From a single account, one is rate-limited in how many votes can be cast per day (depending on privilege level for some vote types). Similarly, there is a rate-limit on how many reviews can be performed in the review queues. An active curator may have the time, energy, and inclination to review enough posts that they run into these rate-limits somewhat regularly.
While creating a sock puppet account for the purposes of voting on one's own content is strictly prohibited, it's not clear to me whether it's prohibited to create a sock puppet to get around these rate-limits on voting for the purposes of curation.
I understand that the sock puppet can't vote on the same posts as the primary account, but this could be ensured manually, or with a userscript. Also, the sock puppet would need to reach around 3k, without any help from the primary account, in order to cast close/reopen votes, but this could reasonably be achieved in 6 to 8 weeks.
It seems ok to me, but it is technically doing something that is not possible from a single account (and is the point, in fact), so I'm not sure if there's something that I'm missing here that makes this a problem. Reading through How should sockpuppets be handled on Stack Exchange? this case is neither mentioned in the list of things that are allowed, nor in the list of things that are disallowed. Of course, neither of those lists are meant to be exhaustive.
So, is it acceptable to create a sock puppet for the purposes of increasing the amount of curation one can do?