Abstract: The invention provides an apparatus for thermolysis of waste plastics, particularly polyolefins. The apparatus includes a feeding system, an extruder, a main thermolysis reactor, a dual propeller/mixer housed within the reactor, and a discharging system. The height of the thermolysis reactor is at least 1.5 times bigger than the diameter. The apparatus is arranged such that the extruder follows the plastic feeding system, the thermolysis reactor follows the extruder, and the discharge system follows the thermolysis reactor. The invention also provides a method for using the apparatus for thermolysis of waste plastics. In this method, reaction feedstock, reaction residuals, and reaction products are removed continuously.

Abstract: This invention is regarding an industrial continuous cracking device of rubber. The technical program of this invention is as following: including the outer cylinder and the internal cylinder, and the internal cylinder has promoting mechanism; the heating mechanism is fixed in the outer cylinder or the internal cylinder, and the characteristic of it is: the internal cylinder wall is fixed with heat plates. These heat plates can adopt different forms, such as separated plate, intermittent or continuous helical ribbon, and so on. According to the instance of other structures of the equipment, they not only can be fixed in the internal cylinder, but also can be fixed in the wall of the internal cylinder. The simple structure used in this invention has realized the effect of improving the heat efficiency, reducing the energy consumption and decreasing the running cost.

Abstract: An apparatus for recycling or decompstiong waste plastic is decomposed in a diluent such as hot oil through actions involving free readical precursors, such as polyvinyl chloride or polyurethane is achieved at low temperatures. The thermal decompostion (or pyrolysis) reaction is for about 1 hour at 375.degree. C. annd usable products, such as distillate, coke and oil are recovered. Additonally the diluent my ber recycled within the apparatus.

Abstract: A support for a battery of coking furnaces with regenerators has a plurality of waste heat passages formed beneath the regenerators and extending in a longitudinal direction of the battery, a foundation formed by a floor member and also by wall members of the waste heat passages, a further supporting plate slidingly supported on the walls and repeatedly subdivided transversely to the longitudinal direction of the battery so as to form a plurality of plate portions, and two longitudinal bars each located at a machine side and at a coke side of the battery and slidingly supported on consoles of the foundation, wherein each of the longitudinal bars engages the plate portions of the furnace supporting plate and fixes them in their positions.

Abstract: A process for preheating oil shale in which the oil shale is partially preheated to 200.degree. F. to 400.degree. F. in a first lift pipe followed by final preheat to temperatures of between 400.degree. F. and 650.degree. F. in a second lift pipe. Hydrocarbons released from the oil shale in both the first and second lift pipes are incinerated in an incinerator/recuperator. In order to provide adequate incineration and combustion of the hydrocarbons released in the first, low temperature lift pipe, the entrainment gas or first gas stream is a low Btu gas preferably produced from conventional gasification of carbonaceous material. The low Btu entrainment gas along with released hydrocarbons is utilized as a fuel in the incinerator/recuperator and also may be utilized for other combustion applications in oil shale pyrolysis processing. In oil shale pyrolysis carried out with ceramic balls as heat exchange bodies, a portion of the low Btu entrainment gas is conveniently utilized to fuel the ball heater.

Abstract: A coke oven adapted to be regeneratively heated by lean gas or rich gas at choice, characterized in that control flaps are disposed in air inlet chests for the coke oven regenerator and are connected through linkages to a common actuating rod extending along the coke oven battery. Reciprocation of the actuating rod in one direction or the other will open or close all flaps essentially simultaneously to rapidly change the quantity of combustion-supporting air supplied to the regenerator, depending upon whether lean or rich gas is being used.

Abstract: The waste heat resulting from a coke oven operation is recovered in a two-stage proceeding. The waste gas is first cooled to not more than about 400.degree. C. in a recuperator or regenerator of the oven to principally utilize the heat radiation of the gas. Then, in a second stage, the gas is subjected to further cooling in a separate heat exchanger to principally exploit the heat convection of the gas. The process permits to recover waste gas on both basic principles of waste recovery, that is the recovery by radiation and the recovery by convection.