Pith Number

pith:ZKVLSYRW

pith:2026:ZKVLSYRW3IDR4WH6ZPJWJBRDBH

not attested not anchored not stored refs resolved

Modeling and Simulation of Nitrogen Generation by Pressure Swing Adsorption for Power-to-Ammonia

John B. J{\o}rgensen, Lorenz T. Biegler, Marcus J. Schytt

A first-principles dynamic model establishes an extensible basis for simulating and optimizing pressure swing adsorption for nitrogen generation.

arxiv:2604.09053 v1 · 2026-04-10 · cs.CE · cs.NA · math.DS · math.NA

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\usepackage{pith}
\pithnumber{ZKVLSYRW3IDR4WH6ZPJWJBRDBH}

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2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

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The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

The proposed framework establishes an extensible basis for PSA simulation and optimization.

C2weakest assumption

That the chosen kinetically limited adsorption kinetics on carbon molecular sieves, 1D flow assumptions, and numerical methods for reaching cyclic steady state accurately capture real industrial PSA behavior without experimental validation data.

C3one line summary

A first-principles dynamic 1D PDAE model for PSA nitrogen generation is formulated, discretized, and demonstrated on a two-bed air separation cycle with comparisons of discretization, solvers, and gas thermodynamics.

References

6 extracted · 6 resolved · 0 Pith anchors

[1] Clean Ammonia Roadmap 2024

[2] Pressure swing adsorption processes to purify oxygen using a carbon molecular sieve 2005

[3] Large-scale optimization strategies for pressure swing adsorption cycle synthesis 2012

[4] Numerical Methods for Conservation Laws 2018

[5] Diagonally Implicit Runge-Kutta Methods for Ordinary Differential Equations: A Review 2016

Receipt and verification

First computed	2026-06-01T01:03:52.741557Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

caaab96236da071e58fecbd364862309e19fc042cc1654acc1e65d814426613f

Aliases

arxiv: 2604.09053 · arxiv_version: 2604.09053v1 · doi: 10.48550/arxiv.2604.09053 · pith_short_12: ZKVLSYRW3IDR · pith_short_16: ZKVLSYRW3IDR4WH6 · pith_short_8: ZKVLSYRW

Agent API

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Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/ZKVLSYRW3IDR4WH6ZPJWJBRDBH \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: caaab96236da071e58fecbd364862309e19fc042cc1654acc1e65d814426613f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5e76fc365446335b5297c7aceb0333303115fc4f0487d73f5e931f6a93e700b",
    "cross_cats_sorted": [
      "cs.NA",
      "math.DS",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "cs.CE",
    "submitted_at": "2026-04-10T07:25:57Z",
    "title_canon_sha256": "f6b28c1c474929c3b06bd44ef6890db6e22b18e8d9c1009067ac2a018c2098ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.09053",
    "kind": "arxiv",
    "version": 1
  }
}