摘要:
Liquid phase hydrogenation of the liquid products of the low temperature carbonization of waste yields products which are free of polycyclic aromatic hydrocarbons and chlorinated hydrocarbons. The hydrogenation may be catalyzed by the low temperature coke produced in the low temperature carbonization.
摘要:
A process for the hydrogenative conversion of mixtures of oil and organic waste products, comprising the steps of:(i) preparing a hydrogenation mixture comprising(a) a heavy oil, residual oil, or mixtures thereof, or(b) a used oil, a waste oil or mixtures thereof, or mixtures of (a) and (b), and(c) one or more organic waste products containing natural or synthetic organic compounds comprising uncrosslinked or crosslinked carbon chains;(ii) contacting said hydrogenation mixture with 0.1-10 wt. % of an additive selected from the group consisting of high surface area suspended solids containing carbon, red mud, iron oxides, electrostatic filter dusts and cyclone dusts, wherein said additive comprises particles in two different particle size ranges, a fine particle fraction with a particle size 90 microns or less, and a coarse particle fraction with a particle size between 100-1000 microns; and(iii) hydrogenating said contacted mixture at a hydrogen partial pressure of 50-350 bar, a temperature of 250.degree.-500.degree. C. and a gas/oil ratio of 100 to 10,000 m.sup.3 /t of said hydrogenation mixture calculated at (STP), wherein the weight ratio (a)/(b), (a)/(c), or (a) to (b)+(c) is in the range of 100:1 to 1:15.
摘要:
A catalyst for the hydrogenation of a hydrocarbon material which is a member selected from the group consisting of red mud, iron oxides, iron ores, hard coals, lignites impregnated with heavy metal salts, carbon black, soots from gasifiers, and cokes produced by the hydrogenation of virgin residues, the catalyst being comprised of at least two separate particle size fractions such that the combined fractions have a particle size distribution between 0.1 and 2,000 microns with 10-40 wt. % of the particles having a particle size greater than 100 microns, and the mixture of fractions not being represented by a straight line when the accumulative weight of the particles vs. particle size which is plotted on log (minus log) vs. log graph paper has a correlation coefficient R.sup.2 less than 0.96 as determined from the equation: ##EQU1## wherein n is the number of experimental points, y is ln [-ln (n/1000)] and x is ln (dp), wherein dp is the particle size (.mu.m) of the particles.
摘要:
Process for the hydrogenative conversion of heavy oils and residual oils, used oils and waste oils, mixed with sewage sludge in a typical liquid phase hydrogenator with gases containing hydrogen, with the addition of a finely ground substance that preferably has a large internal surface area, as additive. The additive is added in two different particle size ranges so that a portion of the additive is present as a fine particle size fraction iwth a particle size of 90 .mu.m or less and another portion as a coarse particle size fraction with a particle size of 100 .mu.m to 2000 .mu.m, preferably 100 to 1000 .mu.m with the procedure being carried out with a weight ratio of raw oils to sewage sludge used of 10:1 to 1:1.5. Conversion of vacuum residue of a Venezuelan heavy oil with the addition of 2 wt. % of lignite coke as additive and with the admixture of 10 wt. % industrial or municipal sewage sludge in a liquid phase hydrogenator to obtain useful liquid products in particular, and extensive conversion of the organic fractions of the sewage sludge.
摘要:
A process for the hydrogenation of heavy oils, residual oils, waste oils, used oils, shell oils, and tar sand oils by hydrogenating a slurry of the oil at a partial hydrogen pressure of 50-300 bar, a temperature of 250.degree.-500.degree. C., a space velocity of 0.1-5 T/m.sup.3 h, and a gas/liquid ratio of 100-10000 Nm.sup.3/ T, wherein the additive comprises two different grain size portions, a fine grain portion having a grain size of 90 microns or less and a coarse grain portion having a grain size of 100-1000 microns.
摘要:
The invention relates to a device for depolymerizing used and waste plastics, comprising a closed reactor and a circulation system the mildly heating of the reactor contents connected to the reactor, as well as to a process for depolymerizing used and waste plastics. To protect the circulation system from erosion by solid particles contained in the reactor contents, the reactor is designed so that the reactor contents drawn off into the circulation system traverse a riser section integrated into the reactor for removing fairly coarse solid particles having correspondingly high settling rate before entry into the take-off line.
摘要:
A system for compensating forces acting on a rapidly moving vehicle transversely to its driving direction, such as transverse acceleration forces and yaw angle forces as well as possibly roll movements, by means of torques applied to the steering wheel, in which measured magnitudes of certain degrees of freedom which are detected as second derivatives with respect to time while driving, are combined with each other by an information converter and are converted into a torque which is transmitted in bypassing relationship to the servo-steering device and which signals by its occurrence to the driver the presence of disturbing forces and causes the driver to apply counter-forces; the servo-steering device is thereby so constructed that no torque stemming from the steerable wheels is transmitted to the steering wheel.
摘要:
A process is disclosed for processing used or waste plastic materials in order to recover chemical raw materials and liquid fuel components by depolymerisation of the used materials, which are transformed into a pumpable and into a volatile phase. The volatile phase is separated into a gaseous phase and a condensate or condensable depolymerisation product, which are refined by standard usual procedures. The pumpable phase remaining once the volatile phase is separated is subjected to liquid phase hydrogenation, gasification, low temperature carbonisation or to a combination of said processes.
摘要:
According to the process described, old or waste plastics are depolymerized into a pumpable phase and a volatile phase to allow recovery of chemical raw materials and liquid fuel components. The volatile phase is separated into a gaseous phase and a condensate. In order to simplify the process in comparison with the state of the art, the depolymerised product remaining after the volatile phase is separated is also heated together with the condensate or condensate fractions in the presence of hydrogen under pressure and is subjected to hydrotreating, after non-boiling components are removed, to produce syncrude.
摘要:
Regulation of the driving and braking of vehicles equipped with a plurality of single wheel drive and brake unit modules, controlled by control processing circuitry, that act on the guiding function of the wheels includes coupling in pairs control processing circuitry associated with the individual single wheel drive and brake unit modules, the pairs of modules being symmetrically disposed with respect to a plane of the vehicle. The degree of coupling is dynamically changed.