Process design & simulation
Steady-state and dynamic models in Aspen HYSYS and Aspen Plus, heat & material balances, pinch analysis and equipment sizing.
Chemical & process engineering · Gulf Coast, USA
Process designthat scales.
Revamps withoutthe downtime.
Safety,by design.
From benchto plant.
Since 1998 · Houston, Texas
We are 142 chemical engineers who turn molecules, mass balances and P&IDs into plants that start up on schedule — and stay safe for the next forty years.
Owner's engineer for Gulf Coast refiners, olefins producers and specialty chemical makers. We run the simulation, chair the safety study and stay through commissioning.
- PE-licensed engineers
- 61
- Units revamped
- 380+
- States licensed
- 14
Capabilities
Six disciplines,one accountable team.
FEED & detailed engineering
PFDs, P&IDs to ISA-5.1, datasheets, line lists and Class 3 estimates (AACE 18R-97) that survive the EPC handover.
Process safety
PSM compliance under OSHA 1910.119, PHA revalidation and relief system design. Our HAZOP facilitators assign SIL ratings to every node.
Debottlenecking
Column hydraulics, exchanger rerates and H2SO4 alkylation revamps — 42 MMBTU/hr of recovered duty and 3.1 Btu/h per bbl saved at our last Texas City job.
Mechanical integrity
Fitness-for-service to API 579, corrosion loops and pressure vessel design to API 650 for new and rerated equipment.
Decarbonization
CCUS front-end studies, blue hydrogen and ammonia, electrified heaters and 45Q-ready CO2 capture basis of design.
How a revamp flows
Read the plantlike we do.
A simplified hydrotreater loop. Hover or tap any equipment tag to see its design case. This is the same way we walk owners through a FEED package.
| Stream | Description | Temp | Pressure | Flow | Phase |
|---|---|---|---|---|---|
| 1 | Fresh feed | 120 F | 45 psi | 148,500 lb/h | Liquid |
| 2 | Charge to E-101 | 125 F | 1,050 psi | 148,500 lb/h | Liquid |
| 3 | Heater outlet | 650 F | 985 psi | 161,200 lb/h | Mixed |
| 4 | H2-rich gas | 115 F | 235 psi | 9,850 lb/h | Vapor |
| 5 | ULSD product | 110 F | 65 psi | 142,300 lb/h | Liquid |
Free engineering tool
Pipe-flowquick check.
Reynolds number and flow regime for a liquid line. Handy for checking a line list before the hydraulics model runs.
Re = ρ · v · D / μ
Field
proven
26years on the Gulf Coast
0.21TRIR, 2025
1.9billion USD of capex engineered
97%on-time FEED delivery
Bench → pilot → plant
Scale-up is adiscipline, not a guess.
Selected Gulf Coast work
Alkylation unit revamp
+18% alkylate yield, same plot space, a 21-day turnaround.
Ethylene cracker debottleneck
Furnace coil and quench tower rerate for +12% throughput.
Hydrotreater FEED
ULSD revamp with a new reactor and an 1,100 psig recycle compressor.
Terminal vapor recovery
Marine loading VCU sized for 40 CFR 63 Subpart Y.
PSM program rebuild
212-node PHA revalidation and a relief study across 1,480 PSVs.
01 / 05
Request a proposal
Tell us aboutthe unit.
A principal engineer replies within one business day. NDAs are signed before any P&IDs change hands.