A combined power generation system and process for oil shale retort gas chemical chain hydrogen production

Abstract

The invention discloses a combined oil shale dry distillation gas chemical chain hydrogen producing and power generating system and process. The combined oil shale dry distillation gas chemical chain hydrogen producing and power generating system comprises an oil shale crushing and screening unit, an oil shale dry distillation unit, a dry distillation gas condensing and recycling unit which are sequentially connected and also comprises a fuel reactor, a steam reaction, a generating unit and an air reactor. According to the combined oil shale dry distillation gas chemical chain hydrogen producing and power generating system and process, residual coal gas with low heating value in the existing oil shale dry distillation oil refining process is used for producing hydrogen with high economic value and high chemical value, waste heat in a dry distillation gas recycling and hydrogen producing process is used for generating and producing steam, heat balance in a chemical cyclic process is realized by virtue of integration of heat, resource utilization rate and energy efficiency in the existing oil shale dry distillation process are improved, and process economic benefit is greatly increased.

Description

Technical field [0001] The invention belongs to the technical field of energy and chemical industry, and specifically relates to a combined power generation system and process for producing hydrogen from oil shale dry distillation gas chemical chain. Background technique [0002] With the rapid development of our society and economy, the demand for energy is increasing. In order to reduce dependence on imported oil, my country is actively implementing a diversified energy strategy to ensure continuous energy supply. Oil shale is a kind of sedimentary rock with a skeleton of inorganic minerals and solid organic matter. It is a solid fossil fuel with low calorific value. my country's oil shale resources are very rich, with reserves of 719.9 billion tons, equivalent to 42.6 billion tons of dry distillation oil, which is much higher than the proven reserves of crude oil of 2.2 billion tons. my country is not only rich in oil shale reserves, but also relatively shallow, which is con...

AI Technical Summary

Problems solved by technology

There are two problems in this utilization approach: one is that the energy efficiency of the combustion power generation process is low; the other is that the retort gas contains H 2 and CO, the direct combustion of these two gases did not make efficient use of their chemical value, resulting in a large waste of resources

In addition to this, the economics of the oil shale refining process are poor

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