DDH-H Series Methanol Cracking Reducing Gas Generation System

The DDH-H Series Intelligent Reducing Gas Generation System adopts electric heating as its heating source. The generated reducing gas, composed primarily of hydrogen and carbon monoxide, achieves a dew point below -35°C after professional drying treatment. It is ideally suited for reduction and atmosphere protection of metal powders and finished workpieces in industrial reduction furnaces.

Featuring low capital investment and minimal operational expenditure, this system delivers superior cost performance compared with traditional high-purity hydrogen generation equipment. The single-unit gas production capacity of the DDH-H series ranges from 30 Nm³/h to 200 Nm³/h.

Features

Uses methanol reforming & electric heating to make reducing gas
Output H₂-CO mixed gas with dew point under -35℃
Ideal for metal powder and workpiece furnace reduction
Far lower cost than standard high-purity hydrogen generator
Delivers faster ROI for hydrogen production plant projects
Stable, compact integrated methanol reformer unit
Matches various green hydrogen plant heat treatment lines

Applications

Metal powder reduction
Heat treatment in reducing atmosphere
Stainless steel manufacturing
Non-ferrous metal processing

On-Site Production of Metallurgical Reducing Atmosphere Gas

Stable dedicated reducing gas for metal thermal processing can be supplied on-site through mature methanol reforming technology. We customize each methanol reformer according to gas flow, furnace pressure, dew point standard and workshop space, perfectly matching hydrogen production plant and green hydrogen plant metallurgical production lines.

HYVODA DDH-H hydrogen gas generator is tailor-made for metallurgical reduction furnaces. This methanol reformer produces hydrogen-carbon monoxide mixed gas for stainless steel annealing, metal powder reduction and non-ferrous thermal treatment. Compared with traditional hydrogen production plant with PSA purification, the hydrogen generator lowers investment and running costs, and delivers stable low-dew atmosphere to avoid oxidation and surface defects during continuous heat treatment.

Electric-Heated Methanol Reforming Reducing Gas Technology

Electric heating methanol reforming is the cost-effective solution for medium-volume metallurgical reducing gas demand. Inside the methanol reformer, steam reforming of methanol (also known as reforming methanol) occurs to form mixed gas with 65–75 vol% hydrogen, without multi-stage PSA separation. After deep drying, the gas dew point drops below -35 ℃ to meet bright heat treatment standards. Single unit capacity ranges from 30 to 200 Nm³/h; multiple methanol reformers can operate in parallel to support multi-furnace production of green hydrogen plant.

Fully Integrated Explosion-Proof Skid Assembly

The DDH-H hydrogen generator integrates methanol dosing, vaporization, electric heating methanol reformer and drying modules into one explosion-proof skid. All assemblies are fully welded, pressure tested and run for 72 hours under full load before delivery, enabling quick installation in metallurgical hydrogen production plant.

Specifications and Core Technical Advantages

Core strengths of HYVODA DDH-H hydrogen gas generator with methanol reformer:

Independent electric heating loop, no need for factory waste heat or steam for methanol reforming
H₂-CO mixed gas with 65–75 vol% hydrogen, ideal for oxidation-free processing in green hydrogen plant
Built-in deep drying unit, gas dew point below -35 ℃ to prevent workpiece discoloration
Compact explosion-proof skid design to save workshop space of hydrogen production plant
Complete factory pre-commissioning; on-site pipeline connection finished within 1–2 weeks
AI PLC unattended automatic control with cloud remote monitoring and safety interlock shutdown
30–110% dynamic load adjustment adapting batch furnace production fluctuation
Max 0.9 MPa standard delivery pressure, customizable booster skids available
15-year service life for core catalyst and methanol reformer reactor
Lower overall cost than ammonia cracking and high-purity hydrogen production plant solutions

HOW IT WORKS

Electric-Heated Methanol Reforming & Deep Drying Process

Feed Metering & Vaporization: Industrial methanol is accurately proportioned and vaporized via electric heat exchangers of the hydrogen generator
High-Temperature Catalytic Methanol Steam Reforming: Methanol vapor contacts dedicated catalyst inside the methanol reformer to complete reforming methanol reaction and generate hydrogen-rich reducing syngas
Cooling & Condensate Recovery: High-temperature crude gas cools down; unreacted methanol condenses and recycles back to feed tank to cut raw material consumption of methanol reforming
Deep Drying Polishing: Molecular sieve removes residual moisture and stabilizes gas dew point below -35 ℃
Reducing Gas Output: Dry low-dew mixed gas is directly transported to reduction furnaces of hydrogen production plant
Waste Heat Reutilization: Waste cooling heat preheats incoming methanol feed to reduce power consumption of methanol reformer

