While it would be possible to set up a fuel processor on a Type C, D or E port, there are a bundle of reasons why this may not be the case:
* On a desert, fluid ocean or vacuum world, there may not be any water or other suitable resource to process - any Type D or better port on such a world is probably bringing in hydrogen from elsewhere in the system or from outsystem. If the facility is rated E, this must be either impractical or too expensive.
* On a world with oceans and/or a near gas giant there may be no market.
* The world may be a genuine backwater and not see enough shipping to make it worth doing. Especially if the local tech level or population is too low to support any sort of facility. Cr50,000 might represent several years or decades of economic surplus on a truly marginal world.
* Maybe they DO have a fuel unit, but there's a contract to only supply it to Captain Smith. Or Oberlindes Lines have purchased a monopoly on hydrogen sales.
* Local custom or law that prohibits or limits contact with the evil offworlders (this is more of a class X issue).
* They have one, but Vargr raiders keep stealing their supply. Could you perhaps help with the matter?
The universe is infintely strange, and I'd rather work out a reason why things are (or appear) to be the case than to just try to force everything to be standard.
Edit: Another one ocurred to me - if the ships serving that world already have fuel processors there may be no market for refined fuel. As you say, it's a cheap component, and most of the expected standard ships (Free and Far Trader, Scout, Subsidised Merchant) already have them.
* On a desert, fluid ocean or vacuum world, there may not be any water or other suitable resource to process - any Type D or better port on such a world is probably bringing in hydrogen from elsewhere in the system or from outsystem. If the facility is rated E, this must be either impractical or too expensive.
* On a world with oceans and/or a near gas giant there may be no market.
* The world may be a genuine backwater and not see enough shipping to make it worth doing. Especially if the local tech level or population is too low to support any sort of facility. Cr50,000 might represent several years or decades of economic surplus on a truly marginal world.
* Maybe they DO have a fuel unit, but there's a contract to only supply it to Captain Smith. Or Oberlindes Lines have purchased a monopoly on hydrogen sales.
* Local custom or law that prohibits or limits contact with the evil offworlders (this is more of a class X issue).
* They have one, but Vargr raiders keep stealing their supply. Could you perhaps help with the matter?
The universe is infintely strange, and I'd rather work out a reason why things are (or appear) to be the case than to just try to force everything to be standard.
Edit: Another one ocurred to me - if the ships serving that world already have fuel processors there may be no market for refined fuel. As you say, it's a cheap component, and most of the expected standard ships (Free and Far Trader, Scout, Subsidised Merchant) already have them.