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Modular skid-mounted device for making oil through marsh gas

A modular and skid-mounted technology, applied in inorganic chemistry, gas fuel, petroleum industry, etc., can solve problems such as long construction period, time-consuming design, and immobile devices

Inactive Publication Date: 2018-08-28
石玉林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are problems such as time-consuming design of each project, long construction period, many non-standard parts in design, and inability to move the device installed and constructed on site. At the same time, it also causes high cost of device engineering, and it cannot reach the scale for occasions with small processing capacity. chemical efficiency
[0005] Due to the small and scattered amount of biogas, there will be problems such as many projects, high investment, and poor economic benefits in the construction of biogas to oil equipment using traditional technologies

Method used

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  • Modular skid-mounted device for making oil through marsh gas
  • Modular skid-mounted device for making oil through marsh gas
  • Modular skid-mounted device for making oil through marsh gas

Examples

Experimental program
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Effect test

Embodiment 1

[0090] After the biogas is introduced into the inlet pipeline of the purification compression and reforming module, it first passes through a gas-liquid separator to remove the liquid droplets carried in the biogas, and then enters two series-connected desulfurization towers (built-in desulfurization agent zinc oxide), and finally passes through 2 A metal powder sintered filter with a filter element diameter of 0.2 μm connected in series can obtain biogas with sulfur content < 10 ppb, dust content < 0.5 μ m, and oil content < 10 ppm. The purified biogas enters the compression module, and under the action of a gas compressor, 0.8MPa biogas is obtained as reforming raw material gas.

[0091] The compressed biogas and compressed air enter the plasma arc reforming reactor at a volume flow ratio of 1:10. At 1050°C, Ni-Al 2 o 3 The reforming reaction takes place under the condition of catalyst and steam to convert methane into synthesis gas (H 2 / CO=2.1).

[0092] Synthesis gas (...

Embodiment 2

[0098] The process of obtaining synthesis gas is the same as in Example 1.

[0099] Synthesis gas (flow rate is 12Nm 3 / h) After entering the Fischer-Tropsch synthesis module, first pressurize it to 2.0MPa through a synthesis gas compressor. The pressurized synthesis gas enters a set of Fischer-Tropsch synthesis fixed-bed reactor with an output of 18L / day, and Fischer-Tropsch synthesis reaction occurs under the action of iron / copper / potassium / alumina catalyst (reaction temperature 265°C, space velocity 7500h -1 ), the reaction product and unreacted synthesis gas are separated by three-stage gas-liquid separation in the hot separation tank (160°C), cold separation tank (30°C) and cryogenic tank (-2°C) to obtain hydrocarbon products and gas products Most of the unreacted gas is mixed with the synthesis gas through the circulation compressor and then re-enters the reactor (the ratio of circulation gas to synthesis gas is 2.5), and a small part is discharged from the system. The...

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Abstract

The invention provides a modular skid-mounted device for making oil through marsh gas. The device comprises a purifying compressing and reforming module, Fischer-Tropsch synthesis module and a publicengineering module, wherein the purifying compressing and reforming module is used for performing impurity removal, purification and compression on marsh gas and then taking the marsh gas as a raw material for methane reforming reaction, then performing methane reforming reaction on the raw material and converting the raw material into synthesis gas which serves as a raw material for Fischer-Tropsch synthesis; the Fischer-Tropsch synthesis module is used for converting the synthesis gas obtained through methane reforming reaction into hydrocarbon substance, and meanwhile guaranteeing the circulation of energy and reaction materials during Fischer-Tropsch synthesis reaction; the public engineering module is used for treating reformed water generated by the purifying compressing and reforming module and synthetic water generated by the Fischer-Tropsch synthesis module, and providing power, materials and energy required by all the modules; all the modules further comprise automatic control systems which are matched with one another and used for controlling the operation of devices of all the modules. The skid-mounted device can be designed and customized in a standardized manner, saves the cost, can be subjected to overall skid mounting, is easy to transport, mount and dismount, and can be continuously operated.

Description

technical field [0001] The invention belongs to the technical field of biogas to oil production, in particular to a modular skid-mounted device for biogas to oil production. 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 sawdust, leftover food in urban household kitchens, and organic waste such as restaurant waste. Biogas will be produced during the burial 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 industrially feasible technology in the biomass industry. At present, the main uses of biogas are: (1) living fuel: household cooking, heating, lighting an...

Claims

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Application Information

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IPC IPC(8): C10G2/00C10L3/10C02F9/10C01B3/38
CPCC01B3/38C01B2203/062C01B2203/1241C01B2203/169C02F1/04C02F1/66C10G2/32C10L3/101C10L3/103Y02E50/30
Inventor 石玉林王飞王涛陈水银蒋东红
Owner 石玉林