DDH-H Series General Performance Benchmark Table

Parameter Item	Standard Specification
Hydrogen Volume Fraction in Syngas	65 ~ 75 vol%
Rated Delivery Pressure	≤0.9 MPaG
Product Gas Dew Point	＜ -35 ℃
Outlet Gas Temperature	≤40 ℃
Adjustable Operating Flow Range	30% ~ 110% of rated capacity of methanol reformer
Full Equipment Design Lifespan	15 years
Purification & Drying Configuration	No PSA hydrogen separation, single-stage deep drying matched with methanol reforming
Heating Mode	Independent built-in electric heating for methanol reformer

DDH-H Series Full Model Parameter Table

Model Code	Rated Reducing Gas Output (Nm³/h)	Methanol Consumption (kg/h)	Total Installed Power (kW)	Overall Dimension L×W×Hmm
DDH-H-30	30	15	18	3100×2149×2350
DDH-H-70	70	35	42	3100×2149×2820
DDH-H-150	150	75	90	3100×2149×3020
DDH-H-200	200	100	120	3100×2149×3020

Note: DDH-H hydrogen gas generator skid contains methanol reformer, electric heating and drying subsystems. Cooling and desalinated water systems are supplied separately. Power and consumption data are reference values for hydrogen production plant layout design.

FAQ’S

What reducing gas quality can the DDH-H hydrogen generator provide?

The methanol reformer produces mixed gas with 65–75% hydrogen; after molecular sieve drying, dew point is below -35 ℃. This stable atmosphere prevents oxidation for annealing and powder reduction workshops of green hydrogen plant.

Does the DDH-H methanol reformer require factory waste heat supply?

No external heat source is needed. The whole methanol reforming system relies on independent electric heating, suitable for metallurgical hydrogen production plant without waste heat recovery equipment.

Is full-time staff required to operate this hydrogen gas generator?

Continuous manual supervision is unnecessary. The methanol reformer runs under automatic PLC control with remote monitoring and leakage protection. We provide professional training covering methanol reforming daily operation for your workshop technicians.

Can gas flow and pressure be customized for our hydrogen production plant?

All DDH-H hydrogen generator supports tailor-made flow rate, outlet pressure and skid size design, matching multi-furnace layout requirements of green hydrogen plant and Green Hydrogen Production Plant.

How long is on-site installation and commissioning cycle?

All methanol reformer core modules finish factory testing before shipment. Pipeline connection and system debugging can be completed within 1–2 weeks for hydrogen production plant construction.

What is the running noise of the DDH-H hydrogen generator?

Fully enclosed sound insulation limits noise below 75dB(A) at 1 meter, meeting environmental standards of indoor metallurgical hydrogen production plant.

What is the maintenance cycle of the methanol reformer?

Monthly inspection and quarterly desiccant replacement are required for the hydrogen gas generator; the core catalyst for methanol reforming only needs replacement after multiple years of stable operation.

APPLICATIONS

Industry & Thermal Treatment Scenario	Application Description
Metal Powder Reduction Furnaces	DDH-H hydrogen generator supplies low-dew gas via methanol reforming for alloy powder deoxidation
Stainless Steel Bright Annealing	Methanol reformer provides oxidation-free atmosphere for mirror surface processing in green hydrogen plant
Non-Ferrous Metal Processing	Clean mixed gas from hydrogen gas generator for copper and aluminum alloy annealing
Precision Component Sintering	Stable reducing atmosphere from methanol reformer for powder metallurgy hydrogen production plant

Full Lifecycle EPC Turnkey Service Support

Service Phase	Detailed Service Deliverables
Pre-Sales Custom Engineering Design	Furnace gas demand calculation and layout planning for hydrogen production plant hydrogen generator
Factory Pre-Assembly & Performance Validation	Full assembly and 72-hour full-load test of each methanol reformer
On-Site Installation & Commissioning	Pipeline construction and methanol reforming system calibration for green hydrogen plant
Systematic Operator Training	Operation, maintenance and hydrogen safety training for the whole hydrogen gas generator
24/7 Global Remote After-Sales Support	Remote fault diagnosis and global spare parts supply for Green Hydrogen Production Plant
Capacity Expansion & Retrofit Service	Gas flow upgrade and pressure adjustment for existing DDH-H methanol reformer
OEM & ODM Customization	Skid structure modification and private labeling of hydrogen generator