Lewis® Compatible — Built for Strong Acid Service
Industrial Chemical & Petrochemical Pumps Manufacturer
EMAIL: info@chempumps.cn
Lewis® Compatible — Built for Strong Acid Service
Industrial Chemical & Petrochemical Pumps Manufacturer
EMAIL: info@chempumps.cn
Coal-to-chemical conversion is a major industrial pathway in China, producing synthetic fuels, methanol, urea, and specialty chemicals from coal gasification and synthesis. Coal chemical plants generate byproduct sulfuric acid, handle corrosive synthesis loops, and require pumps engineered for extreme conditions: syngas-derived acid streams, methanol circulation, coal tar handling, and high-pressure synthesis gas recycling. ChemPumps manufactures specialized coal chemical industry pumps for every stage of coal gasification, syngas production, chemical synthesis, and product recovery. Our portfolio includes sulfuric acid pumps for acid recovery, corrosion-resistant pumps for synthesis loops, and heavy-duty transfer pumps proven across major coal-to-chemical complexes in Ningxia, Shaanxi, and Inner Mongolia.
Coal-to-chemical production creates unique pump challenges across five process areas:
Syngas Wet Scrubbing Circuits – Syngas cooled and scrubbed in water produces corrosive carbonic acid and sulfur oxides. Pumps must resist acidic aqueous corrosion while handling condensate and particulate carryover.
Coal Tar & Heavy Oil Circulation – Heated coal tar and synthetic oils require pumps with anti-coking properties and thermal management to prevent polymerization and line blockage.
Byproduct Sulfuric Acid – Coal gasification produces byproduct sulfuric acid (40–98% H₂SO₄) that requires specialized corrosion-resistant pump materials and seal systems.
Methanol Synthesis & Circulation – Methanol synthesis loops operate at high pressure (50–100 bar) and moderate temperature (200–300°C), demanding pressure-rated and chemically compatible pump designs.
Urea Synthesis & Product Cooling – Urea reactors produce corrosive ammonia and CO₂ products requiring robust pump designs for ammonia-rich streams and high-temperature cooling loops.
Standard industrial pumps fail rapidly under these combined thermal, pressure, and corrosive stresses. Coal chemical pumps must be engineered with advanced materials and thermal management.
ChemPumps offers five specialized pump categories engineered for every coal-to-chemical production stage.
Coal gasification and syngas cleaning produce byproduct sulfuric acid (40–98% H₂SO₄). Our sulfuric acid pump series handles variable acid concentration with specialized material selection: B-2 alloy ductile iron (B-1/B-2) for dilute byproduct acid, B-11/B-12 Lewmet shaft sleeves for concentrated acid streams. Continuous circulation, acid cooling, and inter-plant transfer all supported. Browse coal chemical sulfuric acid pumps →
Methanol synthesis loops, urea reactors, and syngas recycling circuits handle corrosive media at elevated pressure and temperature. Our corrosion resistant pump and acid resistant pump lines use high-alloyed materials for extended service in aggressive synthesis environments. Browse corrosion-resistant synthesis pumps →
Where acid recovery occurs at elevated temperature (100–150°C), our high temperature acid pump series delivers the thermal tolerance needed for hot byproduct acid circulation. Thermal relief systems and heat-resistant seal designs prevent seal failure under thermal stress. Browse high-temperature coal chemical pumps →
Coal tar, synthetic oils, and coal-derived liquids require anti-coking designs and thermal management. Our chemical transfer pump line handles heated coal tar circuits, synthetic fuel transfer, and product recovery without polymerization-driven blockage. Browse chemical transfer pumps →
General-purpose industrial chemical pumps handle diverse coal chemical media: syngas scrubber liquids, methanol, urea solutions, and process condensates. Robust designs rated for continuous duty across coal gasification and synthesis operations. Browse industrial chemical pumps →
Coal-to-chemical processes demand materials that resist multiple simultaneous stresses: corrosion, thermal cycling, high pressure, and chemical incompatibility.
