Hydrocarbon fuel gas utilization method

A technology for hydrocarbon fuel and alkyne, which is applied in the field of utilization of hydrocarbon fuel gas, can solve the problems of ineffective utilization and burning, and achieves improved operability and safety, good combinability and good technical effect. Effect

Inactive Publication Date: 2018-04-24
潜江市大虾风范水产品养殖有限公司
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Problems solved by technology

[0003] The technical problem solved by the present invention is the problem that the hydrocarbon fuel gas rich in alkynes in the existing butadiene plant is sent to the torch for burning and cannot be effectively utilized, and a new utilization method of hydrocarbon fuel gas is provided

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  • Hydrocarbon fuel gas utilization method

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Embodiment Construction

[0010] according to figure 1 Shown, adopt technological process of the present invention, feed is the hydrocarbon material that is rich in alkynes, and one section selective hydrogenation reactor adopts nickel-palladium-copper polymetallic catalyst; Reaction temperature is 45 ℃, and reaction pressure is 2.0MPa, hydrocarbon The volume space velocity of similar materials is 2.5 hours-1, the molar ratio of hydrogen to alkyne is 1.5:1, and the first-stage hydrogenation reactor is a bubbling bed. The two-stage selective hydrogenation reactor adopts a nickel-molybdenum polymetallic catalyst; the reaction temperature is 160°C, the reaction pressure is 2.5MPa, the hydrocarbon material volume space velocity is 1 hour-1, and the mol ratio of hydrogen and alkynes is 450:1, The second-stage hydrogenation reactor is a fixed bed.

[0011] according to figure 1 Shown, adopt technical process of the present invention, feed is the hydrocarbon material that is rich in alkynes, and one section...

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Abstract

The invention relates to a utilization method of hydrocarbon fuel gas, which mainly solves the problem that the hydrocarbon fuel gas rich in alkynes in a butadiene plant is sent to the torch for burning and cannot be effectively utilized. The fuel gas is absorbed into a liquid phase, and the absorption liquid is mixed with hydrogen and then enters a catalytic selective hydrogenation reactor. Under the action of a nickel-palladium-copper-silver multi-metal catalyst, a selective hydrogenation reaction of alkynes occurs, and the alkynes are hydrogenated into diolefins, and the product The solvent and C4 olefins are separated in the analysis tower, and the bottom material is returned to the absorption tower for recycling. The top material is mixed with hydrogen and then enters the second-stage catalytic hydrogenation reactor, and dienes are hydrogenated into monoolefins under the action of a nickel-molybdenum metal catalyst. The technical solution of sending butene-1 to the butene-1 device for separation to obtain butene-1 products can better solve this problem, and can be widely used in the industrial production of recovering hydrocarbon fuel gas and increasing the production of butene-1.

Description

technical field [0001] The invention relates to a method for utilizing residual hydrocarbon fuel gas in a butadiene extraction device, in particular to a method for utilizing hydrocarbon fuel gas. Background technique [0002] Butene-1 is an important chemical raw material with relatively active chemical properties. It is an important component of C4 in refineries and C4 hydrocarbons in cracking. High-purity butene-1 is mainly used for copolymerization of linear low-density polyethylene (LLDPE) monomer, poly-1-butene plastic, and high-density polyethylene (HDPE). From the perspective of Asia, butene-1, one of the raw materials for LLDPE production, is seriously in short supply. There are only a few butene-1 producers in Asia that sell products to the outside world. With the rapid growth of demand from existing LLDPE producers, the demand for butene-1 will become stronger. Contents of the invention [0003] The technical problem solved by the present invention is the prob...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C5/08C07C11/08C07C11/167C07C5/09
CPCC07C5/08C07C5/09C07C11/08C07C11/167
Inventor 毛德珍
Owner 潜江市大虾风范水产品养殖有限公司
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