Waste cooking oil, animal fat, and non-edible oil can be used as raw materials for the production of BDF. Solid base catalysts such as CaO catalysts have been developed for the transesterification reaction to prepare BDF. However, in order to solve the problem of active species dissolving in the BDF and glycerol phases during the reaction, solid-supported catalysts, such as CaO-loaded alginate capsules, need to be developed.
In this work, n-butyltrimethoxysilane (BTMS) was used as a silane coupling agent to reinforce CaO-loaded alginate capsules. Subsequently, the as-prepared capsule catalyst can methanolyze rapeseed oil to fatty acid methyl esters (FAME). The capsule breakage after FAME synthesis was calculated to evaluate capsule rigidity, and the concentration of Ca leaching into the FAME phase was determined by ICP. The percentage of Ca dissolved in the FAME phase was also calculated based on the amount of CaO in the capsules. The results showed that the alginate shell (dAlg-T-B capsule sample) modified with BTMS reduced the breakage rate to 2.6%, that is, the modification of BTMS improved the rigidity of the alginate capsule loaded with CaO.
Chemicals Related in the Paper:
| Catalog Number | Product Name | Structure | CAS Number | Price |
|---|---|---|---|---|
| ACM1067578 | N-Butyltrimethoxysilane |  |
1067-57-8 | Price |