| Service | Media Type | Temperature | Material System | Corrosion Rate | Service Life |
| Byproduct acid (40–60%) | Dilute H₂SO₄ | 40–80°C | B-2 ductile iron casing | 0.1–0.2 mm/a | 3–5 years |
| Concentrated acid (85–98%) | Concentrated H₂SO₄ | 60–120°C | B-2 casing + B-11/B-12 shaft | 0.05–0.1 mm/a | 5–7 years |
| Synthesis loop (high pressure) | Methanol, ammonia, CO₂ | 80–150°C | Alloy ductile iron, 50+ bar rated | Chemically resistant | 3–5 years |
| Coal tar & oil | Heated coal tar, synthetic oils | 100–160°C | Heat-resistant ductile iron | Polymerization resistant | 2–4 years |
| Syngas scrubber | Acidic condensate + particulates | 40–60°C | B-2 alloy iron with protective coating | 0.1 mm/a | 2–3 years |
Syngas cooling and scrubbing produce dilute sulfuric acid (40–60% H₂SO₄). This byproduct acid requires specialized pumps for concentration, cooling, and recirculation through acid recovery circuits. Explore syngas acid recovery solutions →
Methanol synthesis from syngas requires pumps for reactor coolant circulation, methanol product cooling, and syngas recycling at pressures up to 100 bar. Our corrosion resistant pumps handle the chemical and thermal demands of synthesis loops. Explore methanol synthesis pump solutions →
Coal tar produced from coal gasification and liquefaction requires heated transfer to refining equipment. Our chemical transfer pump handles coal tar circulation without polymerization or clogging. Explore coal tar transfer solutions →
Urea synthesis from ammonia and CO₂ produces corrosive process streams requiring robust pump designs. Our industrial chemical pumps circulate urea reactor coolant and handle product cooling in integrated coal-to-urea facilities. Explore urea synthesis pump solutions →
Proven Track Record in Major Coal Complexes – ChemPumps pumps operate in China’s largest coal-to-chemical facilities (Ningxia, Shaanxi, Inner Mongolia) with 10+ year service records across syngas, methanol, urea, and acid recovery circuits.
Specialized Byproduct Acid Expertise – Variable-concentration sulfuric acid from coal gasification requires flexible material strategies. We specify optimal material selection (B-1 through B-13) for each acid concentration and temperature.
High-Pressure Synthesis Pump Capability – Methanol and urea synthesis loops operate at 50–100 bar. Our high-pressure pump designs and engineering deliver the robustness required for continuous synthesis operation.
Coal Tar Anti-Coking Design – Specialized impeller geometry and thermal management prevent polymerization-driven blockage in heated coal tar and synthetic oil circuits.
Integrated Multi-Circuit Solutions – Coal-to-chemical complexes have 5+ parallel pump circuits (acid recovery, synthesis loop, product cooling, tar transfer). We coordinate material strategies, seal systems, and spare parts across all circuits.
Rapid Onsite Support – With manufacturing and service centers across China’s coal chemical regions, we provide rapid equipment replacement and field technical support.
Coal gasification byproduct acid ranges 40–98% H₂SO₄. For 40–60% dilute acid, B-2 ductile iron casing works well (corrosion 0.1–0.2 mm/a). For concentrated byproduct acid (80–98%), upgrade to B-2 casing + B-11/B-12 Lewmet shaft sleeves (corrosion <0.1 mm/a). Request variable-acid material selection guidance.
Yes. Our corrosion resistant pumps are rated for continuous operation at 50–100 bar discharge pressure in methanol synthesis loops. Heavy-duty bearing frames and pressure relief systems ensure safe operation under sustained high pressure. View high-pressure synthesis pump specifications.
Heated coal tar (100–160°C) undergoes polymerization, hardening on pump internals and causing blockage. Standard pumps lack thermal management and use materials that don’t resist polymerization. Our chemical transfer pumps use heat-resistant materials, anti-stick surface treatments, and trace heating to prevent polymerization. Request coal tar anti-coking specifications.
Coal-to-chemical plants typically have 5+ independent pump circuits (acid recovery, synthesis coolant, product cooling, tar transfer, etc.). Each requires different material strategies and seal systems. Our engineering team coordinates material specifications and spare parts across all circuits for seamless integration and maintenance scheduling. Contact our coal chemical integration specialists.
Yes. Integrated coal-to-chemical and coal-to-fertilizer plants operate overlapping acid and synthesis circuits. We supply sulfuric acid pumps for acid recovery, corrosion resistant pumps for synthesis, and coordinate with fertilizer pumps for integrated operation. Explore integrated coal-chemical-fertilizer solutions.
Coal chemical production requires comprehensive pump engineering. Here’s our approach:
Get in touch with our coal chemical pump specialists → or explore our coal chemical industry pump portfolio →
