Create a SocksPort with fix circuit/greater MaxCircuitDirtiness

For all my applications I am happy with the 10 min MaxCircuitDirtiness - it shall not change. But there is one application that needs the same IP for multiple requests (more than 10 min apart).

I thought I could generate a new SocksPort for that specific purpose but I would need to adapt the MaxCircuitDirtiness for that Port only. Is that possible or is there an alternative?