The short answer to your question is YES. Depending on your body habitus as well as your wants desires and goals, liposuction can be a safe procedure that can provide satisfying results. You should have a consultation with a board certified plastic surgeon to discuss your options. Good luck!
Aggressive liposuction under local anesthesia can remove more than 5 liters of fat safely. It depends on the amount of fat, the body areas treated and degree of loose skin. Removing 6-7 liters of fat is entirely impossible in a 100kg patient.