Mitsubishi Heavy Industries Limited

Mitsubishi Gas Chemical Company, Inc.

Mitsubishi Jukogyo Kabushiki Kaisha

Mitsubishi Heavy Industries Machinery Systems, Ltd.

Hideaki Nagai

Kazuto Kobayashi

Hiroyuki Osora

Hiroyuki Kanazawa

Koshi Tanimoto

Hiroshi Ohira

Yoshio Seiki

Yoshitomo Noda

Kenta Nakao

Tetsuya Imai

Makoto Shimohatsubo

Katsutoshi Murayama

Tomohiro Akaki

Hiroyuki Osara

Akira Magari

Hiroichi Kurita

The present invention provides a sheet stacking device, a counter-ejector, and a carton former and is provided with: a hopper unit that stacks cardboard boxes; feed rollers that feed a cardboard box to the hopper unit; a first blower device that blows air from above the hopper unit toward the cardboard box fed by the feed rollers; and a second blower device that blows air between the cardboard box stacked in the hopper unit and the cardboard box fed by the feed roller.

Sheet stacking device, counter-ejector, and carton former

A sheet stacking device is provided with a hopper unit configured to stack a sheet, a feeding unit configured to feed out the sheet to the hopper unit, a distance detection unit configured to detect an inter-sheet distance, in the vertical direction, between a rear end portion of the sheet that is preceding and a tip end portion of the sheet that is subsequent, and an output unit configured to output a behavior stabilization command for the sheet based on the inter-sheet distance.

Sheet stacking device, sheet stacking method, sheet stacking program, counter ejector, and box making machine

An object of the present invention is to provide a production process for methanol in which a distillation system is reduced in a size by removing efficiently heat generated in a methanol synthesis reaction and inhibiting by-products from being formed. The present invention provides a production process for methanol comprising a synthetic gas production step in which hydrocarbon is reacted with steam to generate synthetic gas comprising main components of hydrogen, carbon monoxide and carbon dioxide, a methanol synthesis step in which the synthetic gas described above is reacted on a methanol synthesis catalyst and resulting crude methanol is recovered in the form of liquid and a distillation step in which recovered crude methanol described above is distilled to be separated into waste water containing low boiling organic compounds and high boiling organic compounds and refined methanol, wherein a reactor having a specific structure is used in the methanol synthesis step described above.

Apparatus for methanol synthesis

Production process for methanol

A raw material gas containing hydrocarbon as a main component is supplied together with steam to a reformer through a moistening device to form a synthetic gas containing hydrogen, carbon monoxide and carbon dioxide as main components by the reaction between the hydrocarbon contained in the raw material gas and the steam. In forming the synthetic gas, carbon dioxide is supplied to at least one fluid passageway selected from the group consisting of the fluid passageway positioned upstream of the moistening device and the fluid passageway interposed between the moistening device and the reformer. As a result, the excess hydrogen contained in the gas formed in the reformer is effectively utilized without bringing about deactivation of the methanol synthesizing catalyst in the methanol synthesizing step. Also, carbon dioxide is effectively utilized to decrease the amount of carbon dioxide discharged to the outside of the system. Further, it is possible to decrease the amount of steam supplied to the reformer.

Method of manufacturing methanol

Provided is a methanol production process from hydrocarbon which lessens generation of waste water and reduces boiler water. Specifically, there are provided a methanol production process comprising the steps of (a) reacting hydrocarbon with steam to generate a synthesis gas containing hydrogen, carbon monoxide and carbon dioxide as main components, (b) reacting the synthesis gas on a methanol synthesis catalyst and recovering crude liquid methanol, and (c) distilling the recovered crude methanol into refined methanol and waste water, wherein the hydrocarbon comes in contact with the waste water neutralized with alkali metal salt or the like at the step (c) so as to be humidified, and comes in contact with condensed water separated from the synthetic gas obtained at the step (a) so as to be further humidified, and is then supplied to the step (a).

Methanol preparation process

This invention provides a process for the production of methanol which comprises steps of

Process for the production of methanol

A multi-tube type heat transfer apparatus includes a plurality of heat transfer tubes disposed in parallel to each other within a shell wall. A plurality of holes having a larger diameter than the outer diameter of the heat transfer tubes are provided in each of a plurality of baffle plates disposed at intervals within the shell wall. The heat transfer tubes extend through the respective holes. A flow passageway of fluid on the side of the shell is composed of annular spaces formed between the outer circumference of the heat transfer tubes and the inner circumferences of the holes in the baffle plates. Preferably the inner diameters of the plurality of holes in the respective baffle plates are different in different regions of the plate, and thereby the cross-sectional areas of the flow passageways of the fluid on the side of the shell between the outer circumferences of the heat transfer tubes and the inner circumferences of the holes in the baffle plates are different in different areas of the apparatus to provide a desired flow distribution of the shell side fluid.

Multi-tube type heat transfer apparatus

Growing community of inventors

Tokyo, Japan

Hideaki Nagai