Safely removing SMD capacitors can be a little bit tricky. Keeping the pads on the PCB is the most important thing to concider. So PCB damage need to be kept to a minimum. There are a few methods that you can try. Depending on if you need to save the old capacitor or dont mind it being destroyed. Other methods require particular equipment so may not be accessable to you. Here they are so you can chose which might be the best for you.