Comparison Guide
SORBONORIT Solvent Recovery Carbon Alternatives: Grade & Replacement Guide
Norit's SORBONORIT line — spanning SORBONORIT 3, 4, B3, B4, BX3, BX4, K3, K4, K4S, KB3, KB4 and X4 — has long been a reference range for solvent recovery and gas-phase VOC adsorption. These steam-activated extruded carbons are engineered for high working capacity and regeneration durability. But premium brand positioning means premium pricing. The HojeeVapor BP60 (primary) and HojeeVapor BP50 (secondary) are coal-based extruded pellets available in the same Φ3 / 4 mm diameters, factory-direct from China — offering a practical, cost-effective alternative for the same gas-phase duties. This guide maps the SORBONORIT grades, cross-references the ones we can specify with confidence, notes the differences honestly, and tells you where a pilot test is the right next step.
1. SORBONORIT Grade Map — What Each Model Is
Understanding the SORBONORIT naming convention is the first step to finding the right alternative. Across the range the trailing number is the nominal pellet diameter (3 = ~3 mm, 4 = ~4 mm), and letter prefixes such as B, BX, K, KB and X denote different sub-grades within the family. We publish typical figures only for the four grades where reliable public data exists (SORBONORIT 3, 4, B3, B4). For the remaining grades we confirm the model but supply exact specifications on request rather than estimate them.
| SORBONORIT Grade | Diameter | Raw Material | Iodine No. (typical) | BET Surface Area | Bulk Density | Primary Use |
|---|---|---|---|---|---|---|
| SORBONORIT 3 | 3 mm | Peat | ≥ 900 mg/g | ~1,100 m²/g | ~420–480 kg/m³ | Solvent recovery, VOC |
| SORBONORIT 4 | 4 mm | Peat | ≥ 900 mg/g | ~1,100–1,400 m²/g | ~420–480 kg/m³ | Solvent recovery, VOC |
| SORBONORIT B3 | 3 mm | Peat | ≥ 1,050 mg/g | ~1,200–1,500 m²/g | ~380–440 kg/m³ | High-performance recovery |
| SORBONORIT B4 | 4 mm | Peat | ≥ 1,050 mg/g | ~1,200–1,500 m²/g | ~380–440 kg/m³ | High-performance recovery |
| SORBONORIT BX3 | ~3 mm | Peat | Grade confirmed — full specs on request | Solvent recovery, VOC | ||
| SORBONORIT BX4 | ~4 mm | Peat | Grade confirmed — full specs on request | Solvent recovery, VOC | ||
| SORBONORIT K3 | ~3 mm | Peat | Grade confirmed — full specs on request | Solvent recovery | ||
| SORBONORIT K4 | ~4 mm | Peat | Grade confirmed — full specs on request | Solvent recovery | ||
| SORBONORIT K4S | ~4 mm | Peat | Grade confirmed — full specs on request | Solvent recovery | ||
| SORBONORIT KB3 | ~3 mm | Peat | Grade confirmed — full specs on request | Solvent recovery | ||
| SORBONORIT KB4 | ~4 mm | Peat | Grade confirmed — full specs on request | Solvent recovery | ||
| SORBONORIT X4 | ~4 mm | Peat | Grade confirmed — full specs on request | Solvent recovery, VOC | ||
Typical figures for SORBONORIT 3, 4, B3 and B4 are drawn from published technical literature; ball-pan hardness for these grades is reported as ≥ 98–99%. For SORBONORIT BX3, BX4, K3, K4, K4S, KB3, KB4 and X4 we confirm the grade exists in the range but do not publish estimated parameters — request the current manufacturer datasheet or ask us for a matched HojeeVapor specification.
