| 학회 | 한국공업화학회 |
| 학술대회 | 2014년 가을 (11/12 ~ 11/14, 엑스코(대구)) |
| 권호 | 18권 2호 |
| 발표분야 | 무기재료-포스터 |
| 제목 | Preparation of silica membranes derived by tetraethoxydimethyl disiloxane for purification of C5 fractions |
| 초록 | Generally, amorphous silica membranes were prepared with tetraethylorthosilicate (TEOS) by chemical vapor deposition and sol-gel method. TEOS-derived silica membranes is appropriate for the separation of small size of molecules with relatively low permeation. Recently, "Spacer technique" was proposed with a bridged alkoxide, which is one of the structured alkoxides and consists of organic functional groups between two silicon atoms. In this study, 1,1,3,3-tetraethoxy-1,3-dimethyl disiloxane (TEDMDS) was used for purification of dicyclopentadiene (DCPD) in C5 fractions from petroleum industry. TEDMDS-derived silica sol was synthesized by hydrolysis and condensation under acetic acid catalyst system at 60oC for 24 hours. TEDMDS-derived silica membrane was coated on the modified α-alumina support, followed by firing at 300-450oC in air atmosphere. The pervaporation of mixtures of DCDP/CP (90wt%/10wt%) was investigated at 50oC. |
| 저자 | 이혜련, 서봉국 |
| 소속 | 한국화학(연) |
| 키워드 | silica membrane; tetraethoxydimethyl disiloxane; pervaporation; dicyclopentadiene (DCPD); C5 fraction |
