Patent
Technological process for synthesizing gasoline from methanol by multistage cold shock method
TLDR
In this article, a multistage cold shock method was used to synthesize gasoline from methanol by a multi-stage cold-shaking method, which is characterized by comprising the following steps: a raw material methanolate or crude methanoil is pumped into a reaction system through a feedstock pump, wherein the raw material is divided into two parts: one part enters a methanoline heater to generate a mixture of methanolnol, dimethyl ether and water in a dehydration reactor, and the mixture is mixed with a recycle gas which comes from aAbstract:
The invention relates to a technological process for synthesizing gasoline from methanol by a multistage cold shock method. The technological process is characterized by comprising the following steps: a) a raw material methanol or crude methanol is pumped into a reaction system through a feedstock pump, wherein the raw material is divided into two parts: one part enters a methanol heater to generate a mixture of methanol, dimethyl ether and water in a methanol dehydration reactor, and the mixture is mixed with a recycle gas which comes from a compressor and finally enters an MTG reactor; the other part of methanol enters interlayers of the MTG rector by stages for cold shock; b) one part of reaction products in the MTG reactor enters the methanol heater to be used for heating the methanol feedstock, the other part enters a recycle gas heater to be used for heating the recycle gas, and the two parts are merged to enter a discharge cooler; and c) cooling materials are separated in a three-phase separator, part of gases discharged are dry gases, and most enters a recycle compressor for recycling; and liquid phases undergo phase splitting, light phases are hydrocarbon components such as gasoline and the like and enter a subsequent separation system, and a heavy phase is water and is discharged into a waste water treatment system.read more
Citations
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Continuous reaction process utilizing methanol conversion to prepare hydrocarbon mixture and reactor
TL;DR: In this paper, a continuous reaction process utilizing methanol conversion to prepare a hydrocarbon mixture is described, where the reaction of converting the methanols into the hydrocarbon mixtures is completed in a first catalyst separating bed layer.
Patent
Methanol-hydrocarbon method and device through ejecting circulation, fractional reaction and step-by-step adjustment
TL;DR: In this paper, the authors proposed a method and a device of converting methanol to prepare hydrocarbon products, which includes a pre-reaction system, a main reaction system, and a post reaction system for fractional reaction in a three-stage reactor respectively.
Patent
Method of using methanol to prepare gasoline with high octane value and matched device thereof
Qin Ruhao,Chen Zhongmin +1 more
TL;DR: In this article, a matched device consisting of a methanol gasifying device, an alcohol etherification tower, an ether alkylation reactor, and an oil-gas-water three phase separator was proposed.
References
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Process to prepare an olefin-containing product or a gasoline product
TL;DR: In this paper, the authors proposed a process to prepare an olefin-containing product or a gasoline product from a solid carbonaceous feedstock by performing the steps of feeding an oxygen comprising gas and the carbonous feedstock to a burner firing into a reactor vessel, which burner is preferably positioned horizontal.
Patent
Method for directly preparing propylene from crude methanol
TL;DR: In this article, a method for directly preparing propylene from crude methanol was proposed, where a multistage adiabatic fixed bed reactor loaded with an acid molecular sieve catalyst without rectification and purification was used to prepare low carbon olefin with the propylene as a main component.
Patent
Technique for preparing low carbon mixed hydrocarbon rich in propylene and gasoline fraction by methanol
TL;DR: In this paper, a technique for preparing low carbon mixed hydrocarbon rich in propylene and gasoline fraction by methanol, comprising: dimethyl ether conversion is firstly carried out on the mixture of the methanolisol and water, and then the combined mixture is converted into hydrocarbon mixture rich in the propylene; gas-liquid separation is carried out to obtain gaseous phase materials of the mixed hydrocarbons below C4 and liquid phase part of the mixture.
Patent
Method for preparing gasoline from methanol
TL;DR: In this article, a method for preparing gasoline from methanol is described, which comprises the following step that: after passing through a pre-heater, an evaporator and a superheater and the mixture entering a reactor and is transformed into hydrocarbon through palladium-carbon catalyst.