FAQ

These FAQs are a selection of the commonly asked questions we receive from our customers and prospects. The answers will provide you with a better understanding of Stamicarbon, our urea technologies, solutions and our urea licenses.

    • Since 1947 Stamicarbon has successfully installed more than 250 urea grassroot projects. 

    • A urea plant is typically as part of a fertilizer complex. To be able to produce urea ammonia and carbon dioxide are needed besided the standard utilities as feedstock. The ammonia and carbondioxide are typicall delivered from the adjacent ammonia plant. A urea plant is often build as part of an ammonia-urea complex. Urea can be delivered at various forms such as prilled product, granulated product, pastilles and in various liquid formulas amongst others DEF, AdBlue etc.

    • The indication of the OPEX producing urea can be calculated using our OPEX calculator.

    • The urea plant needs ammonia and carbon dioxide to produce urea. The urea process does not produce any byproducts besides water. The purity of water produce is of such quality that is can be reused as boiler feed water or as cooling water make up.

    • STAMICARBON is very experienced and reputed for its urea inspection services; we perform many inspection annually on a global base. Please contact us for more details.

    • Yes, all STAMICARBON services are available for all urea producers, so also non-STAMICARBON end users.

    • STAMICARBON is the sole provider of Safurex equipment. (SAFUREX Equipment = proprietary equipment). You can simply contact STAMICARBON with you need and we will contact you with information on the best available solution for you using SAFUREX.

    • Preventing corrosion is almost impossible. Instead, preventing active corrosion and having controlled passive corrosion, in the most economical way, is offered by STAMICARBON. The following factors play an important role here: equipment design, equipment quality during manufacturing, selected corrosion resistance material, operation of the urea plant. Only if all these factors are under control, active corrosion is minimized/prevented.  For the synthesis section we developed SAFUREX material- being the most competitive available material for the high pressure synthesis section equipment.  
      Contact Stamicarbon to help advise on how you can control your corrosion.

    • Yes, you probably can, namely by improving the urea conversion in the synthesis (one can increase production and reduce energy consumption) and/or lowering the down time of the urea plant.

    • Stamicarbon does not approve the use of flare systems to eliminate the continuous off-gases from urea melt plants. The reason for this is that flares give rise to uncontrolled NOx emissions, which significantly increases the environmental load  in comparison with the available alternatives. Examples for zero and low ammonia emission are the Advance Treatment and the Advance Acidic Scrubbing technology with guaranteed ammonia emissions.

    • Stamicarbon offers lifecycle support that enables you to keep your plant and personnel up to date with the newest insights, technology and equipment. We offer a range of activities and services that provide support for your plant over its entire operating life, covering operation, maintenance and advancement, including debottlenecking. Added to that we can undertake inspection of critical equipment, renew equipment to the latest designs, offer advanced process control and optimization solutions, along with staff training for operation and maintenance of specific urea equipment.

    • Stamicarbon has revamped till date more than 100 plants varying from very complex (doubling capacity) to simple additions (DEF) and upgrades (waste water purification) emission and energy reduction revamps.

    • Stamicarbon owns in depth knowledge of the urea production process not limited to the designs typically applied by Stamicarbon. Stamicarbon has used its knowledge to also upgrade and revamp various urea plants of non Stamicarbon technology. We will share the references with customers if requested.

    • Stamicarbon is known to have the best reputation as a licensor of urea technology. This is mainly due to our excellent track record with respect to meeting guarantees. Meeting the guarantees is in our DNA and the main differentiator for other licensors. As revamps are more challenging with respect to guarantees involving Stamicarbon is a means to secure the rate of return of investments.

    • Stamicarbon's tailor made approach is not only aimed at minimizing OPEX and CAPEX figures but also takes into account the alignment with the current plant (tie-ins and TA planning). Based upon decades of experiences our revamp designs are aimed to minimize the production time lost to implement the upgrade/revamp.

    • For bigger capacity revamps Stamicarbon works closely together with its licensed contractors.

    • Yes: reducing the environmental load of the urea melt and granulation plant is of utmost relevance and one of the highlights of our technology development. The focus is on ammonia vapor and urea particulate emissions. For both substances Stamicarbon has available emission reduction technologies that are designed to be the best practice of the future. For ammonia emission reduction Advance Treatment can offer zero ammonia emission from the urea melt plant, while our MMV scrubber can reduce the emission of urea dust particulate from the granulation to the lowest in the world. All technologies are available for new and existing urea plants and are often also available for non-Stamicarbon urea plants.

      1. With more feedstock (then you need most probably new/larger equipment).  
      2. With the same feedstock, you will need to improve the urea conversion. Depending on the current situation, STAMICARBON can propose solution(s).
    • In urea melt plants: better urea conversion can lead to more urea with same supply of feedstock and it also leads to less energy consumption.   In urea finishing plants: less down time by improving process design. Less down time means more output and less maintenance/inspection/repair costs. Reliability is the key word. Applying SAFUREX and/or STAMICARBON process solutions in your melt and/or finishing section can already lead to a substantial less OPEX.

    • Yes, you probably can, namely by improving the urea conversion in the synthesis (one can increase production and reduce energy consumption) and/or lowering the down time of the urea plant.

    • In fact due to our superior design the greatest benefits can be obtained revamping non Stamicarbon plants.

Can't find an answer?