US3915844A - Method for treatment of heavy oils - Google Patents
Method for treatment of heavy oils Download PDFInfo
- Publication number
- US3915844A US3915844A US419657A US41965773A US3915844A US 3915844 A US3915844 A US 3915844A US 419657 A US419657 A US 419657A US 41965773 A US41965773 A US 41965773A US 3915844 A US3915844 A US 3915844A
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- US
- United States
- Prior art keywords
- metal compound
- alkali metal
- coke
- gasification
- coking
- Prior art date
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- Expired - Lifetime
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 239000000295 fuel oil Substances 0.000 title abstract description 16
- 239000000571 coke Substances 0.000 claims abstract description 97
- 150000001339 alkali metal compounds Chemical class 0.000 claims abstract description 72
- 238000002309 gasification Methods 0.000 claims abstract description 59
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 13
- 239000001301 oxygen Substances 0.000 claims abstract description 13
- 238000004939 coking Methods 0.000 claims description 43
- 239000002245 particle Substances 0.000 claims description 43
- 229930195733 hydrocarbon Natural products 0.000 claims description 22
- 150000002430 hydrocarbons Chemical class 0.000 claims description 22
- 239000004215 Carbon black (E152) Substances 0.000 claims description 17
- 150000001341 alkaline earth metal compounds Chemical class 0.000 claims description 10
- 230000015572 biosynthetic process Effects 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 6
- 150000004649 carbonic acid derivatives Chemical class 0.000 claims description 5
- 239000003054 catalyst Substances 0.000 claims description 5
- 150000004679 hydroxides Chemical class 0.000 claims description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 4
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- 229910052783 alkali metal Inorganic materials 0.000 claims description 4
- 150000001340 alkali metals Chemical class 0.000 claims description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 4
- 239000000292 calcium oxide Substances 0.000 claims description 3
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 3
- 239000010459 dolomite Substances 0.000 claims description 3
- 229910000514 dolomite Inorganic materials 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 2
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 claims description 2
- 239000001095 magnesium carbonate Substances 0.000 claims description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 claims description 2
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 2
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 2
- 239000003921 oil Substances 0.000 abstract description 54
- 230000000694 effects Effects 0.000 abstract description 12
- 238000006477 desulfuration reaction Methods 0.000 abstract description 6
- 230000023556 desulfurization Effects 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 description 43
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 24
- 239000011593 sulfur Substances 0.000 description 24
- 229910052717 sulfur Inorganic materials 0.000 description 24
- 239000007789 gas Substances 0.000 description 21
- 230000000052 comparative effect Effects 0.000 description 15
- 238000004821 distillation Methods 0.000 description 9
- 239000010779 crude oil Substances 0.000 description 7
- 239000010426 asphalt Substances 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 6
- 239000010419 fine particle Substances 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 239000011734 sodium Substances 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 3
- 238000006356 dehydrogenation reaction Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- 229910052708 sodium Inorganic materials 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910052977 alkali metal sulfide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 229960004424 carbon dioxide Drugs 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000011295 pitch Substances 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- -1 sulfide compound Chemical class 0.000 description 2
- 150000003464 sulfur compounds Chemical class 0.000 description 2
- 239000011269 tar Substances 0.000 description 2
- 150000003568 thioethers Chemical class 0.000 description 2
- 241000237519 Bivalvia Species 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 235000020639 clam Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 150000002019 disulfides Chemical class 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000007511 glassblowing Methods 0.000 description 1
- 230000003179 granulation Effects 0.000 description 1
- 238000005469 granulation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 150000002898 organic sulfur compounds Chemical class 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 102200118166 rs16951438 Human genes 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000004227 thermal cracking Methods 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B55/00—Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material
- C10B55/02—Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material with solid materials
- C10B55/04—Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material with solid materials with moving solid materials
- C10B55/08—Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material with solid materials with moving solid materials in dispersed form
- C10B55/10—Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material with solid materials with moving solid materials in dispersed form according to the "fluidised bed" technique
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/482—Gasifiers with stationary fluidised bed
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0903—Feed preparation
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0946—Waste, e.g. MSW, tires, glass, tar sand, peat, paper, lignite, oil shale
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0956—Air or oxygen enriched air
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0959—Oxygen
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0973—Water
- C10J2300/0976—Water as steam
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0983—Additives
- C10J2300/0996—Calcium-containing inorganic materials, e.g. lime
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
- C10J2300/1807—Recycle loops, e.g. gas, solids, heating medium, water
Definitions
- the present invention relates to method for treatment of heavy oils.
