Hydrogen Sulfide Gas Dehydration and Drying Solution
Industry Pain Points
Highly Corrosive Medium: H₂S reacts with water to form sulfuric acid (pH<1), causing traditional stainless steel equipment to corrode and perforate within 3-6 months, increasing annual maintenance costs by 300%.
Difficulty in Deep Dehydration: Conventional molecular sieves have a sulfur capacity of only 1-3% in H₂S environments, with the dew point rapidly rising from -70℃ to -20℃, requiring frequent adsorbent replacement.
Prominent Safety Risks: Moist H₂S tends to precipitate liquid sulfur when pressure changes, clogging pipelines and causing leaks (H₂S ≥100ppm is lethal).
Conflict Between Energy Consumption and Environmental Protection: Electric heating regeneration consumes 0.3-0.5 kWh/Nm³, and the exhaust gas contains SO₂, resulting in high treatment costs.
SYSTEM OVERVIEW
Yipu H₂S Dehydration System achieves the following through the “sulfur-resistant materials – sulfur resource utilization – intelligent protection” technology chain:
Intrinsic Safety: The world’s only H₂S dehydration equipment certified to SIL3.
Cost Reduction & Efficiency Improvement: Sulfur recovery revenue can cover 60% of operating costs.
Long-Cycle Operation: 5-year maintenance-free period, with an availability rate of ≥99.5%.
Technology Evolution
Launched an ultra-high pressure type (10MPa) in 2024, suitable for deep well sour gas development.
Developed an electronic-grade direct sulfur production process, increasing purity to 99.99%.
This solution is core equipment for oil and gas fields as well as refining and chemical enterprises to achieve safe desulfurization and resource value enhancement.
Solution Approach
Yipu Hydrogen Sulfide Gas Dehydration & Drying Solution
Module
Technical Solution
Performance Indicators
Titanium Alloy Separator
3D-printed flow channel, H₂S resistance ≤30%
Liquid droplet removal rate ≥99.5%, pressure loss ≤0.005MPa
Nanoparticle Desulfurization Layer
Fe₂O₃/activated carbon composite material
H₂S removal rate ≥95%, sulfur capacity 25%
Sulfur-Resistant Adsorption Tower
Hastelloy C276 lining, pressure resistance 4MPa
Outlet dew point -60℃, service life ≥5 years
Sulfur Recovery Unit
Steam regeneration + sulfur condenser
Sulfur recovery purity ≥99.9%, SO₂ ≤10mg/m³
Intelligent Monitoring
H₂S laser detection + AI prediction of sulfur clogging risk
Leak warning response time ≤0.5 seconds
Applicable Scenarios
Natural gas desulfurization tail gas treatment
Refinery sour gas recovery
Biogas purification and desulfurization
Geothermal well associated gas treatment
Technical Principles
Yipu Four-Stage Sulfur-Resistant Dehydration Process
Gas-Liquid Separation (Stage 1): The titanium alloy high-gravity separator removes 99% of liquid water within 0.2 seconds, with a 10-year service life against H₂S corrosion.
Pre-Desulfurization Protection (Stage 2): The nanoparticle iron oxide adsorption layer prioritizes H₂S adsorption (sulfur capacity up to 25%) to protect subsequent molecular sieves.
Deep Adsorption (Stage 3): The hydrophobic molecular sieve (Type 3A-SH) maintains a dew point of -60℃ even at H₂S ≤1000ppm, with a service life of 5 years.
Chemical Regeneration (Stage 4): Activation and regeneration are carried out with low-pressure steam (0.3MPa), converting adsorbed H₂S into elemental sulfur for recovery, and SO₂ in regenerated exhaust gas ≤10mg/m³.
CORE ADVANTAGE
Advantage Category
Description
Customized on Demand
Meets special working conditions; provides professional non-standard customization
Maintains low failure rate after 10,000 hours of operation; nearly maintenance-free durability
TECHNICAL STRENGTH
Leading Adsorption Dehydration Technology
Uses high-performance molecular sieve adsorbents with high water absorption capacity and resistance to acidic gas (H₂S/CO₂) corrosion, ensuring deep dehydration with a dew point ≤ -70℃.
Features an original hot nitrogen regeneration process, reducing energy consumption by 30% compared to traditional electric heating regeneration, and integrates a waste heat recovery system to significantly improve energy efficiency.
Modular and Customized Design Capability
Core equipment adopts modular prefabrication, supporting rapid deployment (installation cycle shortened by 50%) and adapting to diverse scenarios such as offshore platforms, onshore gas fields, and LNG pre-treatment.
Can customize single-tower, double-tower, or multi-tower parallel systems according to customer needs, with a treatment capacity ranging from 10,000 to 1,000,000 Nm³/d, flexibly matching gas fields of different scales.
Intelligent Control and Remote Operation & Maintenance
Equipped with a PLC+IoT intelligent control system to monitor key parameters such as pressure, temperature, and dew point in real time, supporting fault early warning and automatic adjustment.
Optimizes the adsorption-regeneration cycle through cloud-based big data analysis, extending the service life of molecular sieves and reducing operation and maintenance costs by 10%-15%.
Energy-Saving and Environmental Protection Technology
Features zero-emission design for regenerated tail gas, complying with EU CE, US EPA, and other international environmental standards.
Energy consumption is 25%-40% lower than that of traditional Triethylene Glycol (TEG) dehydration systems, helping customers achieve carbon emission reduction goals.
Long-Cycle Operation Reliability
Molecular sieves adopt anti-pulverization coating technology, with a service life of over 5 years, reducing replacement frequency.
Key components (such as valves and instruments) are selected from international first-tier brands (e.g., Siemens, Emerson), with a Mean Time Between Failures (MTBF) of over 100,000 hours.
Strong R&D and Engineering Experience
Holds 19+ patents for dehydration technology and software copyrights; the R&D team is led by doctors and maintains in-depth cooperation with universities and colleges.
Has over 1,000 successful cases worldwide, covering extreme working conditions such as high-sulfur gas fields in the Middle East and low-temperature environments in the Arctic.
Product Advantage Comparison
Indicator
Yipu System
Traditional Desiccant
Competitor Adsorption-Type
Refrigeration Method
Dew Point Stability
-60℃±3℃ (H₂S≤1000ppm)
-20℃ (fails in 1 week)
-40℃ (fails in 1 month)
+5℃ (unable to achieve deep dehydration)
Sulfur Capacity
15%
3%
5%
Not applicable
Energy Consumption
0.15 kWh/Nm³ (including sulfur recovery)
0.4 kWh/Nm³
0.3 kWh/Nm³
0.25 kWh/Nm³
Material Service Life
5 years (molecular sieve)
3 months (requires frequent replacement)
1 year
No consumables
Safety Certification
Dual certification (SIL3 + ATEX explosion-proof)
None
ATEX only for Zone 2
Not applicable
Typical Case
Project Name: Offshore Platform Sour Gas Treatment Project
