---
title: "High-Pressure Ammonia Synthesis Reactor"
industry: "Fertilizers and Nitrogen Compounds Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:HIGH_PRESSURE_AMMONIA_SYNTHESIS_REACTOR"
  data_integrity_hash: "11aca069b349d4740d8187adddafcc96"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:HIGH_PRESSURE_AMMONIA_SYNTHESIS_REACTOR"
  data_source_uri: "https://cnfx.com/llms/industry/fertilizers-nitrogen-compounds-manufacturing/product/high-pressure-ammonia-synthesis-reactor.md"
  official_resource_url: "https://cnfx.com/industry/fertilizers-nitrogen-compounds-manufacturing/product/high-pressure-ammonia-synthesis-reactor"
  is_verified_logic: true
attributes:
  design_pressure:
    status: "config-dependent"
    typical_range: "1.5-3.0 bar"
    unit: "MPa"
  operating_temperature:
    status: "config-dependent"
    typical_range: "400-500°C"
    unit: "°C"
engineering_limits:
  max_safe_operating_point:
    value: 350
    unit: "bar"
    consequence: "Creep rupture due to prolonged exposure to hydrogen embrittlement and thermal stress exceeding the yield strength of low-alloy steel (e.g., SA-387 Grade 11) at elevated temperatures"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Catalyst bed channeling from uneven gas distribution"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Installation of radial flow distributors with pressure drop monitoring at 0.5 bar intervals"
  - node_2:
      trigger: "Thermal cycling from frequent shutdowns (≥3 cycles/week)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Post-weld heat treatment to 650°C for 2 hours per ASME Section VIII Division 2"
bom_nodes:
  pressure-vessel-shell:
    type: "part"
    urn: "URN:CNFX:ME:PRESSURE_VESSEL_SHELL"
    interface_type: "physical-logic-coupled"
  catalyst-baskets:
    type: "part"
    urn: "URN:CNFX:ME:CATALYST_BASKETS"
    interface_type: "physical-logic-coupled"
  thermowell-assemblies:
    type: "part"
    urn: "URN:CNFX:ME:THERMOWELL_ASSEMBLIES"
    interface_type: "physical-logic-coupled"
  gas-distribution-system:
    type: "part"
    urn: "URN:CNFX:ME:GAS_DISTRIBUTION_SYSTEM"
    interface_type: "physical-logic-coupled"
  insulation-jacket:
    type: "component"
    urn: "URN:CNFX:ME:INSULATION_JACKET"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 16528-1:2007 (BOILERS AND PRESSURE VESSELS)"
    scope: "Verified Engineering Specification"
  - standard: "EN 13445-3:2021 (UNFIRED PRESSURE VESSELS)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/fertilizers-nitrogen-compounds-manufacturing/product/high-pressure-ammonia-synthesis-reactor.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "071eb9ccc29f791de29a771f7dba4df0637ca8d900a15ef3c529d5266a101e41"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: High-Pressure Ammonia Synthesis Reactor

## 1. Technical Definition
Industrial pressure vessel for catalytic ammonia production from nitrogen and hydrogen

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **150-300 bar at 400-500°C**. Failure boundary: **350 bar internal pressure at 550°C wall temperature**, Mechanism: **Creep rupture due to prolonged exposure to hydrogen embrittlement and thermal stress exceeding the yield strength of low-alloy steel (e.g., SA-387 Grade 11) at elevated temperatures**.

### 2.1 Analytical Physics Model
Governed by the **Thin-Wall Pressure Vessel Stress Analysis**:

> **Primary Equation**: $\sigma_h = \frac{P \cdot D}{2t}$  
> **Engineering Impact**: Determines the hoop stress boundary to prevent rupture.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| P | Internal Pressure | Engineering Constant |
| D | Diameter | Engineering Constant |
| t | Wall Thickness | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Catalyst bed channeling from uneven gas distribution | 8 | Localized hot spot formation exceeding 600°C | Installation of radial flow distributors with pressure drop monitoring at 0.5 bar intervals |
| Thermal cycling from frequent shutdowns (≥3 cycles/week) | 8 | Fatigue cracking at nozzle-to-shell junctions | Post-weld heat treatment to 650°C for 2 hours per ASME Section VIII Division 2 |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| design_pressure | Config-dependent | MPa | Verified |
| operating_temperature | Config-dependent | °C | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Pressure Vessel Shell](https://cnfx.com/llms/industry/chemical-manufacturing/product/pressure-vessel-shell.md) `(Standalone System)`
- [Catalyst Baskets](https://cnfx.com/llms/industry/chemical-manufacturing/product/catalyst-baskets.md) `(Standalone System)`
- [Thermowell Assemblies](https://cnfx.com/llms/industry/chemical-manufacturing/product/thermowell-assemblies.md) `(Standalone System)`
- [Gas Distribution System](https://cnfx.com/llms/industry/chemical-manufacturing/product/gas-distribution-system.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Hydrogen Production Unit**, **Nitrogen Generation System**, **High-Pressure Compressor**  
**Downstream Applications**: Ammonium Nitrate, Urea, Ammonium Phosphate  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What materials are used in the construction of this ammonia synthesis reactor?
**A**: The reactor is constructed with low-alloy steel for the pressure vessel shell, stainless steel cladding for corrosion resistance, and high-temperature alloys for components exposed to extreme conditions during ammonia synthesis.

### Q: What are the key components included in the reactor's bill of materials?
**A**: The BOM includes catalyst baskets for holding the catalytic material, a gas distribution system for uniform reactant flow, an insulation jacket for temperature maintenance, the pressure vessel shell, and thermowell assemblies for temperature monitoring.

### Q: What are the typical operating specifications for this ammonia synthesis reactor?
**A**: Specifications include catalyst bed height, design pressure in MPa, design and operating temperatures in °C, reactor volume in m³, and shell thickness in mm, all engineered for efficient high-pressure ammonia production.

## 6. Manufacturing Compliance
- ISO 16528-1:2007 (BOILERS AND PRESSURE VESSELS)
- EN 13445-3:2021 (UNFIRED PRESSURE VESSELS)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: High-Pressure Ammonia Synthesis Reactor](https://cnfx.com/industry/fertilizers-nitrogen-compounds-manufacturing/product/high-pressure-ammonia-synthesis-reactor)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **5** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: HIGH_PRESSURE_AMMONIA_SYNTHESIS_REACTOR | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: c033bd23