- sulfur contained in the heavy oil at such a high content as 3 to 7% by weight is incorporated as hydrogen sulfide in the cracked gas and as an organic sulfur compound in the cracked oil and sulfur is further concentrated in the coke and the sulfur content is twice as high as in the starting oil.
- the majority of sulfur left in the coke is sandwiched between carbon lattice layers to form compounds together with carbon. Therefore, in case such coke is gasified, the porosity of the coke is damaged by such sulfur compounds and it is therefore not expected to increase the surface area, though the increase of the surface area is very advantageous for the coke gasification reaction.
- This invention is to provide a method for the treatment of heavy oils comprising coking a heavy oil such as asphalt, gasifying the resulting coke and thus recovering a readily desulfurizable light oil and a gas,
- alkali metal compound used in the instant specification are meant carbonates, hydroxides and oxides of alkali metals such as Na, Li and K, compounds convertible to such compounds and mixtures thereof.
- a powdery or granular alkali metal compound in the heated state is fed to the coker independently from the starting oil and it is utilized as seed particles capable of promoting formation of granular coke, whereby an effect of desulfurization of the starting oil and an effect of forming readily gasifiable coke can be attained, and then the resulting granular coke is gasified with use of steam and oxygen or air.
- mist or vapor of the starting oil adheres on fine particles of the alkali metal compound and the volatile components of the starting oil are evaporated by the heat of the alkali metal compound, resulting in formation of fine particles of the coke. Further, fine particles of the alkali metal compound and mist or vapor of the starting oil are further stuck to the so formed fine particles of the coke and thus formed particles are stuck to each other to grow into larger particles and dry distillation is also performed at the same time.
- coke particles are formed in the form of aggregates of fine cokes which each coke is formed by utilizing one or more particles of the alkali metal compound as the seed.
- the heat for gasification of volatile components is supplied from the alkali metal compound which is fed in the heated state to the coker and instantaneously incorporated and introduced into the starting oil, and therefore, the volatile components are transferred from the interior of oil drops toward the outer surface while undergoing dehydrogenation. Since the volatile components are thus gasified and they undergo the dehydrogenation reaction more extensively than in the conventional fluid coking process, the resulting coke has a better porosity and a low bulk density, which are charateristic properties of the coke obtained according to this invention.
- the alkali metal compound acts not only as the seed for formation of coke particles but also as the heating medium for promoting the dehydro- 'genation reaction in asphalt and gasifying volatile components in asphalt. Therefore, the granulation effect attained in the coker is much enhanced as compared with the case where only the starting oil is fed to the coker.
- the sulfur components contained in the starting heavy oil are combined with the alkali metal compound just before formation of coke during the advance of the decomposition reaction and alkali metal sulfide compounds are formed, with the result that sulfur is not contained in the cracked gas or light cracked oil formed by coking of the heavy hydrocarbon, or in the resulting coke. If sulfur be contained in the resulting coke, its constant can be maintained at a very low level. It has been confirmed that during the coking reaction the alkali metal compound promotes the dehydrogenation reaction in the starting heavy hydrocarbon.
- the hydrogen content can be increased in the cracked gas, and also the oxygen content in the coke is 4 to by weight, which value is much higher than the oxygen content of about 1% by weight or less in ordinary cokes.
- the reaction is conducted at a temperature of about 800 to about 1200C, preferably 900 to 1000C.
- the coke prepared in the coker, which contains the alkali metal compound and a small amount of sulfide thereof is partially burnt with an aid of an oxidant such as oxygen or air and the unburnt coke is heated by the heat of this partial combustion, with the result that the coke is gasified by the reaction between the so heated high temperature coke and steam.
- the alkali metal compound fed to the coker and its sulfide is forwarded to the gasification furnace in the form of the seed of the coke particle or in the state stuck to the formed coke particle.
