A method for producing oil from biogas

Abstract

The invention belongs to the technical field of energy utilization, and provides a method for making an oil product taking methane as a raw material. The method comprises the following steps that (1)the raw material methane serves as virgin gas of reforming reaction after being decontaminated, purified and compressed through a purification compression system; (2) the virgin gas enters into a reforming reaction system and is translated into synthesis gas; (3) the synthesis gas enters a Fischer-Tropsch synthesis system for reaction to generate a Fischer-Tropsch synthesis product; (4) the obtained Fischer-Tropsch synthesis product is subjected to gas-liquid separation in a separation system to obtain a hydrocarbon product, a gas product and synthetic water respectively; (5) the hydrocarbon product enters a hydrocarbon product hydroisomerization system for hydrogenation and quality improvement to obtain the oil product not containing sulfur, nitrogen and arene; and the balance of pressureand material flow between a reforming reactor and a Fischer-Tropsch synthesis reactor is controlled through a pressure flow coupling control system. The method fully develops and utilizes potential value of the methane to achieve that the methane is translated into the oil product.

Description

technical field [0001] The invention belongs to the technical field of energy utilization, and relates to a method for preparing oil products from biogas. Background technique [0002] Biogas is a combustible gas produced by microbial fermentation of organic matter in the absence of air. The main components are methane and carbon dioxide, which account for more than 90%. There are many sources of biogas: straw in the process of agricultural production, animal manure from livestock farms, discarded paper and wood chips, leftover food in urban household kitchens and meal waste in restaurants and other organic wastes. Biogas is produced during the landfill process. [0003] China is a large agricultural country, producing more than 3 billion tons of biomass resources every year. Biogas is considered to be the most feasible technology for industrialization in the biomass industry. For this reason, the state and local governments at all levels have issued a series of incentive...

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to, aiming at the problems existing in the prior art, provide a kind of method that takes biogas as raw material to produce oil product, solves the problem existing between the reforming reactor and the Fischer-Tropsch synthesis reactor in the same reaction system The problem of unbalanced material flow and pressure, fully develop and utilize the potential value of biogas, and realize the conversion of biogas into oil products free of sulfur, nitrogen and aromatics

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