2. Cross-Reference Table — SORBONORIT → HojeeVapor
The table below maps each SORBONORIT grade to its HojeeVapor alternative by diameter. BP60 is the primary match (widest diameter and CTC range); BP50 is the secondary option for higher-activity duties where CTC ≥ 50% is the baseline requirement. For grades where we do not publish full specs, we match on diameter and then confirm the exact CTC / iodine target against your current datasheet before quoting.
| SORBONORIT Grade | Diameter | HojeeVapor Alternative | Match Diameter | Notes |
|---|---|---|---|---|
| SORBONORIT 3 | 3 mm | BP60 (Φ3.0 mm) | ✅ Φ3 mm | Select CTC grade to match |
| SORBONORIT 4 | 4 mm | BP60 (Φ4.0 mm) | ✅ Φ4 mm | Most popular size globally |
| SORBONORIT B3 | 3 mm | BP50 (Φ3.0 mm) | ✅ Φ3 mm | CTC ≥ 50%, iodine ≥ 900 |
| SORBONORIT B4 | 4 mm | BP50 (Φ4.0 mm) | ✅ Φ4 mm | CTC ≥ 50%, iodine ≥ 900 |
| SORBONORIT BX3 | ~3 mm | BP60 / BP50 (Φ3.0 mm) | ✅ Φ3 mm | Confirm CTC / iodine target on quote |
| SORBONORIT BX4 | ~4 mm | BP60 / BP50 (Φ4.0 mm) | ✅ Φ4 mm | Confirm CTC / iodine target on quote |
| SORBONORIT K3 | ~3 mm | BP60 / BP50 (Φ3.0 mm) | ✅ Φ3 mm | Confirm CTC / iodine target on quote |
| SORBONORIT K4 | ~4 mm | BP60 / BP50 (Φ4.0 mm) | ✅ Φ4 mm | Confirm CTC / iodine target on quote |
| SORBONORIT K4S | ~4 mm | BP60 / BP50 (Φ4.0 mm) | ✅ Φ4 mm | Confirm CTC / iodine target on quote |
| SORBONORIT KB3 | ~3 mm | BP60 / BP50 (Φ3.0 mm) | ✅ Φ3 mm | Confirm CTC / iodine target on quote |
| SORBONORIT KB4 | ~4 mm | BP60 / BP50 (Φ4.0 mm) | ✅ Φ4 mm | Confirm CTC / iodine target on quote |
| SORBONORIT X4 | ~4 mm | BP60 / BP50 (Φ4.0 mm) | ✅ Φ4 mm | Confirm CTC / iodine target on quote |
3. Head-to-Head Specification Comparison
Below is a parameter-by-parameter comparison. SORBONORIT figures are typical values compiled from published technical literature (not a current manufacturer datasheet, which was not publicly accessible at the time of writing); HojeeVapor data comes from our published product pages. Where exact comparison isn't possible due to different test methods or missing data, we say so explicitly.
| Parameter | SORBONORIT 3 / 4 | SORBONORIT B3 / B4 | HojeeVapor BP60 | HojeeVapor BP50 |
|---|---|---|---|---|
| Raw material | Peat | Peat | Anthracite / bituminous coal | Bituminous coal |
| Form | Extruded pellet | Extruded pellet | Extruded pellet | Extruded columnar |
| Diameter | 3 / 4 mm | 3 / 4 mm | Φ0.9–5.0 mm | Φ3 / 4 / 5 mm |
| Iodine number | ≥ 900 mg/g | ≥ 1,050 mg/g | 400–1,000 mg/g | ≥ 900 mg/g |
| CTC (CCl₄) | ~50–60% | ~60–70% | 30–100% | ≥ 50% |
| BET surface area | ~1,100 m²/g | ~1,200–1,500 m²/g | Not published | Not published |
| Hardness | ≥ 98% (Ball Pan) | ≥ 98% (Ball Pan) | > 95% | ≥ 95% |
| Ash content | ~9% | ~9% | < 12% | ≤ 12% |
| Moisture | ≤ 5% | ≤ 5% | < 3% | < 3% |
| Bulk density | ~420–480 kg/m³ | ~380–440 kg/m³ | 350–550 kg/m³ | 500–600 kg/m³ |
| L/D ratio | ~1:1–3:1 | ~1:1–3:1 | 1:1–4:1 | — |
| Price position | Premium brand (European manufacturing) | Factory-direct from China — more competitive | ||
SORBONORIT figures (iodine, CTC, BET, hardness, ash, moisture) are compiled from published technical literature and are typical values — not confirmed from a current manufacturer datasheet, which was not publicly accessible at the time of writing. Treat them as indicative and request the official Norit datasheet for tender-critical specifications. HojeeVapor specs are from our published product pages. Hardness test methods may differ (Ball Pan vs GB/T) — see the honest notes below.
