Huzhou Boiler Factory Co., Ltd. has a development center, an installation company, and three production bases. It has also established close cooperative relationships with numerous key universities and research institutions in the country. New product development is continuous and has been well-received by a wide customer base. We offer industrial and residential coal-fired boilers, oil-fired boilers, gas-fired boilers, biomass boilers, heat transfer oil boilers, waste heat recovery boilers, refrigeration auxiliary equipment, and pressure vessels of categories I, II, and III (including liquefied gas tanks, liquid ammonia tanks, methyl chloride tanks, propane tanks, underground tanks, tower vessels), low-temperature containers (liquid oxygen tanks, liquid nitrogen tanks, liquid argon tanks), heat exchanger units, ground source heat pump units, and more. Over the years, the company has actively implemented an innovative strategy centered around technological, market, and management innovation, accelerating the pace of corporate reform and restructuring, and gradually establishing a modern corporate system that adapts to the socialist market economy system.

Liquefied Petroleum Gas primarily originates from refinery gas and associated gas from oil fields.

I. Obtained from refining plant's natural gas

Refinery gas oil is a byproduct gas produced during the refining and processing of crude oil, with its quantity depending on the production method and processing depth of the refinery, generally accounting for about 4%-10% of the original weight. Currently, the recovery of liquefied petroleum gas from the catalytic cracking gas of refineries is the main source of domestic LPG.

From associated gas obtained from oil fields

Associated gas from oil fields is a byproduct gas produced during the oil extraction process. It is itself a combustible gas existing within the geological structure of the reservoir. This gas contains 10%-40% of propane, butane, pentane, and high-carbon alkanes. During oil extraction, both oil and associated gas are emitted simultaneously. They are separated using gas-oil separation units installed above the oil wells. The associated gas contains approximately 5% of propane and butane components, which can be extracted using absorption methods. This results in high-purity liquefied petroleum gas with low sulfur content. The liquefied petroleum gas supplied by countries such as Europe, the United States, and Japan often falls into this category.

Section 3: Extracted from Natural Gas

Pure natural gas extracted from underground is divided into dry gas and wet gas. Wet gas contains less than 90% methane, with more than 10% of ethane, propane, butane, and other alkanes. After the gas is compressed and fractionated, it is absorbed using diesel spray, then condensed into a liquid state at a pressure of 1.6 MPa in a fractionation tower, forming liquefied petroleum gas.

Safety Procedures for Inverting Drum Handling

1. Prior to production or maintenance procedures, first inspect the pressure, liquid level, and temperature of the filling and emptying tanks. Record these details upon confirmation and then proceed with tank transfer.

2. Determine the liquid discharge volume from the tank and the incoming liquid volume to the receiving tank, and calculate whether the receiving tank's capacity meets the process and safety requirements. Confirm the tank transfer process.

3. The operation procedure is: open the liquid phase valves for in and out of the tank - adjust the vapor phase valve - start the circulating compressor.

4. During decanting, monitor the storage tank's pressure and liquid level changes, and always reverify calculations. Do not exceed the maximum allowable liquid level for the incoming liquid tank.

After decanting is complete, shut off the compressor, close the liquid phase valve, and re-adjust the compressor valve.

6. Thoroughly fill out the operational records.