Solids Are a Design Variable, Not a Nuisance

For those of you working in fuel processing, refining, renewable diesel, NGL recovery, or thermal systems, this is straightforward:

Unmanaged solids reduce system reliability.

I work with GN Solids USA, where we design and supply industrial separation equipment. What we see repeatedly across fuel-related operations is that solids are often treated as a maintenance issue rather than a design parameter.

They should be treated as a design parameter.

In fuel processing environments, solids contribute to:
Abrasive wear in pumps and heat exchangers
Fouling in fractionation and separation columns
Reduced burner efficiency
Plugging in transfer lines
Increased downtime and maintenance intervals

Whether the feedstock is conventional hydrocarbons, renewable diesel input, UCO, slop oil, or tank bottoms, the system behaves as a fluid–solid mixture.

Ignoring the solids fraction shifts cost downstream.

Decanter centrifuges, fine screening systems, and polishing separation stages allow you to:
Reduce solids loading before thermal processes
Protect rotating equipment
Stabilize product quality
Extend service intervals

This is not theoretical. It is mechanical reality.

Fuel systems are already operating under tighter margins (emissions, efficiency, throughput, and maintenance budgets). Separation performance directly affects those margins.

If any of you are evaluating system upgrades or troubleshooting wear and fouling issues, I am open to discussing how solids control can be modeled earlier in the process rather than patched later.