Yes, you can perform silent uninstall through the RevoUninPro executable file. This feature is only available in the PRO version. There is no such file or item in the free version of Revo Uninstaller.
Support page: http://www.revouninstaller.com/online_manual/8_command_line_support.html
Here is the full command support for silent uninstall:
RevoUninPro /mu "Program name" /path "Full program path" /mode "uninstall mode" /32
where the parameters are:
/mu - "Exact program name as it is listed in Revo Uninstaller Pro"
/path - "Full path to the program's installation folder". Program's path must not finish with backslash
/mode - mode of the uninstall - Safe, Moderate, or Advanced
/32 or /64 - depending if the program is 32 bit or 64 bit