- Such alkali metal compound and its sulfide exhibit a catalytic activity for forming such gases as carbon monoxide, hydrogen, car bon dioxide and methane by the reaction between the heated coke and steam, and therefore, the gasification of the coke can be performed advantageously.
- the alkali metal compound there are employed carbonates and hydroxides of Na, Li, K and the like. They can be used singly or in the form of admixtures of two or more of them.
- the alkali metal compound can be directly fed to the coker as it is. It is also possible to feed the alkali metal compound in the state supported on an inorganic refractory or an alkaline earth metal compound.
- the inorganic refractory there can be mentioned, for example, alumina,glasse, zirconia, chamotte, etc.
- the alkaline earth metal compound there can be mentioned, for example, CaO, CaCO MgO, MgCO dolomite, etc. We have found that when the alkali metal compound is employed in the state supported on one or more of these compounds, the effect by addition of the alkali metal compound can be greatly enhanced.
- the alkali metal compound to be fed to the coker as the seed for formation of particles and for reducing the sulfur content in the cracked products is utilized as the gasification catalyst in the gasification furnace and the sulfurized alkali metal compound is regenerated to the original alkali metal compound by an action of the reducing gas formed by the gasification reaction, which is recycled to the coker and used again as the heating medium for supplying the heat to the coker.
- the method of this invention is characterized in that the alkali metal compound heated at a temperature higher by at least C than the inside temperature of the coker is fed to the coker as the seed particle for formation and growth of granular coke independently from the starting heavy oil.
- numerous fine particles of the alkali metal compounds are mingled in the heavy oil as seed particles for formation of coke particles at the step of coking of the heavy oil, whereby coke having a good porosity and being readily gasifiable can be obtained.
- the alkali metal compound acts as the desulfurizing agent for reducing the sulfur content mainly in the cracked gas and light cracked oil.
- the alkali metal compound acts as a catalyst for promoting the gasification of coke in the gasification furnace, and it is regenerated and heated in the gasification furnace and recycled to the coker as the heating medium.
- the alkali metal compound exhibits collective effects.
- the main feature of this invention resides in the use of an alkali metal compound in the process in which coke obtained by treating a heavy hydrocarbon in a fluidized bed coker is gasified according to the fluidized bed method.
- the drawing is a simple flow sheet illustrating the method of this invention.
- the alkali metal compound is fed from an appropriate position 9 of a coker l independently from the starting oil fed from a position 4 of the coker.
- the alkali metal compound is fed in the state heated at a temperature higher by 100 to 500C than the interior temperature of the coker.
- the light cracked oil and cracked gas are withdrawn through a discharge system 7 and are treated at the subsequent steps.
- a gasification furnace 2 cokeformed in the coker l and transferred through a transfer conduit 12 is gasified at 800 to 1200C, preferably 850 to ll00C, by a gas, such as oxygen and steam, fed from a gas introduction system 5, and the resulting gas is withdrawn from a discharge system 8 and treated at the subsequent steps.
- a gas such as oxygen and steam
- the alkali metal compound or sulfide fed to the gasification furnace in the state stuck to, or incorporated in the coke is partially regenerated by the so formed gas.
- the alkali metal compound acting as the catalyst and regenerated in the gasification furnace 2 is then withdrawn from the gasification furnace.
- the flow 6 recycled to the coker contains a large amount of unburnt coke and has a large particle size, it fails to act as the seed in the coker.
- the so heated alkali metal compound is fed to the coker.
- EXAMPLE 1 Reduced pressure distillation residual oil of Gattisalan crude oil, which has properties shown in Table l, was fed at a rate of 3.0 kg/hr, together with fluidizing steam fed at a rate of 3.0 kg/hr, to a reaction vessel heated by an Elema type electric furnace, which comprises a stainless steel round tube having a length of 850 mm, a reaction zone inner diameter of 3 inches and an upper free board inner diameter of 6 inches and being equipped with a glass-blowing bottom opening having a reverse frustoconical form, an oil-blowing tube, a pipe for withdrawal of coke particles, a gas discharge pipe and a thermocouple-protecting pipe.