4. Raw Material — Peat vs Coal: What It Means in Practice
This is the most significant technical difference between SORBONORIT and HojeeVapor — and we want to be upfront about it.
SORBONORIT is made from peat, which produces a carbon with a distinctive mesopore-rich structure. This gives SORBONORIT excellent working capacity — the difference between adsorption at high concentration and desorption during steam regeneration — which matters in cyclic solvent recovery.
HojeeVapor BP60 / BP50 use anthracite or bituminous coal. Coal-based extruded carbon can be tuned via activation to overlap the CTC and iodine ranges of peat-based carbon. However, the pore-size distribution at a micro-level may differ — coal carbons tend to be more micropore-dominant.
What this means for you: For many solvent mixtures (toluene, acetone, hexane, MEK, xylene, chlorinated solvents), coal-based extruded carbon delivers equivalent adsorption and regeneration performance. For solvents with very specific polarity or molecular-size requirements, a pilot adsorption/desorption test with your actual gas stream is the definitive way to confirm drop-in compatibility.
We recommend this test for every new carbon supply qualification — regardless of whether the candidate is SORBONORIT, HojeeVapor, or any other brand. It is the only honest way to guarantee on-site performance.
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5. Hardness — An Honest Comparison Note
SORBONORIT reports ≥ 98% Ball Pan hardness (ASTM D3802). HojeeVapor BP60 publishes > 95% and BP50 publishes ≥ 95% — but the exact test method may be the Chinese GB/T standard rather than Ball Pan.
These numbers are not directly comparable across different test methods. Ball Pan is a tumbling abrasion test; GB/T strength is a compression test. A carbon scoring 95% under one method might score 97% or higher under the other.
For solvent recovery adsorbers that undergo hundreds or thousands of adsorption/regeneration cycles, hardness determines how much carbon breaks down into fines over time. If hardness is critical to your application:
- Request HojeeVapor test results under the same method you use for SORBONORIT qualification (typically ASTM D3802).
- Or run your own attrition test under site-representative conditions — this gives the truest answer.
6. Ash Content — Where Coal Carbon Has a Gap
SORBONORIT's ash is approximately 9%. HojeeVapor BP60 specifies < 12% and BP50 specifies ≤ 12%. On paper, coal-based carbon tends to have slightly higher ash than peat-based carbon — though both are well within the normal range for gas-phase duty.
In solvent recovery, ash is rarely the deciding factor — it matters more in water treatment and food-grade applications. For gas-phase adsorption, the CTC value and working capacity are what drive performance. That said, if your process is ash-sensitive (e.g., semiconductor-grade air treatment), request a COA with actual ash figures before committing.
7. When HojeeVapor Is the Right Switch — and When It Isn't
| Scenario | Recommendation |
|---|---|
| General solvent recovery (toluene, acetone, hexane, MEK) | ✅ HojeeVapor BP60 — likely a direct drop-in |
| VOC removal / odor control in industrial exhaust | ✅ HojeeVapor BP60 — standard duty |
| High-performance recovery with high cycle count | ✅ HojeeVapor BP50 — CTC ≥ 50%, iodine ≥ 900 |
| Specialty polar solvents with very specific pore requirements | ⚠️ Pilot test recommended before switching |
| Tender requires Norit brand or SORBONORIT by name | ❌ Brand lock-in — stay with SORBONORIT |
| Ash must be < 5% (specialty applications) | ⚠️ Request COA; standard BP60 spec is < 12% |
8. Summary Comparison
| Factor | SORBONORIT (All Grades) | HojeeVapor BP60 / BP50 |
|---|---|---|
| Raw material | Peat | Coal (anthracite / bituminous) |
| Diameters | 3 mm, 4 mm | Φ0.9–5.0 mm (BP60); Φ3–5 mm (BP50) |
| CTC range | ~50–70% | 30–100% (BP60); ≥ 50% (BP50) |
| Iodine number | ≥ 900–1,050 mg/g | 400–1,000 mg/g (BP60); ≥ 900 mg/g (BP50) |
| Hardness | ≥ 98% (Ball Pan) | > 95% — different test method possible |
| Ash | ~9% | < 12% |
| Mesopore advantage | Yes (peat origin) | Less; coal is more micropore-dominant |
| Regeneration durability | Proven over decades | Proven in industrial service; pilot test recommended |
| Price position | Premium (European brand) | More competitive (factory-direct China) |
| Impregnation options | Available (custom) | KOH, KI, NaOH, KMnO₄ available |
Consider HojeeVapor if: you run a standard solvent recovery or VOC adsorption system, want to reduce your carbon cost without re-engineering your adsorber, and are willing to run a pilot test to confirm performance on your specific solvent mix. BP60 covers the standard grades (SORBONORIT 3 / 4); BP50 covers the high-activity grades (B3 / B4).
