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JPH07238288A |
PURPOSE: To provide a thermal cracker capable of optionally regulating the temperature distribution of fluids in reactional pipes and adjusting the distribu tion to ideal characteristics. CONSTITUTION: This thermal cracker is obtained by...
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JPH0773711B2 |
PURPOSE:To efficiently treat alcohol waste water by anaerobically treating alcohol waste water enhanced in its propagation activity of methane bacteria by the addition of a specific amount of nitrogen and phosphorus by methane fermentati...
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JPH0774339B2 |
The present invention relates to a process and an apparatus for steam cracking a mixture of hydrocarbons comprising passing steam and the mixture of hydrocarbons through at least one heated cracking tube. The process is characterised in ...
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JPH0768151B2 |
Feed hydrocarbons comprising propane and butanes are cracked to selectively maximize the production of ethylene or propylene by contacting the feed hydrocarbons with a cracking catalyst, adapted to convert the feed hydrocarbons to less s...
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JPH07185345A |
PURPOSE: To provide a catalyst for producing methane containing gas high in thermal durability and capable of stably keep the activity of a catalyst even in using under a high temp. condition for a long time. CONSTITUTION: A basic salt s...
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JPH0755915B2 |
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JPH07150147A |
PURPOSE: To thermally decompose a waste thermoplastic resin at a low temp. to yield a liq. or gaseous hydrocarbon by mixing the resin with polyisobutylene before the thermal decomposition. CONSTITUTION: 100 pts.wt. waste thermoplastic re...
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JPH07504936A |
A composite fluid catalytic cracking catalyst comprising a non-zeolitic component of at least 45% Al2O3 and containing
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JPH07502733A |
An olefins process is described which combines cracking of a hydrocarbon feedstock with the coupling of methane using an oxygen-affording gas such that the heat evolved in the exothermic methane coupling reaction is effectively transferr...
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JPH0776529A |
PURPOSE: To provide an apparatus using a catalytic heat transfer wall provided integrally, for coupling methane and at the same time, dehydrogenating a saturated hydrocarbon in another gas. CONSTITUTION: A dual-flow chemical reactor 10 c...
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JPH0717530B2 |
Process for the production of ethylene by pyrolytically cracking one or more C2-6-paraffins in a pyrolytic cracking furnace having a plurality of elongated serpentine-situated thermal cracking tubes which have a 20-50% longer run life as...
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JPH0717543B2 |
A method for producing p-alkylstyrene which is characterized in that side reaction scarcely occurs, catalyst and unreacted material are easily recovered for the reuse, the p-position selectivity is excellent and yield of aimed product is...
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JPH0717544B2 |
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JPH06511464A |
(57) [Summary] Since this publication is application data before electronic filing, summary data is not recorded.
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JPH06104632B2 |
A catalyst composition consisting essentially of (a) a crystalline aluminosilicate zeolite having a silica/alumina mole ratio of at least 10 (component A) in which at least 50 % of its cationic sites are occupied by alkaline earth metal ...
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JPH06346060A |
PURPOSE: To carry out thermal cracking of pitch in high efficiency while suppressing the formation of coke and to obtain olefins useful for petrochemical industry in remarkably high yield compared with conventional technique. CONSTITUTIO...
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JPH0696708B2 |
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JPH06330055A |
PURPOSE: To convert a light hydrocarbon raw material consisting mainly of a paraffin having a specific carbon number into lower olefins and monocyclic aromatic hydrocarbons in high yields by bringing the light hydrocarbon raw material in...
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JPH0689009B2 |
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JPH0678385B2 |
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JPH06279019A |
PURPOSE: To obtain a crystalline aluminosilicate useful for the conversion of an org. matrix and as a molecular sieve by hydrothermally crystallizing a gel contg. sources of tetravalent silicon, a zeolite Y in the form of spheres and an ...
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JPH0674141B2 |
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JPH0674140B2 |
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JPH0672111B2 |
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JPH06256774A |
PURPOSE: To perform the selective hydrogenolysis of a starting feedstock such as a saturated hydrocarbon, an unsaturated hydrocarbon, a cyclic hydrocarbons or a (substituted) aromatic hydrocarbon while inhibiting coking by bringing the f...
