neqsim-distillation-design SKILL.md skillA
neqsim-distillation-design from equinor/neqsim is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add equinor/neqsim/neqsim-distillation-design@git:20260727.e0679f5Pins git:20260727.e0679f5 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- equinor/neqsim
- Path
.github/skills/neqsim-distillation-design/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260727.e0679f5, committed Jul 27, 2026
- First version recorded
- Apr 5, 2026
- Size
- 13,056 bytes
- Repository stars
- 167
- License
- Apache-2.0
Distillation column design rules for NeqSim. USE WHEN: setting up distillation columns, troubleshooting convergence, selecting internals (trays/packing), sizing columns, or analyzing column performance. Covers DistillationColumn setup, solver selection, feed tray optimization, reflux ratio, and internals selection per industry standards.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Distillation Design Rules
Guide for distillation column modeling and design in NeqSim.
## Column Setup Pattern
```java
import neqsim.process.equipment.distillation.DistillationColumn;
import neqsim.process.equipment.stream.Stream;
import neqsim.thermo.system.SystemSrkEos;
import neqsim.thermo.system.SystemInterface;
// Create feed
SystemInterface feed = new SystemSrkEos(273.15 + 50.0, 15.0);
feed.addComponent("methane", 0.10);
feed.addComponent("ethane", 0.25);
feed.addComponent("propane", 0.30);
feed.addComponent("n-butane", 0.20);
feed.addComponent("n-pentane", 0.15);
feed.setMixingRule("classic");
Stream feedStream = new Stream("feed", feed);
feedStream.setFlowRate(10000.0, "kg/hr");
feedStream.setTemperature(50.0, "C");
feedStream.setPressure(15.0, "bara");
feedStream.run();
// Create column (name, stages, hasCondenser, hasReboiler)
DistillationColumn column = new DistillationColumn("Deethanizer", 15, true, true);
column.addFeedStream(feedStream, 8); // Feed on stage 8
// Specifications
column.setCondenserTemperature(273.15 - 30.0); // Kelvin
column.getReboiler().setHeatInput(1e6); // Watts
// OR set reflux ratio:
…Read the whole file at its exact version.
How to install
mdr add equinor/neqsim/neqsim-distillation-design@sha256:b578e7170bc8b1e3The line at the top of this page pins the label git:20260727.e0679f5, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_xdtvihopct2ukudb)
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Versions
The registry has recorded 5 versions of this file, between Apr 5, 2026 and Jul 27, 2026, about one every 28 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260727.e0679f5 latest | 2026-07-27 | e0679f5 | 13,056 B | A | view · diff |
| git:20260518.ce72aa3 | 2026-05-18 | ce72aa3 | 9,523 B | A | view · diff |
| git:20260430.ede7e64 | 2026-04-30 | ede7e64 | 8,471 B | A | view · diff |
| git:20260418.a3c26d6 | 2026-04-18 | a3c26d6 | 7,934 B | A | view · diff |
| git:20260405.7675010 | 2026-04-05 | 7675010 | 7,906 B | A | view |
Audit of the latest version
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Source
equinor/neqsim · 167 stars · license Apache-2.0 · pushed 2026-11-08 · branch master
API
GET https://markdownregistry.com/api/v1/artifacts/art_xdtvihopct2ukudb GET https://markdownregistry.com/api/v1/resolve?ref=equinor/neqsim/neqsim-distillation-design GET https://markdownregistry.com/api/v1/blob/b578e7170bc8b1e38e03c5d3ff8fa27b1e9708a6dc108312e8f92ece32c6e415
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