Liquefied Petroleum Gas (LPG) — Royal Global Energy
LPG
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LPGPropane, butane & PB mixture

Colourless, high‑purity liquefied petroleum gas sourced from processing plants across Turkmenistan and the Middle East — blended and tested to a consistent trading specification on every cargo.

It's a flexible energy carrier for domestic heating, autogas and petrochemical feedstock, moved to market in pressurized and refrigerated gas carriers.

Propane content, % — axis 95–100
RGE trading spec99.50%
Export minimum, typ.95.00%

Both grades sit inside the same tight, near‑total propane band — there's very little room between cargoes.

Propane Butane PB Mixture 99.5% Purity Turkmenistan Middle East Autogas Petrochemical Feedstock Propane Butane PB Mixture 99.5% Purity Turkmenistan Middle East Autogas Petrochemical Feedstock
Grades

Propane, butane
or blend

Royal Global Energy supplies LPG in three commercial grades — commercial propane, commercial butane and propane/butane mixture — each graded to its own vapour pressure, volatile residue and purity limits, but drawn from the same high‑quality feedstock.

Composition is held to a tight band on every cargo: propane content sits at 95% minimum for commercial propane, with tight ceilings on butane carryover and moisture at either end.

C3

Commercial propane

Domestic and industrial fuel grade, min. 95% propane, for cylinder filling, heating and autogas.

C3 / C4

PB mixture

Blended LPG at a typical 40–60% split, formulated to destination climate and appliance needs.

C4

Commercial butane

Sourced for bulk handling, min. 95% butane, for cylinder markets and petrochemical use.

Propane content by grade

Target fraction Spec limit
Commercial Propane
95% Min
PB Mixture, typ. 50/50
40–60%
Commercial Butane
5% Max
Propylene / butylenes
5% Max
Free water content
Nil
0% 25% 50% 75% 100%

Composition by liquid volume, %. LPG grades tested to ASTM D2163 (composition) and ASTM D1835 (specification limits).

Reference

Trading specification

Property Limit
Propane content 95% Min
Vapor pressure @ 37.8°C (100°F) 1,434 kPa Max
Volatile residue, 95% evaporated −38.3°C Max
Total sulfur 123 mg/m³ Max
Corrosion, copper strip, 1h @ 37.8°C No. 1 Max
Moisture Nil, Cobalt Bromide Pass
Cargo‑level trading specification. Grade‑specific limits for commercial propane and commercial butane follow below.
Application

Where it's used

Supplied as commercial propane, commercial butane and PB mixture, moving through three core demand channels alongside cylinder and bulk distribution.

Domestic & commercial heating

The primary end use for LPG — cooking, water heating and space heating across households, restaurants and industry.

Autogas & transport fuel

A low‑emission alternative fuel for light vehicles and fleets across established autogas markets.

Petrochemical feedstock

Feeds steam crackers and dehydrogenation units for ethylene, propylene and derivative production.

Propane Butane PB Mix Auto‑grade
Facility & product

Our
operations

RGE LPG gas carrier loading at berth
Export
LPG Gas Carrier — Loading
Pressurized LPG storage spheres
Terminal
Pressurized Storage Spheres
Technical data

Full specifications

Property Limit Test method
Physical form Liquefied gas Visual
Appearance Colourless, odourized Visual
Vapor pressure @ 37.8°C (100°F) 1,434 kPa (208 psig) Max ASTM D‑1267
Volatile residue, 95% evap. temp −38.3°C (−37°F) Max ASTM D‑1837
Residue on evaporation, 100 mL 0.05 mL Max ASTM D‑2158
Relative density @ 15.6°C 0.500–0.510 ASTM D‑1657
Total sulfur 123 mg/m³ Max ASTM D‑2784
Corrosion, copper strip, 1h @ 37.8°C No. 1 Max ASTM D‑1838
Free water content None Visual
Property Limit Test method
Physical form Liquefied gas Visual
Appearance Colourless, odourized Visual
Vapor pressure @ 37.8°C (100°F) 483 kPa (70 psig) Max ASTM D‑1267
Volatile residue, 95% evap. temp 2.2°C (36°F) Max ASTM D‑1837
Residue on evaporation, 100 mL 0.05 mL Max ASTM D‑2158
Relative density @ 15.6°C 0.560–0.585 ASTM D‑1657
Total sulfur 123 mg/m³ Max ASTM D‑2784
Corrosion, copper strip, 1h @ 37.8°C No. 1 Max ASTM D‑1838
Free water content None Visual
Composition ranges for this grade are shown above, under Grades.
Storage

Storage & export loading

LPG moves in pressurized, semi‑refrigerated and fully refrigerated form — from bullet tanks and spheres at the terminal to Midsize and Very Large Gas Carriers loading for export.

Ship‑to‑shore loading is metered and sampled at custody transfer, with vapour return lines balancing pressure across the loading arm throughout.

3,000–22,000 m³
Carrier capacity (MGC / VLGC)
17.5 Bar
Max design pressure
−48°C
Min design temperature
300–600 m³/hr
Typ. loading rate
LPG 17.5 BARG MAX loading arm vapour return
Storage & vessel property Specification
Containment type Fully pressurized / semi‑refrigerated / fully refrigerated
Design pressure Up to 17.5 barg
Design temperature −48°C to +45°C
Material Carbon steel / low‑temperature carbon steel
Loading arm Marine loading arm, vapour return line
Metering Mass flow / Coriolis, custody transfer
Safety systems Relief valves, ESD, gas detection
Odourisation Ethyl mercaptan, per destination requirement
Cargo‑specific loading and storage parameters vary by terminal and vessel; full loadmaster data shared pre‑fixture.
LPG shipping

Transport &
classification

Shipping data for LPG cargoes — propane, butane and PB mixture — moved under IMO gas carrier codes and IMDG/ADR regulations.

LPG — propane, butane or mixture — is classified for maritime and overland transport as UN 1075, Liquefied Petroleum Gas.

Class 2.1, Flammable Gas, carried in dedicated pressurized or refrigerated gas carriers under the IGC Code. No packing group is assigned to gases.

Restricted to tank transport under ADR/RID; road and rail movement permitted only in dedicated pressure tank vehicles and wagons.

Stored in sealed, pressure‑rated tanks, clearly labelled, away from ignition sources and incompatible materials, per site HSE procedures.

Documentation

Download specifications

Full data sheets for each LPG grade, ready to share with your engineering team.

Commercial Propane
Specification sheet · PDF
 Commercial Butane
Specification sheet · PDF
 PB Mixture
Specification sheet · PDF

Need a quote on LPG?

Tell us the grade, volume and destination port — our trading desk will come back with pricing and lead time.