AUTOTHERMAL STEAM REFORMING PROCESS

    公开(公告)号:AU640599B2

    公开(公告)日:1993-08-26

    申请号:AU1147992

    申请日:1992-03-05

    Abstract: Synthesis gases are produced by reaction of steam, oxidant, and a major portion of fresh hydrocarbon feed in an exothermic catalytic reforming zone to a first reformed gas having very low methane content. The balance of the fresh feed is reacted with steam in an endothermic catalytic reforming zone to a second reformed gas having a low methane content. The first and second reformed gases are combined and passed in indirect heat exchange with reactants in the endothermic reforming zone to provide all of the heat required therein and are then recovered as product synthesis gases.

    PROCESS FOR SEPARATION OF HYDROCARBON GASES

    公开(公告)号:MY101700A

    公开(公告)日:1991-12-31

    申请号:MYPI19873221

    申请日:1987-12-18

    Abstract: A PROCESS FOR SEPARATION OF A HIGH PRESSURE GAS STREAM SUCH AS LIGHT REFINERY GASES IN WHICH THE GAS MIXTURE IS EXPANDED, PREFERABLY THROUGH A TURBINE, AND SEPARATED INTO FIRST VAPOR AND LIQUID PORTIONS. THE FIRST VAPOR PORTION MAY BE RECOVERED AS FOR EXAMPLE METHANE- RICH PRODUCT GAS. THE FIRST LIQUID PORTION IS RAISED TO AN INTERMEDIATE PRESSURE REVAPORIZED, AND INTRODUCED TO A FRACTIONATOR FROM WHICH AN ETHANE- CONTAINING STREAM IS RECOVERED. THE ETHANE- CONTAINING STREAM IS THEN COOLED AND SEPARATED INTO SECOND VAPOR PORTION AND A SECOND LIQUID PORTION WHICH IS THEN EXPANDED AND COMBINED WITH THE EXPANDED STARTING GAS MIXTURE TI INCREASE THE AMOUNT OF REFRIGERATION THAT MAY BE RECOVERED FROM THE FIRST LIQUID STREAM PRIOR TO ITS FRACTIONATION.(FIG. 2)

    METHOD FOR SUB - COOLING A NORMALLY GASEOUS HYDROCARBON MIXTURE

    公开(公告)号:MY100403A

    公开(公告)日:1990-09-17

    申请号:MYPI19880309

    申请日:1988-03-25

    Inventor: CHARLES A DURR

    Abstract: A METHOD FOR SUB-COOLING NORMALLY GASEOUS HYDROCARBON MIXTURES PRODUCED IN A CRYOGENIC PROCESS UNIT WHEREIN THE MIXTURE IS INTRODUCED TO A GAS/LIQUID SEPARATOR, WHICH MAY BE A STORAGE VESSEL, AND VAPOR CONTAINING AT LEAST TWO COMPONENTS OF THE MIXTURE IS RECOVERED AS REFRIGERANT, EMPLOYED IN AN OPEN CYCLE REFRIGERATION SYSTEM TO SUB-COOL THE HYDROCARBON MIXTURE, AND RETURNED TO THE SEPARATOR. THE SYSTEM IS PARTICULARLY USEFUL FOR SUB-COOLING A HYDROCARBON PRODUCT STREAM WHILE, AT THE SAME TIME, RECOVERING BOIL-OFF VAPOR FROM A CRYOGENIC STORAGE VESSEL. (FIG.1)

