Investigation of the reaction process unter engine-like conditions

MM1 项目的全球目标是开发和优化多联产工艺，即具有多个有益方面的工艺。这些包括例如将机械能相互、可控地转化为化学能或产生具有化学价值的物质。能够执行此类过程的机器原型是活塞气缸装置，可以用作内燃机（其中化学能转化为机械能）或机械驱动的化学反应器（化学能中的机械能）。通过对快速压缩机 (RCM) 的研究，可以提高对这些过程的了解，RCM 代表了这种活塞缸装置的实验上易于访问的版本。当前项目阶段取得的结果显示了进一步改进多联产过程的潜力（关于有用量的产量，例如物质周转）。特别是，从当前阶段的工作来看，产生了以下具体目标。在许多研究过程中（主要是 CO2 的干重整、从CH4)，进一步提高材料产量在物理上是可能的。然而，这无法通过实验或技术实现，或者需要付出巨大的额外努力才能实现，部分原因是动力学障碍。这适用于 v.a.对于燃料非常丰富的混合物来说，这些混合物已被证明是有希望的，但是用先前的措施引发的反应已经耗尽了在初始条件（温度、压缩比）的 RCM 区域中可实现的能力。最重要的是，生产高压缩温度需要添加高比例（高达 95 摩尔%）的低热容量稀有气体。这些措施通常对实际应用相当不利。因此，目标是在 RCM（和类似压实机）可行的条件（压缩比、初始温度和压力）下，即使在惰性混合物中也能引发化学反应。

The global goal of the project MM1 is the development and optimization of processes for polygeneration, ie processes that can have several beneficial aspects. These include e.g. the reciprocal, controllable conversion of mechanical into chemical energy or the presentation of chemically valuable substances. A prototype of a machine that can perform such processes is a piston-cylinder device that can be used as an internal combustion engine (in which chemical energy is converted into mechanical energy) or as a mechanically driven chemical reactor (mechanical energy in chemical energy). The knowledge about these processes is to be improved by investigations on a Rapid Compression Machine (RCM), which represents an experimentally well-accessible version of such a piston-cylinder device.The results achieved in the current project phase have shown potential for a further improvement of polygeneration processes (with regard to the yield of useful quantities, such as substance turnover).In particular, from the work of the current period, the following concrete goals result.In many of the investigated processes (mainly dry reforming of CO2, production of C2H2 from CH4), a further increase of the material yield would be physically possible. However, this could not be realized experimentally or technically, or only with great additional effort, partly because of kinetic obstacles. This applies v.a. For very fuel-rich mixtures that have proven to be promising, but where the initiation of the reaction with the previous measures have already exhausted the achievable in the RCM areas of initial conditions (temperature, compression ratio). Above all, the production of high compression temperatures required the addition of high proportions (up to 95 percent by mole) of noble gases with their low heat capacity. Such measures are usually rather unfavourable for practical applications.The goal is therefore to initiate chemical reactions even in such inert mixtures under conditions that are feasible in RCM (and similar compaction machines) (compression ratios, initial temperatures and pressures).