TECHNOLOGIES

Process technology for the fertiliser and chemical industries

The processes we license as our own, and the wider set we engineer, revamp and integrate. This page is the map.

TECHNOLOGY MAP

What we license, and what we engineer

The distinction matters on every project, so we make it first.

Licensed by ARCET

Process design developed and owned in-house. The licence, the engineering and the plant support come from the same team.

Engineered and integrated

Process design, plant engineering and the work of fitting a new unit into an existing complex. We do not license these processes.

Ammonia and ureaRevamp, debottlenecking and root-cause work on existing units.
Phosphoric acidRock characteristics drive filtration, gypsum handling and by-products.
Potassium nitrateRoute and finishing follow the grade and the market.

Across every project: catalysts and emissions control, basic and detailed engineering, procurement support, commissioning and long-term plant support.

OUR OWN PROCESS TECHNOLOGY

Nitric acid and ammonium nitrate

These two are where our technology goes deepest. The process design is developed and owned in-house, which means the licence, the engineering and the plant support come from the same people — and that the design can be moved to fit your feedstock, your energy prices and your emissions limit rather than a standard package.

Nitric Acid Plants

  • High-pressure and medium-pressure configurations, selected from your cost structure rather than our preference
  • Heat recovery, tail-gas expansion and steam export designed as one balance
  • Secondary and tertiary N₂O and NOx abatement matched to the permit you have to meet
  • Licence, basic and detailed engineering, commissioning and long-term support

Nitric acid plants

Ammonium Nitrate Plants

  • LDAN and HDAN, plus AN solution, from the same neutralisation and evaporation line
  • Neutralisation heat recovered as process steam — the decision that sets the energy bill
  • Prilling or granulation, chosen from the product and the market rather than the budget alone
  • Designed next to an ARCET nitric acid plant or alongside an existing one

Ammonium nitrate plants

ENGINEERING SCOPE

What we engineer rather than license

On these three our role is engineering and integration, not licensing: process design, plant engineering and the work of making a new unit fit an existing complex. We say which is which on every project, and we do not present engineering scope as technology ownership.

Ammonia and urea

Revamp, debottlenecking and root-cause work on existing units. Engineers in our team have spent years operating them. We do not license these processes.

Phosphoric acid

Rock characteristics drive the design — filtration, gypsum handling and by-product management follow from them.

Potassium nitrate

Route and finishing follow the grade and the market. Calcium and magnesium nitrate are licensed processes of ours and are covered above.

Every process we license now has its own page, reachable from the map above. Phosphoric acid and potassium nitrate are covered on the combined page below.

Fertiliser and acid processes

AROUND THE PROCESS

The parts that decide how a plant actually runs

Catalysts and emissions control

  • Ammonia oxidation gauze packs and catchment systems
  • Secondary and tertiary N₂O and NOx abatement — DeN₂O and DeNOx systems
  • Supplied for plants of any origin, not only ours

Catalysts and emissions

Engineering and plant services

  • Revamps, debottlenecking and energy retrofits
  • Second-hand plant relocation and refurbishment
  • Commissioning, start-up and plant support

Engineering services

HOW AN ENQUIRY STARTS

Three situations, three different first conversations

A new plant

Send target capacity, feedstock and its price, power price and the emissions limit. We come back with a configuration and an energy balance.

An integrated complex

Tell us which units already exist and what they can give or take — steam, acid, power. Integration is where most of the value is won or lost.

An existing plant

Send current rates and consumptions rather than the nameplate, plus the constraint you are up against.

TALK TO THE ENGINEERS

Not sure which of these fits?

Describe the plant you have in mind or the problem you are trying to solve. The reply comes from the people who would do the work, and it will tell you honestly whether this is something we should be doing.

Discuss your project