- Elema type electric furnace which comprises a stainless steel round tube having a length of 850 mm, a reaction zone inner diameter of 3 inches and an upper free board inner diameter of 6 inches and being equipped with a glass-blowing bottom opening having a reverse frustoconical form, an oil-blowing tube, a pipe for withdrawal of co
- An equimolar powdery mixture of Na CO and CaCO heated at 620C was continuously fed at a rate of 0.5 kg/hr to the reaction vessel from a powder feed pipe mounted on the upper portion of the reaction vessel indpendently from the starting oil and steam.
- coking of the starting oil was conducted at a reaction temperature of 500C for an average coking time of minutes according to the method using a fluidized bed composed mainly of coke particles.
- the resulting granular coke was continuously withdrawn from the reaction vessel and as a result of tests of the properties of the product, it was found that the product had an average particle size of 650 microns, a sulfur content of 0.4% by weight and a surface area of 230 m /gr.
- the coke was packed in a cylindricalglasse reaction tube having an inner diameter of 3 inches and length of 750 mm, and steam was introduced thereinto at a rate of 120 gr/hr while the reaction tube was heated from the outside by means of an Elema type electric furnace.
- the coke was gasified at 850C, 1000C and l200C to examine the influence of the gasification temperature on the degree of advance of the gasification reaction. It was found that the time required for completion of gasification of the coke was minutes at 850C, 31 minutes at 1000C and 10 minutes at 1200C.
- EXAMPLE 2 The same reduced pressure distillation residual oil of Gattisalan crude oil as used in Example 1 was employed as the starting oil, and the same fluidized bed type reaction vessel as used in Example 1 was employed. An equimolar mixture of Na CO supported on alumina powder having a particle size not exceeding 30 microns was heated at 620C and was continuously fed at a rate of 0.5 kg/hr to the reaction vessel from a powder feed pipe mounted on the upper portion of the reaction vessel independently from the starting oil and steam. In this manner, coking of the starting oil was conducted at a reaction temperature of 500C for an average coking time of 20 minutes according to the method using a fluidized bed composed mainly of coke particles.
- the resulting granular coke was continuously withdrawn from the reaction vessel, and as a result of tests of properties of the product, it was found that the product has an average particle size of 270 microns, a sulfur content of 0.5% by weight and a surface area of 200 m /gr.
- COMPARATIVE EXAMPLE 1 With use of the same fluidized bed type reaction vessel as employed in Example 1, the same reduced pressure distillation residual oil of Gattisalan crude oil as employed in Example 1 was coked at a starting oil feed rate of 3.0 kg/hr and a fluidizing steam feed rate of 3.0 kg/hr, at a reaction temperature of 500C for an average coking time of 20 minutes according to the method using a fluidized bed composed of coke particles.
- the resulting granular coke was continuously withdrawn from the reaction vessel and as a result of tests of properties of the product it was found that the product has an average particle size of 650 microns, a sulfur content of 7.5% by weight and a surface area of 4.2 m /gr. Effects of reducing the sulfur content and increasing the surface area, such as attained in Examples 1 and 2, could not be attained in this Comparative Example.
- Example 2 Under the same gasification conditions as employed in Example 1, 100gr of the resulting coke was gasified with use of the same gasification furnace as employed in Example 1. The time required for complete gasificaing conditions and properties of the resulting coke are shown in Table 2 together with data of Examples and other Comparative Examples.
- COMPARATIVE EXAMPLE 2 10 With use of the same fluidized bed type reaction vessel as used in Example 1, the same reduced pressure distillation residual oil of Gattisalan crude oil as employed in Example 1 was coked at a starting oil feed rate of 3.0 kg/hr and a fluidizing steam feed rate of 3.0 kg/hr, at a reaction temperature of 500C for an average coking time of minutes, while introducing a powder of an equimolar mixture of Na Co and CaCO maintained at room temperature at a rate of 0.5 kg/hr to the reaction vessel from a powder feed pipe mounted on the upper portion of the reaction vessel, according to the method using a fluidized bed composed mainly of coke particles.
- the resulting granular coke was continuously withdrawn from the reaction vessel, and as a result of tests of properties of the product it was found that the product has an average particle size of 300 microns, a sulfur content of 0.5% by weight and a surface area of 130 m /gr.
- the effect of desulfurization of coke attained in this Comparative Example was comparable to that attained in Example 1 or 2, but the surface area was smaller than that obtained in Example 1 or 2.
