A next-generation process intensification platform engineered to produce drop-in SAF at scale — cleaner, more efficient, and deployable anywhere.
The Problem with Conventional High-Pressure Pumping
Traditional triplex and diaphragm pumps introduce serious maintenance liabilities in SAF production. Mechanical crankshaft side-thrust causes uneven liner wear, dynamic wet-seals degrade under continuous shear, and lubricant migration risks deactivating expensive downstream catalyst beds.
Mechanical Wear
Crankshaft side-thrust causes uneven liner and packing wear, requiring frequent 1,500–3,000 hr overhauls.
Thermal Limits
Conventional pumps degrade above 120°C, requiring oil cooling — incompatible with 230°C SAF processes.
Contamination Risk
Lubricant migration into biogenic feed streams poisons catalyst beds and fails ASTM purity thresholds.
HPDD Core Architecture
Non-Crankshaft Direct Linear Drive
The HPDD platform is built around a direct linear drive — no crankshaft, no angular momentum, no side-loads. Two opposing pairs of 4 pistons work along a shared centerline, canceling dynamic acceleration forces entirely. The result: zero radial side-loads, minimal vibration, and smooth fluid-column pressurization far superior to crank drives.
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HPDD-SAF / Energy & Utilities / Solutions | Hydro Puls Direct Drive (HPDD)
Sustainable Aviation Fuel (SAF) Production via Hydro Puls Direct-Drive (HPDD) 1. Technical Architecture & Process Intensification Conventional high-pressure triplex or diaphragm pumps introduce significant maintenance liabilities: mechanical crankshaft side-thrust causes uneven liner wear, dynamic wet-seals degrade rapidly under continuous shear, and lubricant migration risks deactivating expensive downstream catalyst beds. The HPDD core is engineered around a non-crankshaft, direct linear drive
Key Design Pillars
4-Piston Dynamic Balancing
Self-canceling opposed pairs eliminate vibration into plant pipe-racks.
Isothermal Inconel Core
Both bore and pistons expand identically by 109 µm at 230°C, maintaining a 25 µm micro-gap.
Unpressurized Siloxane Barrier
Inert siloxane fluid fully isolates the hydraulic circuit from the biogenic feed stream — zero lube contamination.
Financial Architecture & Unit Economics
In conventional SAF production, Capex is heavily inflated by multi-stage gas compression trains, multi-story hydrogen recycle loops, and high-frequency pump packing turnarounds. HPDD directly attacks each cost driver.
High-Pressure BOP Capex
Single-stage pulse replaces multi-stage compressor trains: –25% to –35% reduction.
Catalyst Replacement Cost
Zero lube contamination and uniform micro-mixing eliminate coking and oil-trace poisoning.
Parasitic Power Demand
Traditional drivelines lose 10–18% to gearbox friction. HPDD achieves >92% mechanical transfer efficiency.
Net Opex Impact
The combined effect of reduced BOP Capex, eliminated catalyst poisoning, and >92% mechanical efficiency delivers substantial net savings per metric ton of SAF produced versus traditional synthesis routes.
Certification & Regulatory Roadmap
For SAF to enter airport hydrants, it must achieve drop-in qualification under global aviation specifications. HPDD integration is designed to satisfy every compliance gate.
ASTM D7566 (Annexes)
High-conversion hydrocracking selectivity meets distillation curve, freeze point (<-40°C), and flash point for HEFA (A2) and Alcohol-to-Jet (A5) pathways.
ASTM D4054 (Tiers 1–4)
Oil-free / unpressurized siloxane barrier keeps TAN, trace metals, and silicone levels below <0.1 ppm — comfortably under analytical detection limits.
ASTM D1655 / Drop-In Verification
Final blending with conventional Jet A-1 verified for commercial distribution.
ISCC PLUS / RSB / CORSIA / EU RED III
High thermodynamic efficiency and reduced parasitic electrical load cut Scope 1 & 2 emissions, improving LCA scores for EU ReFuelEU Aviation and US IRA 45Z credits.
HPDD-SAF Skid: Internal Architecture
1. Process Headers
Biogenic feed header (HEFA / PtL / AtJ), H₂ injection manifold at +600 bar, and 0-bar siloxane reservoir buffer.
2. HPDD 600-Bar Power Core
Inconel core operating at 230°C with 25 µm micro-gap. Two opposed pairs (4 pistons) dynamically balanced.
3. BOP & Controls
Edge Guard PLC with <5ms deterministic control, closed-loop 230°C thermal stabilizer, and direct drive power distribution module.
Why HPDD-SAF: The Case for Process Intensification
Superior Engineering
4-piston dynamic balancing, Inconel isothermal core at 230°C, and >8,000 hr maintenance intervals outclass every legacy pumping technology.
Compelling Economics
–25% to –35% BOP Capex reduction, >92% mechanical efficiency, and zero catalyst poisoning deliver substantial savings per metric ton of SAF produced.
Regulatory-Ready
Oil-free design and reduced Scope 1 & 2 emissions satisfy ASTM D7566, D4054, ISCC PLUS, CORSIA, EU ReFuelEU Aviation, and US IRA 45Z requirements.
Deploy Anywhere
Standard 20-ft ISO skid, no civil pilings, plug-and-play headers — site directly at feedstock sources for distributed, scalable SAF production.
Sustainable Aviation Fuel (SAF) Production via Hydro Puls Direct-Drive (HPDD)