摘要:
The present invention provides a method for producing a hydrocarbon fuel, comprising a first step of holding a mixture containing an aliphatic compound produced by algae, and a hydrocarbon solvent in which critical temperature is 90° C. or higher, in a supercritical state, with temperature and pressure adjusted so that a solubility of the aliphatic compound in the hydrocarbon solvent is 15 g or less per 100 g of the hydrocarbon solvent, and then recovering a soluble portion of the aliphatic compound in the hydrocarbon solvent; and a second step of subjecting the soluble portion recovered in the first step to hydrotreatment using a catalyst.
摘要:
Provided is a process and catalyst for hydrocracking paraffinic hydrocarbons which provides satisfactorily high cracking activity and middle distillate yield as well as the low pour point of the resulting gas oil all together. The catalyst of the present invention comprises a crystalline aluminosilicate, alumina-boria and a noble metal of Group VIII of the Periodic Table.
摘要:
A fuel control device (11) which is provided on a fuel outlet side of a low-pressure pump (3) for controlling a fuel supply pressure from the low-pressure pump (3) to a predetermined pressure includes a pressure control valve (50) for controlling a fuel pressure of the fuel outlet side and a fuel takeout valve (60). The fuel takeout valve (60) has a valve opening pressure which is smaller than a valve opening pressure of the pressure control valve (50), a drain port (50C) of the pressure control valve (50) and a drain port (61C) of the fuel takeout vale (60) are connected to a fuel low-pressure side by way of a drain pipe (13), and back pressures of pistons (52), (62) are maintained at a fuel-low-pressure-side pressure of the low-pressure pump (3).
摘要:
The present invention provides a fuel supply pump which is suitably used in a booster-type accumulator fuel injection device and a tappet structural body which is suitable for the fuel supply pump. For this end, in a fuel supply pump which includes a plurality of plunger barrels, plungers and tappet structural bodies in the inside of a pump housing, a plurality of accommodating portions for arranging the plurality of plunger barrel in parallel to each other is formed in the inside of the pump housing and an inter-cylinder connecting portion which allows lubricant or lubricating fuel to pass therethrough is provided between the plurality of accommodating portions.
摘要:
A catalyst is provided which is low in methane selectivity in a high CO conversion region and high in chain growth probability a in a Fischer-Tropsch synthesis and comprises a support comprising silica or alumina and an oxide of zirconium and/or titanium loaded thereon in film form in an amount ranging from 0.5 percent by mass to 10.0 percent in terms of metal, and one or more metals selected from the group consisting of cobalt, nickel and ruthenium loaded on the support.
摘要:
A fuel cell is provided, in which the generation of hydrogen, which is one cause of degradation of the cell characteristics, is controlled, thus preventing the degradation of the electrolyte member and maintaining stable cell characteristics for a long time. The fuel cell has a fuel pole, an oxidizer pole opposed to the fuel pole, and an electrolyte member arranged between the fuel pole and the oxidizer pole and having ion conductivity. The electrolyte member comprises three layers, i.e., a first electrolyte layer and two second electrolyte layers. The first electrolyte layer is interposed between the second electrolyte layers. The second electrolyte layer contacts the fuel pole and the oxidizer pole and is a layer that prevents the passage of oxygen from the oxidizer pole to the fuel pole. The second electrolyte layer contains catalyst.
摘要:
A fuel feed pump is provided that has a fuel flow-rate regulating valve, on the inlet side. The fuel flow-rate regulating valve includes a housing with a fuel inlet port and a fuel outlet port, a valve mechanism for controlling the flow rate of the fuel from the inlet port to the outlet port, and a regulating mechanism for regulating a backpressure to control the position of a needle valve of the valve mechanism in response to a system pressure, to thereby control the flow rate by controlling the fuel flow through an opening provided in a valve chamber. This arrangement makes it difficult for contamination to accumulate, and also enables a low-cost implementation.
摘要:
A fuel supply pump, which is simple in construction and easy to produce and is capable of efficiently pressurizing a high flow rate of fuel, is provided. The fuel supply pump (50) includes a housing (52), a plunger barrel (53), a plunger (54) for pressurizing fuel, which is installed in the plunger barrel (53) so as to be allowed to move up and down, a cam (60) installed in rotation way below the plunger (54), a tappet structure body (6) installed between the cam (60) and the plunger (54) to transmitting the turning force, serving as a lifting force, from the cam shaft (3) to the plunger (54), a tappet structure body (6) installed between the cam (60) and the plunger (54) and provided for transmitting a upward or downward movement of the cam (60) caused by the rotation of the camshaft (3) to the plunger (54); and a return spring (68) for setting lowering force to the plunger (54), which is installed between the tappet structure body (6) and the plunger barrel (53).
摘要:
A structure in which a plurality of leads are formed on a base film that are respectively connected to a plurality of terminal portions of a recording head of an ink jet printer by brazing has slits formed among the plurality of leads at this juncture so that gases generated in brazing are discharged from the slits thereby preventing brazing failure due to scattering of molten solder. Further, a slit maybe formed along a center axis of each of the plurality of leads at the juncture so the molten solder flows into the slits. As a result, the connection strength is improved by fillets formed at both sides of the slits. Further, the gases generated in brazing are also evacuated from the open ends of the slits thereby further minimizing brazing failures.
摘要:
Silicon thin films of superior resistivity useful for, e.g., semiconductor elements in solar cells, are formed by coating and drying silicon vaporized in the presence of hydrogen alone or hydrogen and an inert gas, followed by contacting the thus produced silicon particles with solvent to form a silicon colloid. Preferably, the silicon colloid is produced by a process which comprises vaporizing silicon in an atmosphere consisting essentially of hydrogen and up to 10 mol of an inert gas per mol of hydrogen; condensing silicon vaporized in the first step to form fine silicon particles; bringing the silicon particles into contact with a solvent to cover the silicon particles with solvent, and collecting the solvent covered silicon particles to obtain the silicon colloid.