- COMPARATIVE EXAMPLE 3 With use of the same fluidized bed type reaction vessel as employed in Example 1, the same reduced pressure distillation residual oil of Gattisalan crude oil was coked at a starting oil feed rate of 3.0 kg/hr and a fluidizing steam feed rate of 3.0 kg/hr at a reaction temperature of 500C for an average coking time of 20 minutes according to the method using a fluidized bed composed mainly of coke particles. At this coking operation, an equimolar mixture of Na CO and CaCO was incorporated into the starting oil prior to its feeding to the reaction vessel, and mixture was fed to the reaction vessel together with the starting oil so that the feed rate of the mixture was 0.5 kg/hr.
- the resulting coke was continuously withdrawn from the reaction vessel, and as a result of tests of properties of the product, it was found that the product has an average particle size of 700 microns, a sulfur content of 0.7% by weight and a surface area of 73 m /gr. No effect of increasing the surface area was observed in this Comparative Example.
- said particulate alkali metal compound is a member of the group consisting of the carbonates, hydroxides and oxides of the alkali metals or mixtures thereof.
- said inorganic refractory support medium is a member of the group of alumina, zirconia,glasse and chamotte.
- alkaline earth metal compound support medium is a member of the group of calcium oxide, calcium carbonate, magnesium oxide, magnesium carbonate and dolomite.
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
- Hydrogen, Water And Hydrids (AREA)
- Carbon And Carbon Compounds (AREA)
- Coke Industry (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP47119367A JPS5139644B2 (en, 2012) | 1972-11-30 | 1972-11-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3915844A true US3915844A (en) | 1975-10-28 |
Family
ID=14759730
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US419657A Expired - Lifetime US3915844A (en) | 1972-11-30 | 1973-11-28 | Method for treatment of heavy oils |
Country Status (3)
Country | Link |
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US (1) | US3915844A (en, 2012) |
JP (1) | JPS5139644B2 (en, 2012) |
GB (1) | GB1449894A (en, 2012) |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4003823A (en) * | 1975-04-28 | 1977-01-18 | Exxon Research And Engineering Company | Combined desulfurization and hydroconversion with alkali metal hydroxides |
US4046670A (en) * | 1975-04-30 | 1977-09-06 | Kureha Kagaku Kogyo Kabushiki Kaisha | Method for the treatment of heavy petroleum oil |
US4220518A (en) * | 1977-09-28 | 1980-09-02 | Hitachi, Ltd. | Method for preventing coking in fluidized bed reactor for cracking heavy hydrocarbon oil |
US4305809A (en) * | 1980-03-06 | 1981-12-15 | Mobil Oil Corporation | Fixed sulfur petroleum coke fuel and method for its production |
US4479804A (en) * | 1980-03-06 | 1984-10-30 | Mobil Oil Corporation | Fixed sulfur petroleum coke fuel and method for its production |
US4521383A (en) * | 1979-06-08 | 1985-06-04 | Alberta Research Council | Lime addition to heavy crude oils prior to coking |
US5284574A (en) * | 1990-10-01 | 1994-02-08 | Exxon Research And Engineering Company | Improved integrated coking-gasification process with mitigation of slagging |
US5466361A (en) * | 1992-06-12 | 1995-11-14 | Mobil Oil Corporation | Process for the disposal of aqueous sulfur and caustic-containing wastes |
US5788724A (en) * | 1995-06-01 | 1998-08-04 | Eniricerche S.P.A. | Process for the conversion of hydrocarbon materials having a high molecular weight |
US20020100711A1 (en) * | 2000-09-18 | 2002-08-01 | Barry Freel | Products produced form rapid thermal processing of heavy hydrocarbon feedstocks |
