Pyrolysis Equipment for Oil Sludge

Description

Source	Category	Water%	Oil%
Drilling	Oil base drillings	8-15	15-25
	Working sludge	40-50	10-20
	Landing sludge	5-25	5-10
Crude oil gathering and transporting	Landing sludge	5-25	5-10
Crude oil gathering and transporting	Tank bottom sludge	40-70	20-40
Refining Three Mud	Sediment	60-70	10-15
	Scum	75-90	5-10
	Activated sludge	75-85	＜5

At present, there are more than ten kinds of treatment technologies of sewage sludge in the world, such as landfill, profile control and stratum injection, solidification treatment, thermal desorption, solvent extraction, incineration and coking, biological treatment, and comprehensive utilization.

Take up large area
High operating cost
Limited capacity
Low operating efficiency
Large comsumption of fuel
Serious secondary pollution

Technology	Advantage	Disadvantage	Process Characteristics
Chemical Conditioning- Mechanical Seperation	Suitable for various types of sludge, most of the oil can be recovered	In order to meet the standards, deep processing is required.	Simple and mature
Biological Treatment	Low energy consumption and processing cost	It is difficult to screen, culture and acclimate microorganisms, which requires high oil content of sludge and long treatment period	Complex but mature
Solidification	It is convenient for stacking, storage, and subsequent processing.	Can not completely eliminate the pollution, may leak and pollute groundwater	Simple and mature
Incineration	The treatment is thorough, the capacity reduction effect is obvious, and the heat energy is recovered	High energy consumption and difficulty in long-term stable operation.	Complex but mature
Pyrolysis	More thorough reduction in volume, able to recover part of the crude oil.	High energy consumption and difficulty in long-term stable operation.	Basically mature
Solvent Extraction	High oil recovery rate.	The extraction agent is lost and the processing cost is high	Immature
Chemical Cleaning	The process is simple and easy to implement	The cost is high and the consumption of chemical reagents is large	Mature
Sludge conditioning	Achieve zero emissions, no secondary pollution	The potential hazards are unknown and the compatibility requirements are high	Mature
Electrochemical Treatment	High energy consumption, less investment, no secondary pollution	The processing cycle is long, the crude oil is completely lost, and the area is large	Complex but immature
Supercritical Water Oxidation	The heat energy can be recycled and the pollutants can be completely degraded.	The cost is high and the harm of heavy metals cannot be eliminated	Complex but immature

Technology Advantage

By adopting a combined process, a wide range of oily sludge can be treated, including liquid, semi-solid, and solid oil-containing sludge, as well as oilfield packaging and oil-absorbing felt. This method is more comprehensive compared to other technological processes.
By adopting a combined process, it is possible to selectively choose the appropriate method based on the properties of oily sludge from different sources. This approach reduces the overall operating costs and ensures more reliable operation of the equipment.
By adopting a combined process, the energy consumption is reduced by 40% compared with other pyrolysis technologies for treating semi-solid oily sludge, resulting in a significant improvement in overall treatment efficiency.
The core equipment (drying equipment and pyrolysis carbonization equipment) adopts a skid-mounted design, allowing for flexible on-site treatment of oil-containing drill cuttings and contaminated soil.
After treatment by the pyrolysis carbonization equipment, the oil content in the solid phase can be reduced to as low as 1%, truly achieving harmless treatment.

Carbon Emission Reduction
The amount of flue gas emitted by oxygen-free pyrolysis is only about 1/10 of that of incineration. The pyrolytic gas used for heating the pyrolysis furnace is purified, the harmful factors (smoke, SO2, NO, heavy metals, etc.) emitted of which is almost negligible. Energy Conservation
The pyrolysis temperature is much lower than the incineration temperature. The heat loss of the flue gas from the hot air furnace after multi-gradient utilization is extremely low. The energy consumption of pyrolysis is about 15% of that of incineration.
Carbon Fixation
Biomass is carbonized and stored in soil by oxygen-free pyrolysis, which can solve the problem of straw burning and greatly increase the ability of soil carbon retention and fertilizer preservation.
Inhibit Dioxins and Heavy Metals
Solid waste pyrolysis inhibits the synthesis of dioxins due to the oxygen-free environment. heavy metals in the reducing environment transform from exchangeable state to stable forms such as residues, and are almost entirely solidified in the carbon residue.
Flexible Multi-use with High Yield
The pyrolysis furnace is more suitable for small and medium-scale applications, making project site selection and implementation easier. It also facilitates the non-destructive recovery of metal materials such as copper, aluminum, and iron.

Vary Pyrolysis Process
The oil sludge is heated indirectly in an air-isolated pyrolysis furnace and the decomposition reaction takes place at a controlled temperature of 450-500℃ and organic pyrolytic gas and pyrolytic carbon will be generated.
After the organic pyrolytic gas is discharged from the pyrolysis furnace, the pyrolytic liquid is obtained by two-stage condensation and then processed into fuel oil. The non-condensing gas enters the combustion chamber for heating, and the tail gas is treated to the standard and then discharged.
After the above process, the oily sludge is converted into two products that can be reused: fuel oil and carbon black.

Item	Details
Input Raw Material	Landing sludge, refinery sludge, tank bottom sludge, surface oil spill, drilling cuttings, waste oil-based mud, tank cleaning sludge, oil pit sludge and other oily sludge (HW08）
Final Product	Pyrolytic tar: 1. Used as raw material oil for refinery; 2, directly as fuel oil. Pyrolytic carbon: carbon processing raw material Non-condensing combustible gas (reused in the system) Due to the complex types of raw materials and variable composition, it is recommended that customers provide industrial analysis of raw materials to determine the final product yield.
Capacity	40~140T/D
Operating Model	Continuous Model (feed, discharge, operation); Batch Model
Heating Mathod	Indirect heating, adjustable constant temperature heating
Energy	Non-condensing gas, natural gas
Main furnace material	Stainless steel inner cylinder
Operating Pressure	±500Pa
Pyrolysis Temperature	300~600℃
Automation	PLC/DCS Control, fully automatic intelligent control, low labor intensity
Oil Content in Carbon	＜0.3%, the process can be optimized according to local standards to reach specified limits
Environmental Protection	All emissions are in line with the most stringent local emission index requirements