To set apart: Segregate. (Merriam – Webster)
Take temporary possession of someone’s property until they have paid money that is owed or until they have obeyed a court order. (Cambridge Dictionary)
If someone is sequestered somewhere, they are isolated from other people. (Collins Dictionary)
Isolate or hide away. (Oxford Dictionaries)
8 Ways to Sequester Carbon to Avoid Climate Catastrophe.
What the Sequester Means for Science.