US20040069686A1 (en) * | 2002-10-11 | 2004-04-15 | Barry Freel | Modified thermal processing of heavy hydrocarbon feedstocks |
US20040069682A1 (en) * | 2002-10-11 | 2004-04-15 | Barry Freel | Modified thermal processing of heavy hydrocarbon feedstocks |
EP1386955A3 (en) * | 2002-07-30 | 2004-12-15 | Center for Coal Utilization, Japan | Process for preparing hydrogen through thermochemical decomposition of water |
US8715616B2 (en) * | 2011-02-11 | 2014-05-06 | Phillips 66 Company | Soak and coke |
CN103933995A (zh) * | 2014-04-12 | 2014-07-23 | 深圳市绿野清风环保工程有限公司 | 一种垃圾气化催化剂及其制备方法 |
WO2015195326A1 (en) * | 2014-06-20 | 2015-12-23 | Exxonmobil Research And Engineering Company | Fluidized bed coking with fuel gas production |
US9707532B1 (en) | 2013-03-04 | 2017-07-18 | Ivanhoe Htl Petroleum Ltd. | HTL reactor geometry |
WO2018162208A3 (en) * | 2017-03-06 | 2019-08-22 | Sibelco Nederland N.V. | Particles for fluidised bed reaction methods and fluidised bed reaction methods |
WO2019221882A1 (en) * | 2018-05-16 | 2019-11-21 | Exxonmobil Research And Engineering Company | Fluidized coking with catalytic gasification |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59106638U (ja) * | 1982-12-30 | 1984-07-18 | 橋本フオ−ミング工業株式会社 | サツシユ等の形成素材に対する複合加工装置 |
JPH0385115U (en, 2012) * | 1989-12-18 | 1991-08-28 | ||
JPH0412314U (en, 2012) * | 1990-04-18 | 1992-01-31 |
Citations (8)
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US2320118A (en) * | 1940-04-22 | 1943-05-25 | Phillips Petroleum Co | Hydrocarbon conversion and catalyst therefor |
US2527575A (en) * | 1945-12-04 | 1950-10-31 | Standard Oil Dev Co | Method for handling fuels |
US2921017A (en) * | 1957-02-13 | 1960-01-12 | Socony Mobil Oil Co Inc | Process of producing desulfurized coke from petroleum |
US3009781A (en) * | 1957-02-23 | 1961-11-21 | Shawinigan Chem Ltd | Process for preparation of carbon disulphide and for the desulphurization of coke |
US3179584A (en) * | 1962-02-23 | 1965-04-20 | Exxon Research Engineering Co | Oil coking with increased hydrogen production |
US3707462A (en) * | 1970-01-27 | 1972-12-26 | Exxon Research Engineering Co | Conversion of heavy petroleum feedstocks |
US3723291A (en) * | 1971-04-16 | 1973-03-27 | Continental Oil Co | Process for desulfurizing coke |
US3803023A (en) * | 1970-06-09 | 1974-04-09 | Exxon Research Engineering Co | Steam gasification of coke |
-
1972
- 1972-11-30 JP JP47119367A patent/JPS5139644B2/ja not_active Expired
-
1973
- 1973-11-28 US US419657A patent/US3915844A/en not_active Expired - Lifetime
- 1973-11-29 GB GB5545173A patent/GB1449894A/en not_active Expired
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
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US2320118A (en) * | 1940-04-22 | 1943-05-25 | Phillips Petroleum Co | Hydrocarbon conversion and catalyst therefor |
US2527575A (en) * | 1945-12-04 | 1950-10-31 | Standard Oil Dev Co | Method for handling fuels |
US2921017A (en) * | 1957-02-13 | 1960-01-12 | Socony Mobil Oil Co Inc | Process of producing desulfurized coke from petroleum |
US3009781A (en) * | 1957-02-23 | 1961-11-21 | Shawinigan Chem Ltd | Process for preparation of carbon disulphide and for the desulphurization of coke |
US3179584A (en) * | 1962-02-23 | 1965-04-20 | Exxon Research Engineering Co | Oil coking with increased hydrogen production |
US3707462A (en) * | 1970-01-27 | 1972-12-26 | Exxon Research Engineering Co | Conversion of heavy petroleum feedstocks |
US3803023A (en) * | 1970-06-09 | 1974-04-09 | Exxon Research Engineering Co | Steam gasification of coke |
US3723291A (en) * | 1971-04-16 | 1973-03-27 | Continental Oil Co | Process for desulfurizing coke |