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JPH0669881B2 |
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JPH06507647A |
PCT No. PCT/DE93/00226 Sec. 371 Date Jan. 12, 1994 Sec. 102(e) Date Jan. 12, 1994 PCT Filed Mar. 12, 1993 PCT Pub. No. WO93/18112 PCT Pub. Date Sep. 16, 1993The instant invention relates to a process for the production of olefins from pl...
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JPH0667858B2 |
C3 and/or C4 hydrocarbons (in particular propane and butanes) are converted to less saturated hydrocarbons (in particular ethylene and propylene) in the presence of a catalyst consisting essentially of either (a) zinc oxide and manganese...
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JPH0667857B2 |
Various fractions of petroleum, including residual oils and crude oils, are catalytically converted to produce gaseous olefins, especially propylene and butylene, in fluidized or moving bed reactors with solid acidic catalysts in the pre...
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JPH0665601B2 |
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JPH06228018A |
PURPOSE: To prolong the continuous operation time of a steam cracking furnace by inhibiting contamination of the furnace and coke formation. CONSTITUTION: The process comprises a process of adding an effective amount of tripiperidinophos...
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JPH06220466A |
PURPOSE: To form low emission fuel products by bringing hydrocarbon fraction materials into contact with cracking catalysts at a prescribed temperature for a specific time in a reaction zone to produce low boiling point reactants and rep...
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JPH06506482A |
An olefins process is described which combines cracking of a hydrocarbon feedstock with the coupling of methane using an oxygen-affording gas such that the heat evolved in the exothermic methane coupling reaction is effectively transferr...
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JPH06199707A |
PURPOSE: To convert a light hydrocarbon composed mainly of paraffin into lower olefins and monocyclic aromatic hydrocarbons in high yield. CONSTITUTION: A light hydrocarbon raw material containing 2-12C paraffin as main component (≥70w...
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JPH06192135A |
PURPOSE: To convert a light hydrocarbon consisting essentially of a paraffin into a lower olefin and a monocyclic aromatic hydrocarbon in high yield. CONSTITUTION: Catalytic cracking is carried out by using a zeolite selected from ZSM-5s...
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JPH06192134A |
PURPOSE: To convert a light hydrocarbon consisting essentially of a paraffin into a lower olefin and a monocyclic aromatic hydrocarbon in high yield. CONSTITUTION: Catalytic cracking is carried out by using a zeolite selected from ZSM-5s...
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JPH06192136A |
PURPOSE: To convert a light hydrocarbon consisting essentially of a paraffin into a lower olefin and a monocyclic aromatic hydrocarbon in high yield. CONSTITUTION: Catalytic cracking is carried out by using a zeolite selected from alumin...
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JPH06192661A |
PURPOSE: To obtain useful olefins in yields higher than those in prior art while suppressing the formation of coke by thermally decomposing pitch at good efficiency by using a specified compound as a catalyst. CONSTITUTION: Pitch is ther...
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JPH0649868B2 |
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JPH0643345B2 |
The invention involves the oligomerization of olefins using a catalyst comprising a composite structure of multiple phases, at least two of which are inorganic crystalline compositions that are contiguous and have a common crystal framew...
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JPH0640963B2 |
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JPH0619549Y2 |
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JPH0639410B2 |
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JPH0639415B2 |
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JPH0639397B2 |
Novel compositions of matter include: mixed oxides of (a) at least one oxide of chromium, at least one oxide of manganese and at least one oxide of magnesium, Lanthanum Series metals, preferably lanthanum and cerium, and/or niobium; (b) ...
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JPH0637403B2 |
A method for the conversion of C₃ and C₄ hydrocarbons to less saturated hydrocarbons, such as ethylene and propylene and particularly ethylene, includes contacting the feed hydrocarbons with mixed oxides comprising a major proportion...
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JPH0635395B2 |
Syngas is subjected to Fischer-Tropsch synthesis over a special Co/Zr/SiO2 catalyst and the C20+ fraction of the synthesized product is converted into linear C10-C20 olefins by mild thermal cracking.
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JPH0627306B2 |
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JPH06503065A |
A catalyst for use in acid catalyzed chemical conversion processes such as hydrocarbon conversion processes comprises zeolite beta and a dealuminated Y zeolite having an overall silica-to-alumina mole ratio greater than 6.0, preferably L...
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JPH0624965B2 |
A novel crystalline aluminophosphate of the molecular sieve type, denominated AlPO4-34, is prepared by hydrothermal synthesis from reactive sources of aluminum and phosphorus and an organic templating agent.
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