Hindered diffusion of coal liquids. Quarterly report No. 1, September 18, 1992--December 17, 1992
- University of Southern California, Los Angeles, CA (United States). Dept. of Chemical Engineering
- Unocal Corp., Los Angeles, CA (United States)
The molecules comprising coal liquids can range from less than 10 to several hundred {angstrom} in diameter. Their size is, therefore, comparable to the average pore size of most hydroprocessing catalysts. Thus, during processing, transport of these molecules into the catalyst occurs mainly by ``configurational`` or ``hindered diffusion,`` which is the result of two phenomena occurring in the pores; the distribution of solute molecules in the pores is affected by the pores and the solute molecules experience an increased hydrodynamic drag. The field of hindered diffusion has been reviewed by Deen [16]. The earliest studies in the filed were by Renkin et al. [17].
- Research Organization:
- University of Southern California, Los Angeles, CA (United States). Dept. of Chemical Engineering
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-92PC92527
- OSTI ID:
- 10128804
- Report Number(s):
- DOE/PC/92527-T1; ON: DE93008533
- Resource Relation:
- Other Information: PBD: [1992]
- Country of Publication:
- United States
- Language:
- English
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