    Model structures and jigs for use in assembly thereof

    公开(公告)号:GB901811A

    公开(公告)日:1962-07-25

    申请号:GB3464458

    申请日:1958-10-29

    Abstract: 901,811. Toys; models. KELLOGG CO., M. W. Oct. 29, 1958 [Feb. 25, 1958], No. 34644/48. Classes 132 (3) and 146 (2). [Also in Group XXV] A jig 30 for assembling elongated model structural members comprises a flat plate section 31 and a stepped secondary section 32 which includes a part 36 lying in a plane normal to the plane of the main section 31. Parts 33, 34 and 35 of the main section 31 and the part 36 of the secondary section 32 are each provided with a pair of upstanding prongs 37 and a saucershaped clamping cam member 38; the latter is eccentrically mounted on the end of a pin 40 extending through the part and having a wing piece (not shown) for rotating the pin and so the cam member. A protuberance 42 on each part serves to limit the rotation of the respective cam member 38 to a position in which the flange of the model structural member, e.g. an I-beam column 12 (Fig. 2), may be easily inserted in position, the cam member 38 being then rotated to engage the flange of the I-beam so as to clamp the flange against the face of the part and the associated prongs 37, the latter being bent out of the plane of the part through more than 90 degrees. As shown, the jig 30 is positioned at the upper end of the I-beam 12 which is clamped against the part 36 of the secondary section 32, and the main section 31 has clamped thereto horizontal I-beams 13 and 14. The I-beam 12 is retained vertically in position by having the web at the lower end thereof inserted in a slotted head 46 of a pin 45 which is entered into a mounting board 48. In a modification, Fig. 4 (not shown), the secondary section 32 is adjustably secured to the main section 31 by means of a screw-and-slot connection, the main section 31 being provided with a plurality of spaced indentations adapted to receive a protuberance on the secondary section 32 to facilitate accurate positioning of the latter.

    INTEGRATED PROCESS FOR UPGRADING MIDDLE DISTILLATE PRODUCTION

    公开(公告)号:MY113035A

    公开(公告)日:2001-11-30

    申请号:MYPI19950186

    申请日:1995-01-26

    Abstract: AN INTEGRATED MIDDLE DISTILLATE UPGRADING PROCESS AND UNIT ARE DISCLOSED. A MIDDLE DISTILLATE SIDE-STREAM 47 OF A CONVENTIONAL SINGLE STAGE HYDROCRAKING PROCESS IS CIRCULATED TO A HYDROTREATING STAGE SUCH AS AN AROMATICS SATURATION REACTOR AND/OR A CATALYTIC DEWAXING REACTOR TO EFFECT MIDDLE DISTILLATE UPGRADE 54. THE UPGRADED PRODUCT 54 IS THEN FINISHED IN A FRACTIONATION STAGE SIDE-STRIPPER 48 COLUMN. THE INTEGRATED HYDROTREATING REACTOR 88 CAN SHARE THE DUTY OF EXISTING HYDROCRACKER STAGE EQUIPMENT AND TAKE ADVANTAGE OF EXISTING PROCESS HEAT TO ELIMINATE THE NEED FOR MUCH OF THE EQUIPMENT GENERALLY REQUIRED BY A STAND-ALONE HYDROTREATING REACTOR OF THE PRIOR ART.

    NATURAL GAS LIQUEFACTION PRETREATMENT PROCESS.

    公开(公告)号:MY110197A

    公开(公告)日:1998-02-28

    申请号:MYPI19940410

    申请日:1994-02-22

    Abstract: A METHOD FOR PRETREATING A NATURAL GAS STREAM USING A SINGLE SCRUB COLUMN TO REMOVE FREEZABLE C5+ COMPONENTS AND PROVIDE AN LNG PRODUCT WHICH CAN BE CONVENIENTLY HANDLED AND SHIPPED IS DISCLOSED. THE METHOD COMPRISES FEEDING A NATURAL GAS STREAM TO A FEED POINT ON A SCRUB COLUMN OPERATED SUBSTANTIALLY AS AN ABSORPTION COLUMN WHEREIN THE HEAVY COMPONENTS ARE ABSORBED FROM THE FEED GAS USING A LIQUID REFLUX ESSENTIALLY FREE OF SUCH C5+ COMPONENTS. THE FEED CAN BE VAPOR INTRODUCED AT A LOW POINT ON THE COLUMN, OR CAN BE OPTIONALLY SPLIT, COOLED AND/OR EXPANDED AND INTRODUCED AT ONE OR MORE FEED POINTS ON THE COLUMN. THE REFLUX STREAM CAN BE OVERHEAD VAPOR CONDENSATE HAVING A TEMPERATURE OF ABOUT -40?C, OR METHANE-RICH LNG OR A COMBINATION OF LNG AND VAPOR CONDENSATE.(FIG. 1)

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