Case Study: Recovering 43M kg of Condensate and Improving Heater Stability at Helwan Fertilizer Company (HFC)
Helwan Fertilizer Company (HFC) is a leading fertilizer manufacturer in Egypt. At their plant in Helwan, uptime, thermal stability, and safe operations directly influence throughput and cost.
HFC’s new condensate recovery system helped them recover 90% of the condensate previously dumped to drain and stabilize multiple production-critical heat exchangers.
Results at a glance
- Condensate recovered: 43M kg (90% of previously dumped condensate)
- Annual water savings, including chemicals: ~USD 42,000
- Annual steam production cost savings: ~USD 108,000
- Total annual savings: ~USD 150,000
The Challenge
A critical heating system was unstable and inefficient as condensate flow was restricted due to low internal pressure, and the stalled condensate had to be dumped to drain.
Flow restriction
In HFC’s granulation process, the air pre-heater/heater system experienced instability linked to condensate handling. To keep production stable, operators resorted to draining condensate to the drain instead of recovering it.
- Energy waste: Condensate (and its recoverable heat) was lost instead of being returned to the condensate tank.
- Manual intervention: Operators repeatedly opened/closed valves to maintain required heating.
- Operational risk: Temperature drops at the heat exchanger could threaten process stability.
Scale and business impact
Three air pre-heaters in the granulation unit of the plant were affected by this issue. This had been a constant pain point for years, not just at HFC but across industries in Egypt.
Because the system was described as critical for the production process, a heating failure could trigger production losses of millions of dollars per day.
The Approach
Decision criteria: stabilize heating without adding downtime risk
HFC needed a solution that could:
- Eliminate condensate dumping and recover condensate back to the condensate system
- Reduce frequent manual intervention by operators
- Protect production stability in a sensitive, high-consequence area
- Be installed and commissioned while the plant was running (to avoid costly downtime)
- Reduce heat and water wastage and lower production cost
Overcoming adoption barriers
A key blocker was operational confidence. Operators and engineers were concerned that changes to a sensitive heater system could create new issues or disrupt production.
Diverse Supplies addressed this with an engineering-first approach:
- Engineering calculations
- Written engineering-based reports
- Gradual stakeholder buy-in—especially from the energy team
The Solution
Condensate recovery using a steam-motive mechanical pump skid
Diverse Supplies implemented an Armstrong condensate recovery approach using a mechanical pump skid:
- A receiver collects condensate from all heaters
- Two steam-motive pumps recover the condensate back to the condensate tank
- Recovered hot condensate is reused rather than being dumped to drain
- Scalable system design allows more heaters to be connected in future
Before
A visible line/valve draining condensate to drain
After
Discharge stopped; condensate routed to receiver and recovered
Implementation
Project phases
The project included:
- Early site observations
- Evaluation of solution approaches
- System redesign
- Procurement
- Installation
- Commissioning
- Performance monitoring and support
Commissioning in live operating environment: complexity and safety
A major complexity was that the upgrade had to be installed and commissioned while the plant was running, requiring careful planning, increased coordination, safety requirements, and risk management.
Results
- Full condensate recovery, wastage eliminated. 90% of condensate (~43M kg/year) was saved from being dumped to drain.
- Improved stability with steam operating pressure reduced from 9 bar to 4 bar due by elimination of stall condition in winter
- Significant annual savings from returning hot condensate
~USD 108,000/year steam production savings from high pressure steam in turbine
~USD 42,000/year water savings due to recovered condensate. - Reduced operator intervention
- Payback period of just 3 months.
Why it worked
- Engineered for a sensitive process: Designed around stability first, not just energy recovery.
- Long term, scalable solution design: High reliability mechanical solution
- Reduced reliance on manual balancing and mitigated condensate handling issues.
- Stakeholder buy-in and adoption: Project team gained stakeholder trust though meticulous calculations and reporting
- Executed live without shutdown: Careful step-by-step implementation protected production continuity.
Diverse Supplies Project Lead:
Amr Badawi, Technical Sales Team Lead
HFC Project Owner:
Khaled Mubarak, Energy Management Department Director
Have a similar issue at your plant?
Request a condensate recovery assessment to identify where dumping, venting, or unstable condensate handling is costing energy, water, and uptime.
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