Oil Sludge Pyrolysis Plant

Introduction to pyrolysis of oil sludge

Oil sludge pyrolysis is a method to treat sludge. It makes oil and mud separate by heating sludge. After pyrolysis, it produces pyrolysis oil, reducing soil, and solid residue. This technology could efficiently reduce oil sludge. At the same time, It could also produce useful products.

Physical properties of oil sludge

Source	Category	Water content(%)	Oil content(%)	Solid content(%)
Exploration and development	Working sludge	40-50	10-20	30-40
	Landing sludge	5-10	5-10	80-90
	Clean tank sludge	65-75	15-25	5-10
Oil delivery process	Tank bottom sludge	20-30	60-75	5-10
Refinery enterprise	Grease trap bottom sludge	60-70	15-20	10-20
	Flotation cell scum	60-70	15-20	10-20
	activated sludge	65-90	＜5	5-30

Oil sludge has a high oil content because it contains a lot of petroleum hydrocarbons. It makes the sludge become viscous and difficult to disperse and flow.

Oil sludge contains a large number of organic compounds, part of which are toxic and can cause serious pollution to soil, groundwater and air.

Oil sludge pyrolysis process

STEP 1: Sludge pretreatment: The oil sludge was treated by dehydration and crushing to reduce the sludge’s moisture content and particle size and improve pyrolysis efficiency. This step is important for preventing sludge coking and clogging equipment during pyrolysis.
STEP 2: Feed system: After pretreatment, the sludge is uniformly and continuously pyrolysis reactor through the feed system.
STEP 3: Pyrolytic reaction: The sludge enters the pyrolysis reactor under anaerobic or slightly oxygenated conditions and is heated to a suitable temperature (generally 400-600℃) by an external heat source. During the pyrolysis process, organic matter in the sludge is cracked to produce flammable gas, liquid oil, and solid residue. The precise control of temperature and time, as well as the appropriate agitation, ensures that the pyrolysis reaction proceeds evenly while reducing the occurrence of coking.
STEP 4: Gas-solid separation: The gas and solid residue generated by pyrolysis are separated by equipment such as a cyclone separator. The gas is further purified and could used as fuel or industrial raw materials for power generation, heating, and so on. The solid residue is subjected to subsequent treatment, such as crushing, screening, and drying to facilitate subsequent use or disposal.

The equipment of the oil sludge pyrolysis plant

Oil sludge crusher

The oil sludge crusher is mainly used to crush oil sludge for subsequent treatment. This kind of crusher has a strong crushing capacity and a specific design to suit oil sludge characteristics. The tool is made of high-strength alloy steel with wear resistance and high strength. The crusher ‌frame plate can resist high torque, to ensure the robustness of equipment.

Automatic feeder

The automatic feed machine mainly feeds the pre-treated sludge into the pyrolysis reactor. It automatically transfers the sludge to the pyrolysis reactor, ensuring a continuous and stable feed process. The design of the feeders takes into consideration the ease and efficiency of operation and could adapt to the needs of different sizes of oil sludge treatment.

Pyrolysis reactor

As a core step, a pyrolysis reactor is usually composed of high-temperature and corrosion-resistant material. It has a heating element and a stirring device to ensure it is evenly heated and fully reacts at high temperatures.

Acyclone separator

it is a device used for gas-solid separation. It is mainly used for pyrolysis of oil sludge to realize efficient separation. This separation takes advantage of the centrifugal force generated by the rotating air flow to separate the solid particles from the gas. It has a simple structure, flexible operation, and high efficiency.

The advantages of oil sludge pyrolysis equipment from AGICO

High efficiency

Our company’s sludge pyrolysis technology could quickly treat a variety of oil-contaminated soil to reduce the volume of sludge. The heavy oil components in the sludge are converted into light oil and gas by pyrolysis reaction at high temperatures. The treatment time is short and the treatment efficiency is high.

Resource utilization

Our company’s sludge pyrolysis technology could make the harmful substances in the soil polluted by petroleum transform into utilizable resources. For example, it could refine the heavy oil generated by pyrolysis to gain fuel oil. At the same time, The gas generated by pyrolysis is used for power generation, heating, and so on.

Wide adaptability

Our company’s sludge pyrolysis technology is suitable for the treatment of landing sludge, oil refinery sludge, tank bottom sludge, oil spills on the ground, and other oil sludge.