Stick with SORBONORIT if: your tender specifically requires Norit by name, you handle a specialty solvent with very specific pore requirements that have been validated exclusively on peat carbon, or you prefer the established European supply chain.
The right way to settle any comparison is a pilot adsorption/desorption test on your actual gas stream. Request matched samples from both suppliers and run them under identical conditions — that is the only definitive answer.
Ready to Test HojeeVapor Against Your Current SORBONORIT?
Tell us the SORBONORIT grade you're currently using, your solvent mix, flow rate and regeneration cycle. We'll send a spec sheet, factory COA and pricing within 24 hours — and ship 5 kg samples for your pilot test.
Frequently Asked Questions
What is SORBONORIT activated carbon and what is it used for?
SORBONORIT is a range of steam-activated extruded (pellet) activated carbon originally produced by Norit. The range includes SORBONORIT 3, 4, B3, B4, BX3, BX4, K3, K4, K4S, KB3, KB4 and X4, and is designed for gas-phase applications — primarily solvent recovery, VOC removal and industrial air purification. The trailing number indicates the nominal pellet diameter in millimeters (3 = ~3 mm, 4 = ~4 mm); letter prefixes such as B, BX, K, KB and X denote different sub-grades within the family.
What is the difference between SORBONORIT 3, 4, B3 and B4?
SORBONORIT 3 and 4 differ in pellet diameter — 3 mm vs 4 mm. Smaller pellets offer faster adsorption kinetics but higher pressure drop; larger pellets reduce pressure drop at the cost of slightly slower kinetics. The B3 and B4 variants are higher-activity versions of the same diameters, with a higher iodine number (typically ≥1,050 vs ≥900 mg/g) and greater BET surface area, intended for demanding solvent recovery duties.
Can HojeeVapor BP60 replace SORBONORIT 4 directly?
Yes, for most solvent recovery and VOC removal applications. BP60 is a coal-based extruded pellet available in Φ4.0 mm (same as SORBONORIT 4) with a CTC range of 30–100% and iodine of 400–1000 mg/g. The appropriate CTC grade is selected to match the specific SORBONORIT sub-grade you are currently using. We recommend a pilot-scale adsorption test with your actual solvent stream to confirm drop-in compatibility before switching production.
Is SORBONORIT made from peat or coal?
SORBONORIT is traditionally manufactured from peat using steam activation, giving it a distinctive pore-size distribution. HojeeVapor BP60 / BP50 use anthracite or bituminous coal as the raw material. Coal-based extruded carbon can be engineered to achieve similar or overlapping CTC and iodine performance, though the pore-size distribution may differ in detail. A working-capacity test on your solvent mix is the definitive check.
What diameters does HojeeVapor offer as a SORBONORIT alternative?
HojeeVapor BP60 is available in Φ0.9, 1.5, 2.0, 3.0, 4.0 and 5.0 mm — covering both the 3 mm and 4 mm sizes that correspond to SORBONORIT 3 / B3 and SORBONORIT 4 / B4. HojeeVapor BP50 is available in Φ3, 4 and 5 mm for higher-activity duties.
How does pricing compare between SORBONORIT and HojeeVapor?
Norit is a premium global brand with European manufacturing and distribution overheads reflected in price. HojeeVapor ships factory-direct from China with no distributor markup. For plants consuming tens or hundreds of tons per year, the per-ton saving can be substantial — without sacrificing the CTC and iodine performance your solvent recovery system needs. Contact us with your volume for a specific quotation.