KIGL-DA-100 acetylene gas plant — built for continuous operation

The KIGL-DA-100 is the largest acetylene plant we build — nominally 100 Nm³/h — and it is specified for continuous generation rather than intermittent use.

That distinction matters more than the capacity figure. A plant built for continuous duty assumes it will not be stopped for routine attention: carbide charging, sludge handling and maintenance access are arranged around keeping it running. Buying a large plant and then running it continuously without that specification is a well-worn route to a plant that spends its life stopped.

Generation pressure: 0.2–0.92 kg/cm²g, ceiling 1.05 kg/cm²g — the same as the KIGL-DA-25 and KIGL-DA-50.

This surprises people, so it is worth being explicit: the operating pressure is set by the chemistry, not by the capacity. Acetylene decomposes explosively under pressure with no oxidant present at all, so every carbide generator ever built runs in the same low band. A bigger plant makes more gas per hour. It does not make gas at higher pressure, and any supplier suggesting otherwise should be asked to explain themselves.

Purge with nitrogen. Never air. Unchanged at every size, for the same reason at every size.

Three situations, in our experience:

Continuous industrial consumption — a works where acetylene is on the critical path and an outage stops production. Here the plant is bought for availability as much as for cost.

Commercial cylinder filling — supplying gas to others. This is a different business from generating for your own use, and the plant is the easy part. It brings cylinder ownership, periodic testing and requalification, filling records, inspection at filling under IS 16271, and its own licensing. We fill cylinders ourselves, so we can be specific about what you are taking on.

Replacing an ageing plant — where the decision is really about what happens during the changeover.

The right question is not "what redundancy is standard" but "what does an unplanned outage cost us?"

If the answer is a stopped line or customers you cannot supply, that conversation belongs at the design stage. It is far cheaper to specify for it than to retrofit after the first failure, and it is the single most common regret we hear on plants this size.

We have supplied, commissioned and re-commissioned acetylene plant outside India, and we carry out plant audits and operator training on site. Two points worth knowing on export projects:

• Cylinder standards do not travel. Cylinders built to an EN or DOT standard are not automatically acceptable under the Indian Gas Cylinders Rules, and Indian cylinders are not automatically acceptable elsewhere. This catches out companies importing an equipment package with cylinders included.
• Re-commissioning a plant that has been standing is its own discipline. It is not a job for a general mechanical contractor, and we would much rather be called before a restart than after one.