High Quality Alumina Combustion Boat for Carbon/Sulfur Analysis

Al2O3 Combustion Boat Applications

•  Analytical Laboratories – Carbon/Sulfur Elemental Analysis

  ✅ Key Advantages

  1. Stable blanks with 99–99.7% alumina, minimizing matrix interaction in C/S workflows.
  2. Dimensional control enables smooth push-rod travel inside combustion tubes, reducing jams or misalignment.
  3. Flat, non-perforated cavity optimizes sample loading and flux distribution for repeatable combustion efficiency.

  ✅ Problem Solved

  A contract testing lab running over 1,200 C/S samples per month reduced rerun rates by 25% after switching to dimensionally consistent alumina combustion boats. Improved baseline stability lowered blank drift, cutting analysis turnaround from 3.5 to 2.7 days on average.

• Fuel & Energy Industry – Ash and Volatile Matter Testing

  ✅ Key Advantages

  1. Thermal stability up to ~1800 °C supports repetitive ash determination cycles without warping.
  2. Rounded lip edges simplify post-ash transfer, minimizing sample loss and improving recovery.
  3. Batch-coded packaging ensures traceability in routine QA workflows for coal and biomass.

  ✅ Problem Solved

  An energy lab conducting daily ash cycles on coal blends faced frequent breakage with porcelain boats. Transitioning to alumina combustion boats extended reuse cycles by 3–4x and reduced chip-related scrap from 8% to below 2%, directly improving cost per analysis.

• Process R&D – Catalyst Burn-Off and Pre-Calcination

  ✅ Key Advantages

  1. Chemically inert alumina body avoids contamination of catalyst carriers during organics removal.
  2. Deep cavity option allows higher sample bed height with uniform gas access, preventing spill.
  3. Smooth internal surface improves residue clean-out, enabling multiple reuse cycles in pilot lines.

  ✅ Problem Solved

  In catalyst development runs, researchers found inconsistent burn-off with quartz boats. By adopting alumina combustion boats, gas-exchange efficiency improved, reducing incomplete burn-off from 12% to under 4%, and pilot throughput increased without extending furnace cycles.

Alumina Oxide Combustion Boats Usage Instructions

• Use

  1. Inspect the boat (edges/flatness) and verify dimensions against the tube and carrier.
  2. Load sample and flux to the specified mass; avoid overfilling above the lip.
  3. Place or push the boat into the hot zone using the appropriate rod or carrier; follow ramp/hold profile.
  4. After the cycle, cool in a protected area before pouring out or weighing.

• Storage

  Keep dry with desiccant; avoid stacking without separators; maintain labelled trays by drawing code and batch.

• Cleaning & Maintenance

  1. Tap out residues once cooled; for adherent films, use light mechanical removal on non-critical faces only.
  2. Do not thermal-shock with liquids; schedule periodic inspection to retire boats showing edge damage.

• Common Misuse & Fixes

  1. Symptom: boat stalls in the tube → Fix: check tube ID vs boat width; increase side clearance or specify tighter width tolerance.
  2. Symptom: excessive chipping at pour-out → Fix: adopt a rounded lip; review tongs contact points.
  3. Symptom: blank drift over time → Fix: move to a higher purity grade and standardize cleaning routine.

Alumina Combustion Boat FAQ

1. Q: Can this product be used in LECO CS analyzers?
   A: Yes. Our alumina boats are compatible with most standard C/S combustion systems, including LECO and ELTRA units.
2. Q: What size tolerance can you maintain?
   A: We maintain ±0.2mm tolerance on all dimensions. For custom requests, a tolerance of ±0.1mm is achievable.
3. Q: Is the combustion boat reusable?
   A: Yes, but reuse depends on contamination severity and cycle count. Typical usage ranges from 20 to 100 cycles.
4. Q: Does the alumina material react with carbon or sulfur?
   A: No. Alumina is chemically inert during the oxidation of C/S analytes and does not interfere with results.
5. What is the safe working temperature for combustion boat alumina?
   Typically 1700–1800 °C depending on purity, atmosphere, load size, and dwell time. For long dwell or reactive atmospheres, specify a safety margin.

What Our Customers Say About Alumina Combustion Boat

• ⭐️⭐️⭐️⭐️⭐️
  “Rounded-lip alumina combustion boats made pour-out safer. After switching, jam events in the tube almost disappeared during our busy weeks.”
  -- Liam R., Lab Supervisor, Northgate QA
• ⭐️⭐️⭐️⭐️⭐️
  “The alumina combustion boat with hole improved burn-off uniformity in dense pellets. Our off-spec rate dropped and repeats decreased across two pilot runs.”
  -- Dr. K. Meyer, Materials R&D, FerroTech
• ⭐️⭐️⭐️⭐️⭐️
  “Bulk cartons arrived with foam lattice trays. Dimensions matched our drawing, and chip-related scrap fell below 2%.”
  -- Sophia Chen, Purchasing, Vector Analytics
• ⭐️⭐️⭐️⭐️⭐️
  “We run ash cycles daily. The 99.5% long alumina combustion boat has held shape and simplified handling with tongs—reliable for routine QA.”
  --Diego A., Lab Manager, Atlantic Fuels