Systems and methods for safe on-line pigging decoking of a coker furnace tubes and which also permits on-line spalling operations.

Plastic conversion vessels such as pyrolytic reactors convert plastic waste materials such as polymers, or hydrocarboneous material, or both, via in situ chemical reactions comprising cracking, recombination, reforming, recracking, and the like, to usable chemical compounds such as naphtha, diesel fuel, heavy oil, wax, and the like. Inherent within the polymers and/or carbonaceous material are generally solid, inert residues such as various fillers, pigments, flame retardants, silica, aluminum, talc, glass, clay, and so forth. Such solid inert residues (SIR) must be treated to remove residual volatile organic material therefrom in order to meet acceptable environmental standards and/or limits. A heated dryer for treating the SIR comprises heating units to remove excessive volatile organic material therefrom as when moved along a conveyor that transfers said material to a collection area. The collection area comprises one or more pistons that are capable of compacting and discharging said SIR material. Another collection area embodiment comprises a plurality of plungers that transfer the SIR material from said collection area to a plunger collection area, and subsequently to a collection container.

A method of removing an obstruction of coke built up in a riser of a fluid catalytic converter and of cleaning the riser involves using a suspended centralizer and narrowly angled nozzles for first hydroblasting a drainage orifice in the obstruction, adjusting guide arms and manipulating the suspended apparatus to allow enlargement of the orifice, further adjusting the guide arms and enlarging the angles of the nozzles to work the remaining coke built up.

An apparatus for raising and lowering a cutting tool within a decoking drum, a decoking system and a method of raising and lowering a decoking system cutting tool. Instead of using metallic ropes, chains, or a self-propelled gear-based approach, non-metallic belts are secured at respective ends to a crosshead and one or more counterweights to enable vertical movement of the crosshead that in turn permits vertical movement of the cutting tool throughout the height of the drum. A motorized pulley system controls the movement of the belt, and preferably avoids having the motor be carried by the crosshead. The belts on each pulley are preferably arranged as cooperative sets so that within each set, both primary load belts and secondary load belts are present. Enhanced engagement between at least the primary load belts and the pulleys promotes greater load-bearing capability, while the secondary load belts are sufficiently strong to ensure positional stability of the crosshead and decoking tool upon damage to or failure of one or more of the primary load belts.

A solid hazardous waste pyrolysis process and full-set equipment including a pyrolysis box for hazardous waste and intermittent pyrolysis equipment. The equipment includes an outer and rotatable inner barrel; at least one pyrolysis material placement area is formed in the inner barrel; the placement area formed by multiple groups of guide plates circumferentially arranged on the inner wall of the barrel and baffles arranged on the top of plates at the two ends; each group of plates include vertical and sieve plates that are connected. Hazardous waste placed in the pyrolysis box; a box body is placed between the baffles of the pyrolysis material placement areas; after a pyrolysis device is sealed, heat is carried out to start pyrolysis; the box body rotates at the bottom of the inner barrel; and a material is heated, melts and falls onto the reaction medium below, completing pyrolysis of solid hazardous waste.

A solid hazardous waste pyrolysis process and full-set equipment including a pyrolysis box for hazardous waste and intermittent pyrolysis equipment. The equipment includes an outer and rotatable inner barrel; at least one pyrolysis material placement area is formed in the inner barrel; the placement area formed by multiple groups of guide plates circumferentially arranged on the inner wall of the barrel and baffles arranged on the top of plates at the two ends; each group of plates include vertical and sieve plates that are connected. Hazardous waste placed in the pyrolysis box; a box body is placed between the baffles of the pyrolysis material placement areas; after a pyrolysis device is sealed, heat is carried out to start pyrolysis; the box body rotates at the bottom of the inner barrel; and a material is heated, melts and falls onto the reaction medium below, completing pyrolysis of solid hazardous waste.

A material transfer system for transferring material into or out of a pyrolysis system is described. The system includes a first conduit comprising a first inlet and a first outlet. a store, and a second conduit comprising a second inlet and a second outlet. The first conduit is configured to receive, at the first inlet, the material and transfer the material, through the first outlet, to the store. The store is configured to store the material. The second conduit is configured to: receive, at the second inlet, the material, transfer the material, and output the material through the second outlet.

A material transfer system for transferring material into or out of a pyrolysis system is described. The system includes a first conduit comprising a first inlet and a first outlet. a store, and a second conduit comprising a second inlet and a second outlet. The first conduit is configured to receive, at the first inlet, the material and transfer the material, through the first outlet, to the store. The store is configured to store the material. The second conduit is configured to: receive, at the second inlet, the material, transfer the material, and output the material through the second outlet.

A system for processing a material includes a pre-processing module configured to receive the material, mechanically stress the received material, and output the mechanically stressed material. The system also includes a pyrolysis module communicatively coupled to the pre-processing module and downstream of the pre-processing module. The pyrolysis module is configured to receive the mechanically stressed material from the pre-processing module and to perform a pyrolysis process on the received mechanically stressed material, thereby to produce one or more pyrolysis products.

An apparatus for raising and lowering a cutting tool within a decoking drum, a decoking system and a method of raising and lowering a decoking system cutting tool. Instead of using metallic ropes, chains, or a self-propelled gear-based approach, non-metallic belts are secured at respective ends to a crosshead and one or more counterweights to enable vertical movement of the crosshead that in turn permits vertical movement of the cutting tool throughout the height of the drum. A motorized pulley system controls the movement of the belt, and preferably avoids having the motor be carried by the crosshead. The belts on each pulley are preferably arranged as cooperative sets so that within each set, both primary load belts and secondary load belts are present. Enhanced engagement between at least the primary load belts and the pulleys promotes greater load-bearing capability, while the secondary load belts are sufficiently strong to ensure positional stability of the crosshead and decoking tool upon damage to or failure of one or more of the primary load belts.