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Chemicals

Chemicals

Ammonia, methanol, mineral fertilisers and polymers. Critical pump-and-compressor trains, reactors and columns – diagnostics and APC across the whole loop.

Strongest combination
Vibration + Current + APC

This mix delivers the most on the industry's key process stages. Details in the cards below.

Key equipment
CompressorsCirculation pumpsColumnsReactorsGranulatorsDrum dryersBlowers
How it works

Monitored machines — interactive

Pumps, compressors, blowers — continuous production does not forgive sudden stops. Vibration on bearings + current from the cabinet: safe, with no shutdown.

3D Spin the models — measurement points are marked
3D model of a pump set: motor, coupling, centrifugal pump with a volute cutaway
drag to rotate · scroll to zoom
Where it appears
CentrifugalMeteringCirculation
Where we look — click
Effect: Seals, cavitation, bearings — before a leak or a line stop.
Signal chain From sensor to diagnosis
Vibration diagnostics
Passer-V + FFT/envelope on Larus
Current diagnostics
Passer-T + motor current signature analysis (MCSA)
APC optimisation
Strix platform + soft sensors + predictive control loops
Computer vision
Cameras + Strix CV apps on Larus-1000
By process stage

Where Liman-Tech applies — stage by stage

For each stage: the equipment worth monitoring and what each method delivers. No fluff.

1

Ammonia, nitric acid, fertilisers (NPK)

Equipment
Syngas compressor trains, reforming furnaces, absorption columns, circulation pumps, granulators, drum dryers
Vibro Compressors (one of the most critical machines on an NH3 plant), circulation pumps, granulators, dryers
Current Motors on compressor trains, pumps, agitators, granulators
APC H2:N2 ratio, catalyst-bed temperatures, pressure, feed rate, absorption regimes, granule quality
Effect: Protection for the compressors — the most expensive failure on the plant; a stable synthesis and granulation regime
2

Methanol and alcohols

Equipment
Syngas compressors, reactors, separation columns, pumps, heat exchangers
Vibro Compressors, circulation and flash pumps, auxiliary drives
Current Compressor and pump motors
APC Reactor temperature regime, recompression, product draw-off, heat balance
Effect: +1–3% yield of target products when APC stabilises the regime (benchmark)
3

Polymer production

Equipment
Polymerisation reactors, agitators, extruders, granulators, dryers, dosing systems
Vibro Agitators, extruders (main drive and feed screws), granulators
Current Motors on agitators, extruders, granulators
APC Reaction temperature, initiator and component dosing, extrusion rate, pressure, cooling
Effect: Less scrap, stable quality, higher first-pass yield
4

Tailings and plant-wide utilities

Equipment
Effluent treatment, recirculating water, flare systems, compressor stations, boiler houses
Vibro All critical rotating machines
Current Motors on pumps, compressors, fans
APC Energy management, water recirculation, emissions minimisation
Effect: A reliable plant-wide loop, lower energy consumption
Strongest combinations

Where combined methods multiply the effect

Syngas compressors (NH3 / methanol)
Vibration + Current
One of the most likely and most expensive failures — we protect it first.
Reactors and columns
Current + APC
Polymerisation and extrusion
Vibration + Current + APC
Granulation and drying
Vibration + Current + APC
What we offer

Three rollout levels — pick by maturity

Level 1

Compressor protection

NH3 / methanol compressor trains

Stack
Passer-V (8 channels per train: thrust, journal, coupling, gearbox) + Larus-100 with a bearing-frequency library
Level 2

Plant transparency

Balance KPIs, alarms, per-asset trends

Stack
Strix
Level 3

Regime optimisation

Reactors, columns, granulation

Stack
Strix APC — quality soft sensors, predictive loops, reagent-consumption models

Results in numbers

  • +1–3% on feedstock and target-fraction yield under APC control
  • −1–4% specific energy per unit
  • 3–9 months — typical payback on APC loops
  • Early detection of compressor and pump defects – 2–6 months before failure

Industry benchmarks; the actual effect depends on a site assessment at your facility.

Confirmed case: process control for the main stages of the ANOF-3 mineral-processing plant (PhosAgro / Apatit) – the grinding-and-flotation section and the filtration-and-drying production, 2016.

Adjacent process stage – Oil, gas and refining: gas fractionation, pyrolysis, polymer production.

How to buy

Three commercial models

From outright purchase to a service model where you pay out of verified savings.

CAPEX — purchase

You own the hardware and software — the full effect is yours. Transparent and familiar; for critical infrastructure it is the only option.

MaaS — subscription

Monitoring-as-a-Service: 36 months, a monthly base fee plus a share of the verified effect. The performance risk is ours — no effect, nothing beyond the base.

ESCO — energy performance contract

Energy-saving measures with no capital outlay on your side: we invest, repayment comes out of verified savings.

One minute

Find out where to start at your plant

Compressors, circulation pumps, granulators, blowers — tick what hurts and a manager comes back with specifics: which machines to monitor and how big the pilot should be.

  • We match the method mix to your equipment
  • We size the pilot and give you ballpark figures
  • We reply within one business day
1. What hurts right now (pick any)
2. Scale