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4003823A (en) * | 1975-04-28 | 1977-01-18 | Exxon Research And Engineering Company | Combined desulfurization and hydroconversion with alkali metal hydroxides |
US4046670A (en) * | 1975-04-30 | 1977-09-06 | Kureha Kagaku Kogyo Kabushiki Kaisha | Method for the treatment of heavy petroleum oil |
US4220518A (en) * | 1977-09-28 | 1980-09-02 | Hitachi, Ltd. | Method for preventing coking in fluidized bed reactor for cracking heavy hydrocarbon oil |
US4521383A (en) * | 1979-06-08 | 1985-06-04 | Alberta Research Council | Lime addition to heavy crude oils prior to coking |
US4521382A (en) * | 1979-06-08 | 1985-06-04 | Alberta Research Council | Formation of coke from heavy crude oils in the presence of calcium carbonate |
US4305809A (en) * | 1980-03-06 | 1981-12-15 | Mobil Oil Corporation | Fixed sulfur petroleum coke fuel and method for its production |
US4479804A (en) * | 1980-03-06 | 1984-10-30 | Mobil Oil Corporation | Fixed sulfur petroleum coke fuel and method for its production |
US5284574A (en) * | 1990-10-01 | 1994-02-08 | Exxon Research And Engineering Company | Improved integrated coking-gasification process with mitigation of slagging |
US5466361A (en) * | 1992-06-12 | 1995-11-14 | Mobil Oil Corporation | Process for the disposal of aqueous sulfur and caustic-containing wastes |
US5788724A (en) * | 1995-06-01 | 1998-08-04 | Eniricerche S.P.A. | Process for the conversion of hydrocarbon materials having a high molecular weight |
US20020100711A1 (en) * | 2000-09-18 | 2002-08-01 | Barry Freel | Products produced form rapid thermal processing of heavy hydrocarbon feedstocks |
US7270743B2 (en) | 2000-09-18 | 2007-09-18 | Ivanhoe Energy, Inc. | Products produced form rapid thermal processing of heavy hydrocarbon feedstocks |
EP1386955A3 (en) * | 2002-07-30 | 2004-12-15 | Center for Coal Utilization, Japan | Process for preparing hydrogen through thermochemical decomposition of water |
US20040069682A1 (en) * | 2002-10-11 | 2004-04-15 | Barry Freel | Modified thermal processing of heavy hydrocarbon feedstocks |
US20040069686A1 (en) * | 2002-10-11 | 2004-04-15 | Barry Freel | Modified thermal processing of heavy hydrocarbon feedstocks |
US7572362B2 (en) * | 2002-10-11 | 2009-08-11 | Ivanhoe Energy, Inc. | Modified thermal processing of heavy hydrocarbon feedstocks |
US7572365B2 (en) | 2002-10-11 | 2009-08-11 | Ivanhoe Energy, Inc. | Modified thermal processing of heavy hydrocarbon feedstocks |
US8715616B2 (en) * | 2011-02-11 | 2014-05-06 | Phillips 66 Company | Soak and coke |
US20140205536A1 (en) * | 2011-02-11 | 2014-07-24 | Phillips 66 Company | Soak and coke |
AU2012214798B2 (en) * | 2011-02-11 | 2015-04-30 | Phillips 66 Company | Soak and coke |
US9707532B1 (en) | 2013-03-04 | 2017-07-18 | Ivanhoe Htl Petroleum Ltd. | HTL reactor geometry |
CN103933995A (zh) * | 2014-04-12 | 2014-07-23 | 深圳市绿野清风环保工程有限公司 | 一种垃圾气化催化剂及其制备方法 |
WO2015195326A1 (en) * | 2014-06-20 | 2015-12-23 | Exxonmobil Research And Engineering Company | Fluidized bed coking with fuel gas production |
WO2018162208A3 (en) * | 2017-03-06 | 2019-08-22 | Sibelco Nederland N.V. | Particles for fluidised bed reaction methods and fluidised bed reaction methods |
WO2019221882A1 (en) * | 2018-05-16 | 2019-11-21 | Exxonmobil Research And Engineering Company | Fluidized coking with catalytic gasification |
Also Published As
Publication number | Publication date |
---|---|
JPS5139644B2 (en, 2012) | 1976-10-29 |
DE2359571B2 (de) | 1976-12-02 |
GB1449894A (en) | 1976-09-15 |
JPS4980102A (en, 2012) | 1974-08-02 |
DE2359571A1 (de) | 1974-06-06 |
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