摘要:
The present invention relates to a process for converting mixed waste plastic into liquid fuels by catalytic cracking. The process comprises the steps of introducing mixed waste plastic and a catalyst comprising an amorphous-type catalyst within a reactor; allowing at least a portion of the mixed waste plastic to be converted to liquid fuels within the reactor; and removing a product stream containing said liquid fuels from the reactor.
摘要:
The invention relates to a method for recovering hydrocarbons from plastic wastes, in particular polyolefin-rich waste, by means of purely thermolytic cracking without the use of catalysts, comprising melting the plastic waste in two heating devices (3) and (4), wherein a recycle stream derived from the cracking reactor (5) and purified in a separator system (8, 9) is admixed with the molten plastic waste from the heating device (3). The mixed plastic stream is further heated in the second heating device (4), and from there is guided into the cracking reactor (5), where the plastic materials are cracked, and by means of subsequent distillation are separated into diesel and low boilers. A special entry system allows the prior separation of water and acidic gases, and the saving of inert gas. The invention further relates to a system for carrying out the method.
摘要:
The present invention relates generally to methods for producing detergent compounds from waste plastic feedstocks. More specifically, the invention relates to methods for producing detergent intermediates, including alkylbenzenes, paraffins, olefins, oxo alcohols, and surfactant derivatives thereof from waste plastic feedstock.
摘要:
Process for the production of bio-oil from biomass comprising the following steps: (a) feeding a biomass to a liquefaction reactor, said biomass having a protein content higher than or equal to 1% by weight, preferably ranging from 5% by weight to 50% by weight, with respect to the weight (dry weight) of said biomass, a lipid content higher than or equal to 1% by weight, preferably ranging from 5% by weight to 60% by weight, with respect to the weight (dry weight) of said biomass, a pH higher than or equal to 4, preferably ranging from 4.5 to 10; (b) subjecting said biomass to liquefaction operating at a temperature ranging from 220°C to 350°C, preferably ranging from 230°C to 310°C, even more preferably ranging from 240°C to 300°C, at a pressure higher than the vapour pressure of water at the temperature in which said liquefaction is carried out, for a time ranging from 30 minutes to 300 minutes, preferably ranging from 50 minutes to 270 minutes, obtaining a mixture comprising an oily phase consisting of bio-oil, a solid phase, a gaseous phase and an aqueous phase. The bio-oil (or bio-crude) thus obtained can be advantageously used as such, or, after optional upgrading treatments, in the production of biofuels or biocombustibles that can, in turn, be used as such or in a mixture with other fuels, for motor vehicles. Or, said bio-oil (or bio-crude) can be used in a mixture with fossil fuels (fuel oil, coal, etc.) for the generation of electric energy or heat.
摘要:
The present invention provides a process for producing liquid hydrocarbon products from solid biomass and/or residual waste feedstocks, said process comprising the steps of: a) a first stage of hydropyrolysing the solid feedstock in a hydropyrolysis reactor vessel in the presence of molecular hydrogen and one or more deoxygenation catalysts, producing a product stream comprising partially deoxygenated hydropyrolysis product, H 2 O, H 2 , CO 2 , CO, C 1 - C 3 gases, char and catalyst fines; b) removing said char and catalyst fines from said product stream; c) a second stage of hydroconverting said partially deoxygenated hydropyrolysis product in a hydroconversion reactor vessel in the presence of one or more hydroconversion catalysts and of the H 2 O, CO 2 , CO, H 2 , and C 1 - C 3 gas generated in step a), producing a vapour phase product comprising substantially fully deoxygenated hydrocarbon product, H 2 O, CO, CO 2 , and C 1 – C 3 gases; d) condensing the vapour phase product of step d) to 20 provide a liquid phase product comprising substantially fully deoxygenated C4+ hydrocarbon liquid and aqueous material and separating said liquid phase product from a gas phase product comprising H 2 , CO, CO 2 , and C 1 – C 3 gases; e) removing the aqueous material from the substantially fully deoxygenated C4+ hydrocarbon liquid; and f) a third stage comprising combining an aliphatic hydrocarbon precursor or an aromatic hydrocarbon precursor with at least a portion of the substantially fully deoxygenated C4+ hydrocarbon liquid and co- processing the resultant liquid in a hydroprocessing reactor vessel in the presence of hydrogen and one or more hydroprocessing catalysts.
摘要:
An integrated process for the conversion of waste plastics to high value products. The integrated process allows for operation with a hydroprocessing reactor which provides simultaneous hydrogenation, dechlorination, and hydrocracking of components of a hydrocarbon stream to specifications which meet steam cracker requirements.
摘要:
Bei einem Verfahren zur Aufbereitung und/oder Rückgewinnung und/oder Wiederverwertung von Rückständen insbesondere aus Raffinerieprozessen, welche eine Grundsubstanz, insbesondere mit Kohlenwasserstoff, wie zum Beispiel Kerosin, und Öl sowie metallische Rückstände enthalten, sollen die Rückstände in einen ersten Reaktor (5) eingegeben werden, in welchem ein Teil der flüchtigen Bestandteile verdampft und danach in einen zweiten Reaktor (10) übergeführt und dort durch Kühlung, die optional mit Wasserverdampfung unterstützt wird, verfestigt werden.
摘要:
The present invention relates to a saturator. The present invention further relates to a method for reusing a waste water stream from a Fischer-Tropsch reactor. The invention further relates to system for recycling waste water from a Fischer-Tropsch reactor preferably within a gas-to-liquids (GTL) plant.
摘要:
Various techniques are disclosed for pretreating municipal solid waste (MSW) and other biomass-containing feedstocks that may be of a poorer quality and consequently more difficult, or even impossible, to convert to higher value liquid products (e.g., transportation fuels) using conventional processes. Such conventional processes may otherwise be satisfactory for the conversion of the biomass portion of the feedstock alone. The pretreatment of biomass-containing feedstocks may generally include steps carried out prior to a hydropyrolysis step and optionally further steps, in order to change one or more characteristics of the feedstock, rendering it more easily upgradable.
摘要:
The present invention provides a process for producing liquid hydrocarbon products from a solid biomass feedstock, said process comprising the steps of: a) providing in a first hydropyrolysis reactor vessel a first hydropyrolysis catalyst composition, said composition comprising one or more active metals selected from cobalt, molybdenum, nickel, tungsten, ruthenium, platinum, palladium, iridium and iron on an oxide support, wherein at least a portion of the active metals are present in fully reduced metallic form; b) contacting the solid biomass feedstock with said first hydropyrolysis catalyst composition and molecular hydrogen in said first hydropyrolysis reactor vessel at a temperature in the range of from 350 to 600°C and a pressure in the range of from 0.50 to 7.50MPa, to produce a product stream comprising partially deoxygenated hydropyrolysis product, H2O, H2, CO2, CO, C1 - C3 gases, char and catalyst fines; c) removing said char and catalyst fines from said product stream; d) hydroconverting said partially deoxygenated hydropyrolysis product in a hydroconversion reactor vessel in the presence of one or more hydroconversion catalyst and of the H2O, CO2, CO, H2, and C1 - C3 gas generated in step a), to produce a vapour phase product comprising substantially fully deoxygenated hydrocarbon product, H2O, CO, CO2, and C1 – C3 gases.